Win the battle for great sound in your ride. Sound Ordnance amplifiers feature tough construction, rugged looks, and a 3-year warranty, so you can enjoy the full power of your music for the long haul. Even better, you can add Sound Ordnance to your arsenal at a surprisingly affordable price.

The Sound Ordnance M-1350 mono subwoofer amplifier packs a 350-watt wallop that'll give your subwoofers some serious firepower. An adjustable low-pass filter and a variable bass boost allow you to control your bass barrage at will.

The M-1350 amplifier uses sophisticated power supply and output technologies to ensure clean amplification from the input all the way to your speakers. Special circuits protect the amp from overheating and short circuits, and a turn-on delay virtually eliminates that annoying thump when you turn your system on.

Product Highlights:

  • mono subwoofer amplifier
  • 210 watts RMS x 1 at 4 ohms (350 watts RMS x 1 at 2 ohms)
  • variable low-pass filter (40-300 Hz, 12 dB/octave)
  • variable bass boost (0-12 dB, at 45 Hz)
  • variable subsonic filter (10-40 Hz)
  • PWM (pulse width modulation) power supply with MOSFET output
  • preamp inputs and outputs
  • fuse rating: 25A x 2
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 13-5/16"W x 2-1/8"H x 9-13/16"D
  • warranty: 3 years
  • Our 60-day money-back guarantee

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Sound Ordnance™ M-1350 Reviews

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very nice

Written By terry, Florida on Sunday, November 01, 2015

Crutchfield Customer Review (What's this?)

Love it. Being a class A B amp, it will run abit warm, but sound quality and power is spot on

Pros: Love it.

Cons: Wish it had a fan, but I will rig one up

good for the money

Written By avery, Virginia on Wednesday, September 30, 2015

Crutchfield Customer Review (What's this?)

As I am not an expert on amps it does the job and that's about as much as i know. it does get insanely hot if you run it for an extended period of time, and by run i mean tee off the cars next to you for a half hour. I wonder if I could get more boom out of my 12 inch kicker that has about the same output or input power ratings. but as hard as this must be working for it to get as hot as it does I wonder if i could get more boom out of the next step up SO amp. Key being i would still go with SO because they are worth the money.

Pros: keeps my kicker going plenty loud

Cons: Unbelievably hot

Amp is good, mounting isn't

Written By Popbumper, Illinois on Tuesday, September 22, 2015

Crutchfield Customer Review (What's this?)

I bought this amp to add to my car's very complex integrated audio system. I needed a supplemental sub amp to drive a 12" Pioneer Sub. Like many in this scenario, I needed the amp to fasten to the sub box, making the install easy to disconnect if I needed more trunk space. The connections to the amp are just fine - easy to access but somewhat hidden away. There are plastic sides (ends) have 2 holes each for mounting screws. This is not ideal. Secondly, the plastic ends leave plenty of exposure to the terminals. Hidden from view - but not from items in your trunk that might slide around. It would be better to have covers that snap into place or can be easily screwed onto the amp chassis. This aside, the amp is powerful, has plenty of tweaking options, and will rumble the trunk hinges loose if I drive it hard enough. For the price, you probably will find it hard to beat. It does seem to run a bit warm.

Pros: Plenty of power, price, crossover, bass boost.

Cons: Mounting method, size (somewhat large).

Great amp, unbeatable price!

Written By MrGoodberry, Pennsylvania on Monday, August 17, 2015

Crutchfield Customer Review (What's this?)

The amp is sturdy and has some nice weight to it, also, the amp is pretty big. Everything hooked up fine, personally I am a fan of the wire-only connections. All those lugs do is fall apart. 8 gauge wiring fit the amp like a dream.

Pros: Good sound, good frequency range, good build quality, hefty, dirt cheap.

Cons: Could have used a couple more controls, or at least, SO could have not given the common controls like 'Gain' their own names.


Written By Akers, California on Thursday, July 30, 2015

Crutchfield Customer Review (What's this?)

Replaced my second Soundstream Mono amp for 2 MTX 10"s with the M-1350. Both the Soundstreams failed within 2 yrs. Both, which is odd for a Soundstream. Installed this amp. Great little unit with plenty of clean power. I wanted something a bit smaller than the monsterous sized soundstream that barely fit under the seat of my Nissan Titan. The M-1350 worked well. I added an external cooling fan as the airflow under the seat is non-existent and this little guy gets warm. Install was tricky, however. The design for the mounting screws is a bad one. I took of the silly plastic plate and first attached in to a piece of wood (see pic), then installed the amp. Much easier this way, but be careful as the plastic cover is cheap and scratches easily. If anything, if you want something clean that is very reasonably priced, this amp should work well for you. Can't beat the 3 year warranty.

Pros: Good performer at a very good price.

Cons: Stupid plastic mounting plate is just that: stupid. Bad design and annoying.


Written By Jason, Lebanon, Tennessee on Monday, July 06, 2015

Crutchfield Customer Review (What's this?)

This amp is great me subs are hitting harder than they were with my all amp

Pros: Remote control Bass boost Looks great

Cons: None

Great Amp

Written By RK, Riverbank, CA on Wednesday, June 17, 2015

Crutchfield Customer Review (What's this?)

I doubt there is a better amp on the market in this price range. The mono-sub amp connects easily and has good punch with the Rockford Fosgate R2S-1X10 10".

Sound Ordnance M-1350

Written By David, Oklahoma City on Saturday, May 02, 2015

Crutchfield Customer Review (What's this?)

This amp was actually pretty surprising. For $110 it performs far and above what I was expecting. With everything turned down to the lowest setting the level of bass that I achievers was astounding. I've recommended this to several friends already who were amazed by the sound.

Pros: Low cost Clean sound Small footprint Easy install Simple controls Bass volume knob included

Cons: The terminals are under the trim at the ends. These can be removed to attach the power and speaker wires. There aren't any other cons that I can think of.

Sound Ordnance M-1350

Written By CHEZ1, New Jersey on Wednesday, April 08, 2015

Crutchfield Customer Review (What's this?)

I must say this amp kicks more than what I expected. At first I was a little hesitant since I have always used either pioneer or rockford fosgate amps but since i saw the amp was backed up by Cruthfield I figure I would give it a shot. I am so glad I did! This amp gave me a good boom in my trunk and the sound was more than what I expected plus the price you can not beat at all. I will be ordering another one for sure.

Pros: Small size, super low price and very easy to install....

Cons: can't find one yet....

Nice Amp!

Written By Lenny D, Texas on Tuesday, March 17, 2015

Crutchfield Customer Review (What's this?)

Does exactly what I need it to do without the big name price!

Pros: Very solid piece! Really like the performance, looks and price!

Cons: None at this time.

good price, good amp

Written By a.g., knoxville, tn on Thursday, February 19, 2015

Crutchfield Customer Review (What's this?)

Good amp for the price. If you are not entering competition, I highly recommend this amp.

Pros: Price, sound, appearance, low profile height.

Cons: Inputs are not standard. Have too use bare wiring instead of end pieces, works, just feels awkward.

clean unit

Written By motorman, Northern Calif on Sunday, February 08, 2015

Crutchfield Customer Review (What's this?)

Had one of these in a truck I sold, so when I got another truck, had to get this unit again. Very dependable, clean sound. Use it to drive an 8" Infinity sub in a closed box- nice tight bass

Pros: Love the remote variable output that it comes with; installed it in the extra slot under the head unit. It is real handy to adjust the bass for the type of music that is being played on the fly

Cons: The chrome end covers are a pain when wiring the install. But after that, who cares

very pleased

Written By Anonymous, Virginia on Wednesday, February 04, 2015

Crutchfield Customer Review (What's this?)

Very pleased. Put this on two JBL GT0804 running a two and pushes them hard. No heat issues. Everyone complaining about the terminals has obviously never had an amp with end caps. Just remove the two Allen screws and the cap will slide off for easy access. No issues.

Pros: Good power from inexpensive amp.

Cons: None.


Written By Anonymous, murrysville pa on Wednesday, January 28, 2015

Crutchfield Customer Review (What's this?)

I bought this amp to power 2 kicker 10c104s. All I have to say is that this is by far one of the best amps that I have come across. Powers my 2 10s with no problem and slams

Pros: Easy instructions

Cons: The only con is the way that it mounts to your box/vehicle. just a pain

great product

Written By Anonymous, Marlboro,ny on Sunday, January 11, 2015

Crutchfield Customer Review (What's this?)

Bought a 10 in JL audio sub and paired this amp with the speaker and definetly happy with my purchase. Recommend this to anyone who needs a great amp to power their subwoofer.

Pros: Very reasonable price Delivers what I need out of my sub

Cons: None

Way Under Priced

Written By Jeremy U, Chesterton, IN on Tuesday, November 11, 2014

Crutchfield Customer Review (What's this?)

I threw this on my Single Kicker CVR and it sounds clearer than some of the more expensive amps i have used. The speaker was a hand me down from a friend that took it out of his old car and with this amp it sounds better than when he had it with a crunch amp.

Pros: 1.Great quality sound 2. Very well priced 3. Small enough to hide

Cons: Can over heat fairly quickly if you are really beating on it.

Nice Amp

Written By happy customer, iowa on Saturday, October 25, 2014

Crutchfield Customer Review (What's this?)

Very simple to install, also very sleek design and isn't and eye sore. Very powerful for the size. Would recommend this to anyone wanting to start upgrading your music listing experience

Sound OrdnanceT M-1350

Written By Anomynous, champaign il on Saturday, October 18, 2014

Crutchfield Customer Review (What's this?)

I bought this amp to replace my crap old one that burnt up. This amp is AMAZING! The sound is very clear and it has very good heat management.WORTH THE MONEY!!!

Pros: Sounds and works great.Came with amp kit.

Cons: none

A whole lotta bang for not a lotta buck!

Written By JetFixr, Altamonte Springs, FL on Tuesday, October 14, 2014

Crutchfield Customer Review (What's this?)

Buddy in customer service fixed me up with the Sound Ordnance M-1350 paired with a Polk Audio db1040dvc and what a combo! I put this in a '98 Corvette and it sounds AMAZING. I was going for a setup that made minimal impact on the stock appearance of the car. The amp is mounted on the back wall of my trunk area and, while it is visible, it fits well in the car. It's very easy to setup and dial in. The remote control works well through its full range whereas others I've tried are pretty much on or off. The remote is also very small and can be mounted discretely. I chose to tuck mine under the drivers seat, again to maintain stock appearance. Be careful on your choice of wiring kit... The power terminals will max out with a 6 gage wire. The amp itself has air vents on the bottom... Although the directions don't specify, I mounted mine on rubber isolators to give it a little clearance for those vents. Bottom line, for the very affordable price tag, you won't likely be disappointed.... And with customer service like Crutchfield, where's the risk?!

Pros: Nice appearance, easy to dial in, good clean sound, ample features (low pass filter, subsonic filter, remote bass boost, internal protection, wide range on the gain) and above all else, great price! When I got mine, the wiring kit was included as a promo offer. It's got some weight and feels like a well built product in hand.

Cons: Be sure to use a good, sharp #2 Phillips screwdriver on the terminal blocks. The design of the case will prevent you from being straight on the terminal screws. This wasn't a problem for me and the driver didn't slip, just be aware of this. Also, read above about the air vents on the bottom. Still, this is hardly something to quibble about for such a solid product.

Great for the money!

Written By Aces1697, Ohio on Tuesday, September 09, 2014

Crutchfield Customer Review (What's this?)

Bought this amp to power my 12in Infinity reference 1262w sub. it is 300w rms and 1200w peak power. This amp at 2 ohms is undeniably powerful and gets the job done. The bass knob that comes free with this amp is very useful to allow you to adjust to the bass you want. it has several filters to tune it to where it needs to be. I have a closed box and this shakes my car and stands my hairs up. i was expecting much less out of a modestly priced amp, but it proved me wrong. it is a very nice looking amp and is easily mounted with the screws that are provided. m1350 is the perfect amp for some good sounding bass.

Pros: Looks good easily adjustable filters free bass remote

Cons: kind of hard to attach wires but a drill will fit if you figure that out like i did


Written By Anonymous, Rhode Island on Monday, September 08, 2014

Crutchfield Customer Review (What's this?)

Great amp for the price. Amp is powering my 10" Kicker CompR in my 2013 F150 supercrew. Sounds amazing


Written By jbeintherockies, Aurora, CO on Sunday, August 31, 2014

Crutchfield Customer Review (What's this?)

I am using this amp to power the Sound Ordnance M2-8SVC sub. The sub is in the Select Increments XJ-Pod 8" Subwoofer box for 84-01 Jeep Cherokees. The head-unit is the Alpine CDE-153BT CD Receiver. Together, it sounds great and I wish I had done this years ago. I did not give this product a 5 star rating because of the inadequate instructions.

Pros: does the job

Cons: Since the directions that come with this amp are not specifically written for this model amp, some of the 1350-model features are not mentioned in the instructions. For example, the pictures of the amp connections and switches display options that do not exist for this amp. They also fail to display some of the options that this model amp does have (subsonic filter for example). The directions do not mention the input signal adjustment, which as set from the factory, will cause the sub to pro

True RMS, Clean Sound, Great price

Written By KRNAZNBOY, Santa Monica, California on Tuesday, August 26, 2014

Crutchfield Customer Review (What's this?)

350watt RMS On a 350watt rms sub and I cant even get it to 3/4 volume without stressing my sub. True rms ratings, and a clean output. Nothing more to say...

Pros: Looks cool Cheap Functional (just as good as more expensive) True rms Easy to setup Free Wiring kit (crutchfield only)

Cons: Ambiguous crossover and gain settings Some external parts are cheap plastic Have to take the side panel off to wire it up. Not the most secure wire crimps

Great bang for the buck

Written By Ben, New Mexico on Saturday, August 16, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

My second sound ordinance purchase first was a set of 6x9's and now an amp to run a Kicker 10. Very impressed with SO and the performance had for the price. Love the remote amp gain very nice for adjusting to different styles of music.

Pros: Great value and performance for the price

Cons: None


Written By Shane, Maui on Friday, August 15, 2014

Crutchfield Customer Review (What's this?)

Great sub for the price.

Pros: Lots of bass

Cons: none

Great amp!

Written By 318Fwood, Natchitoches on Tuesday, August 12, 2014

Crutchfield Customer Review (What's this?)

I have this amp on a single 12 inch pioneer and it sounds great. It's in an ex cab F150 and for the price can't be beat. Thanks

Pros: Great value, good power

Cons: Size.


Written By ZackS, Dover, DE on Sunday, August 03, 2014

Crutchfield Customer Review (What's this?)

The Sound Ordinance M-1350 is a wonderfully powerful amp and It hasn't skipped a beat. It powering my 2 12" MTX Terminators and they sound great with this amp and I'm very content!

Pros: Very powerful, Never shut off, Never overheated

Cons: Does get hot

Good Amp

Written By Garrett, Richmond on Saturday, July 26, 2014

Crutchfield Customer Review (What's this?)

I bought this amp to pair with a Kicker L5 that I had purchased a while back. It gives a good amount of power (wired for 2 ohm load) and is quite capable of filling my Tahoe with either solid sounded bass, or the loud bumping and thumping depending on the song. The remote, but wired, level control is a nice feature to add extra control of the sound level

Pros: Price, Wiring Kit, Power

Cons: Wiring connections

Great Amp!

Written By 260rem, Winston Salem NC on Monday, July 21, 2014

Crutchfield Customer Review (What's this?)

Fro the price, this is gonna be hard to beat.

Pros: Solidly built, great sound, extra adjustment pots on the unit.

Cons: Made in China

nice unit

Written By Jimmy, kansas on Saturday, June 14, 2014

Crutchfield Customer Review (What's this?)

Nice unit easy connections. Manual description of adjustments does not match what it actually says on the amp.

Cons: The owners manual

Works great

Written By Anonymous, Conway, AR on Monday, June 02, 2014

Crutchfield Customer Review (What's this?)

Easy to install, remote knob works great, powers my 12" sub perfectly.

I knew it could be better!

Written By MikeO., Mount Vernon. WA on Friday, May 30, 2014

Crutchfield Customer Review (What's this?)

The stock amplifier powering the subwoofer in my BMW Z3 finally gave up so it was time to upgrade. Wow! What a difference this amp made! I had already replaced the head unit and all of the speakers but there was always something not quite right with the sound. I have this amp powering a Polk 8" dual voice coil sub that replaced the 5.25" stock sub. I had to make some custom modifications in the space between the roll bars to make it fit. After installing the new subwoofer I was initially disappointed that the bass response wasn't any better. When the stock amplifier quit I thought, now I can get some bass! I knew it could sound better and man, does it ever! This amp running just the sub has made all the difference. I have lows that I never had before and much clearer mid bass. I had my wife sit in the car and listen and she said, "My seat is shaking". Nuff said! Obviously with my set up I'm not going to be rattling the neighbors windows when I drive by but, it is so nice to finally have decent sound in my convertible. Just in time for summer too! Easy to install and plenty of room for sound adjustments with the bass boost feature!

Pros: Awesome power for the price. Good looking amp too.

Cons: A little on the big side.


Written By Chris, Iowa on Wednesday, May 14, 2014

Crutchfield Customer Review (What's this?)

This amp works well until it fries out your head unit. I had been using this amplifier with a JL sub for about a year running it at 4 ohms. I hooked up a brand new kicker L3 to it at two ohms and withing an 30 minutes of listening to it i heard a loud thud and then a buzzing noise from the sub. While I was checking the ground I noticed the protect mode light on the amp was flashing on periodically. I hooked up a new JL amp and still got the buzzing. I then hooked up another kenwood head unit and the buzzing stopped. So now I have to send back my head unit for repairs, pay the shipping costs, and wait about 3 weeks with no radio. I will only be able to get a gift card for the amp which also annoys me. I would not recommend this to a friend. I am using a JL amp pushing 250 watts rms and it sounds way better with the JL. I am very disappointed with Crutchfield. I will be trying to purchase my electronics locally in the future.

Pros: Works well at 4 ohms. For a cheap amp it does what it is supposed to do

Cons: The speaker connections are at a terrible angle and are very hard to connect. This unit also gets pretty hot as others have said.

Great sub

Written By Anonymous, Elkhart, IN on Saturday, May 10, 2014

Crutchfield Customer Review (What's this?)

The sub looks great , sounds great good power as a sub amp

Pros: Looks and power and price

Cons: Nothing

Great Amp!

Written By BJKD, Koloa, HI on Friday, May 09, 2014

Crutchfield Customer Review (What's this?)

Great amp! You get wayyyy more than you pay for in my opinion. I've worked and have been in the mobile electronics field since eq boosters were the only type of external amp you could get. Gave this amp a shot because of the price, and it actually surprised me. It won't be enough to break glass or flex your panels, but for the price, it's wayyy worth it. I have it running a single dvc 12" (in my family car) and it pushes a lot better than my old Alpine mrv-757. Worth more than what you pay for it.

1999 honda accord

Written By Austin, Tucson, AZ on Friday, April 25, 2014

Crutchfield Customer Review (What's this?)

Does it's job well. Powering a JL CS112-WXv2

Cons: Gets pretty hot, can cause burns if touched after a number bass-heavy songs

Its okay

Written By Thomas L., Chico, California on Monday, April 14, 2014

This is a great amp, i loved it. For the longest time i was using it in my house while I was working on running the wiring and setting up my car to bounce. This amp runs my 2 Diamond CX122s perfectly and i love the remote that it has, very helpful to turn down the volume in a hurry. contrary to other reviews, this amp does have the power to shake the neighborhood, i got up to 111Db with this baby without tuning, so it kicks butt. Although, I'm fairly sure that with limited space and having to put the amp on top of my subs decreased the life of it for use in the about 4 days. This amp shut off all of a sudden and I heard a crackling, then it came back online about 15 minutes later and it wouldn't shut off, mind you my car is shut off. No fuses were ruined or burnt, I checked them all. Once all seemed fine I started it up again and either the amp was feeding my subs a distorted sounding bass or due to the shutoff it damaged my expensive woofers (dont mean to brag or rant but I worked 8 hours a day for my summer break to buy this crap). Hopefully it didnt damage them but due to this I have lost some trust in the amplifier. I would love to thank Crutchfield though because they sent me another one free and it just got here today!

Pros: Looks cool, cheap, affordable, works well, good ability to adjust sound output, long wired remote that goes to the amp for quick volume control, pretty small, light weight

Cons: short trunk life (if mounted on top of woofer enclosure), that's all. This amp......this amp man, great amp

great amp

Written By joe, va. on Monday, March 24, 2014

Crutchfield Customer Review (What's this?)

this thing rocks,im running to 12's with it,i would say if you are looking to shake the neighbor hood it make lack in that dept.maybe with 10's,but with the 12's,its a little does shake everything in the car,and for what i like it's does run a little warm in 2 ohm mode.i think as long as you give it breathing room it will be fine.i would recomend this thing to gives great low lows,it will rattle you in the vehicle,maybe its my sub box thats looking for more power,sealed boxes tend to do that.but this is alot of power for what it cost.

perfect match for my sub

Written By charles, Louisa Virginia on Sunday, January 05, 2014

Mated perfect with my Polk 10 sub. Is very clean. Can't go wrong with Sound Ordnance.

Pros: Clean power, easy hook up, and looks good in my truck.

Cons: None

Great amp!

Written By Austin, Yuma, AZ on Thursday, December 26, 2013

Paired with my 10" rockford fosgate amp this thing is great! Great power for my amp and hits awesome! Great price and it looks really good too!

Pros: Great price and value, looks good, bad amp!

Cons: Screws to mount it are kind of hard to get to, but thats it!

sound ordinance

Written By mikek, marietta, ga. on Thursday, December 19, 2013

Crutchfield Customer Review (What's this?)

great amp plenty of power. definitely alot of bang for the buck. can easily push 2 subs.

Pros: price,power, lots of adjustments,good appearance,great value,plenty of punch.

Cons: needs a side cover for appearance

Solid Amp for Subs

Written By BillDub, Seattle on Monday, December 02, 2013

Crutchfield Customer Review (What's this?)

For a budget amp, this amp makes the JL's sound great.

Pros: A good match in power to JL Audio 10's in sealed enclosure.

Cons: A bit bulky for an amp


Written By julis, Virginia on Saturday, October 19, 2013

Crutchfield Customer Review (What's this?)

i snagged this amp when it was on sale and it was worth the money. i hooked it to one of the sound ordinance subs and makes a big difference in the sound that it puts out. it looks really nice with the silver and black. i like how it has an extra control that you can wire up to the front of the car where you can control the power being put through the sub. it is super awesome.

Pros: mostly easy to install, looks super cool

Cons: the screws where you install the wires is a bit uncomfortable to get to

Nice Price Nice Amp

Written By Kirochan, Okinawa on Friday, September 27, 2013

Crutchfield Customer Review (What's this?)

Good Price and nice sound. Does what it needs to do, Power a SUB. Has alot of features you normally would not find, like adjustable subsonic and remote to name a few. I only have it powering a single 8" Kicker running free air. Does just what it needs to do. Once I hit the States, it will be used to power two 8" Kickers, and I know it would be plenty for it. Nice clean sound coming out as well. One thing I like about the remote that comes with it, is that acts more like a gain adjuster, not a set freq bass booster. There is a bass booster on the amp that boost the bass at whatever freq is facatory set at. But overall, this thing is awesome and with an awesome price. I really wish I bought all of my amps from the S/O line. I would have saved money with the same results.

Pros: Good features and good price

Cons: none

Good product

Written By Kenton, Anchorage, Alaska on Friday, September 27, 2013

Crutchfield Customer Review (What's this?)

It's everything you need for a low wattage amp. It gives out just enough power for my subwoofer. It also never overheats and it rarely even gets warm. This is a great first amp for a first subwoofer.

Pros: Good air flow, small

Cons: Not a lot of power

Sound Ordnance™ M-1350

Written By Anonymous, Coppell, Tx on Friday, September 13, 2013

Crutchfield Customer Review (What's this?)

works great

solid amp

Written By Anonymous, post falls id on Friday, August 09, 2013

Crutchfield Customer Review (What's this?)

I got this amp for my jl audio sub that I has good power and ran my sub with ease. It even had a bass booster! I like it a lot and will continue to use it with my sub's

Pros: Bass booster and low pass and subsonic filter and powers sub's with ease

Cons: None

So far so great...

Written By Persianchemist, Merced, CA on Friday, June 14, 2013

Crutchfield Customer Review (What's this?)

Using this to power a kicker 10' at 4ohm. This was my first amp and sub combo plus I did the install myself. I have zero experience doing any of this stuff. For me this totally does the job. The amp was very easy to install and wire up. It has plenty of power for this sub. If you need an amp to power subs this is a great one.


Written By Brandon K, Omaha, NE on Sunday, June 09, 2013

Crutchfield Customer Review (What's this?)

Awesome amp at an awesome value. Like people said below, the angled inputs for wires are a little annoying since the side covers make it hard to get to with a screwdriver, but it's completely manageable. I'm also not sure if it's common to put the cooling vents on the bottom of the amp, but I hope that doesn't become an issue. I did use some spacers between my sub and the amp so that it has some more room to cool just in case. Looks great and performs great so far. Love the remote gain control that comes with it too. Would highly recommend.

Pros: Looks great. Great value - a lot of power for the money.

Cons: Angled wiring inputs make for more difficult installation than necessary. Air vents are on bottom of amp.

Good for a cheap amp

Written By Anonymous, Oklahoma City on Friday, May 31, 2013

Crutchfield Customer Review (What's this?)

If you are looking for a cheap amp to drive a small entry level sub, this will get the job done. I just needed some sound in a car which isn't used often, so I paired this with an old RF HE2 10. Careful, it will get pretty hot. I have yet to shut it down, but it got very hot after an hour of play and I mounted the amp with 1/4" spacers to make sure the vents on the bottom were not obstructed. I tune amps using test tones and a multimeter, when tuning this amp it wouldnt get near target voltage which makes me think it wont produce a full 350 watts, but keep in mind the price of this amp. Also, the endcaps make it difficult to get to the connections, so if mounting in a tight space keep this in mind.

All in all, if you are just getting started, and might upgrade in the future this isn't a bad place to start.

Pros: Good entry level amp with a good warranty sold by a solid company Sub Sonic filter - Rare on amps at this price point

Cons: Heat True produced power Size Layout - Can be challanging to get to connections

Gets the job done cheap

Written By Brian, Escondido, CA on Tuesday, May 21, 2013

Crutchfield Customer Review (What's this?)

I'm powering 2 10" Kickers 150 RMS each, with this amp and it does the job great. Only down side was having to take off the decorative chrome piece to install the wiring. It was very easy, just seemed like a poor design. I highly recommend this amp though if you're on a budget and don't need a ton of power.

Pros: Cheap, plenty of power, brushed aluminum sides look nice, remote gain control

Cons: Awkward wiring, and kind of big. There are vents on the bottom of the amp which seems like a bad idea, after mounting the amp the vents don't get any air. I've only had the amp for 2 weeks, so time will tell how important those vents are.

Perfect Amp!!!!!!!!

Written By Jorge, Brooklyn park,MD on Tuesday, May 14, 2013

Crutchfield Customer Review (What's this?)

No problems it all,works like it should!!!!!!!

Pros: Great Amp!!!!

Cons: None

Seems great... For ten minutes.

Written By Javan, Wisconsin on Saturday, May 11, 2013

Crutchfield Customer Review (What's this?)

Let me prefice this by saying that I am an engineering student, with a great degree of experience with circuits and audio systems, I have been doing this a LONG time.

I installed this amplifier with an Infinity 1252w, and tuned the amplifier to output about half the volume it was capable of. High quality, high gauge wires, and careful installation. After about an hour of driving, my bass dissappered, and upon driving home, noticed the protection LED was lit. I carefully removed the speaker wire and RCA inputs, one at a time at a time, shutting down for ten seconds and rebooting after each one, Still lit.

I then removed the amp, and hooked it up to my test system on my work bench. Hooking it up to a remote battery with high gauge wire, and running it to a Kicker L7, I found that the unit, without ANY music playing, became VERY hot, and then blew the fuses. Rechecked all the connections and then inserted new fuses, they blew immediately, with and without speaker attached.

Needless to say, I did my due diligence, and this particular unit was JUNK. Perhaps just a lemon, that remains to be seen when S/O returns my email. Hopefully they stand behind their product.

Pros: CHEAP, Looks good

Cons: Doesn't work

Sub Amp

Written By Warner, New Orleans on Tuesday, March 19, 2013

Crutchfield Customer Review (What's this?)

I decided to add a dedicated amp to power my sub whoofer aboard my boat. The staff at Crutchfield were extremely helpful with determining my sub's power handling capabilities and selecting a suitable amp.

The tech support team supplied installation instructions that made installing and connecting the amp a breeze.

Pros: Great amp with an outstanding warranty and tech support.

Cons: None so far


Written By Anonymous, miami , FL on Sunday, February 17, 2013

Crutchfield Customer Review (What's this?)

this thing rocks, i hooked it up with 2 10 inch kickers and wired them for 2 ohms, sounds awesome, but if youre looking to shake the ground or ratthe body panels, just know this wont cut it.

Pros: everything, small, easy to install

Cons: awkward wire input placement, its at an angle and i had to remove the fake chrome part to install.

Great Amp

Written By Billy, Massapequa Park, NY on Friday, February 15, 2013

Crutchfield Customer Review (What's this?)

I have this paired with my Polk Audio DXi 108 and the pair is just unbelievable. I was very surprised at the outcome but I would recommend that pair to anybody. And I like how the bass controller is included, I mounted it right next to my drivers seat on the center counsel and its perfect for adjustments when needed.

Pros: Great power output. Bass controller included.

Cons: none


Written By natep, carmel, IN on Saturday, January 12, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I would highly recommend this amp. You get lots of bang for the buck. I coupled this with 2 10' kicker subs(150w rms each). It powers both no problem. I found the gain control a bit confusing. There is no gain control on the actual amp itself. You must plug in the external gain control to control it. Not a big problem. I especially love the subsonic filter. I have it set at 25 hz. There is no point in giving 10' subs anything lower. I am still wondering if the bass boost is set for a certain frequency, or just the whole spectrum. Most amps are set at 45 hz. Mounting it to your box is easy. mark holes and drill 1/16 holes and boom. youre done. As far as distortion goes, i havent found any so far. I have my bass boost set at 6db and yet, none. Good job sound ordnance!

SO M-1350

Written By Anonymous, Ketchikan, AK on Sunday, January 06, 2013

Crutchfield Customer Review (What's this?)

This amp is worth all that you pay and more. I'm used to having amps of more known brand names but bought this for my sons ford ranger for his first system. It's being used to push one JL Audio 10w6 in a small sealed enclosure. Though it won't be breaking windshields or shake the ground, it gets plenty loud and sounds very good. Considering I only paid a hundred bucks I think it was worth it instead of buying a used amp of higher quality ad still probably pay 2-3 times more.

Pros: Low cost Sounds good

Cons: The way the wires mount are awkward because its angled but once it's on it's all good. The mounting points. You need to have a long Philips bit if using a drill. The end caps look and feel cheap. They're made of plastic and covered with fake chrome. But all the cons are mostly cosmetic and don't hurt performance. I still would recommend this amp.

Great Value!

Written By Matthew, Santee, CA on Saturday, December 22, 2012

Crutchfield Customer Review (What's this?)

This amp has some great features...great price for the wattage you get and among what others say I enjoyed the slanted inputs for the speakers and the battery/ground/remote, to make it easier I just took the side plate off to access the screws easier..not that hard. Great value! Powers my 10" JL woofer just fine and no real issues I can tell so far.

Pros: Excellent Value for the Power

Cons: None so far.

don't hesitate

Written By Riskbreaker0, Catonsville, MD on Tuesday, November 27, 2012

Crutchfield Customer Review (What's this?)

My first amp was a mono D-class amp from MTX, amazing. It also cost me $500 for an amp that only put out 1500watts max. Just bought two of these M1350, I'm totally sold on sound ordnance. I now own their m4050 amp, for the four kicker 6.5" speakers in my firebird, and the two m1350 for my two 12" kicker compVRs. I was running the m1500 on two kicker comps, loud, but not loud enough. The old combo I had, before it was stolen, was the mtx 1500D, and a 12" L7 solo baric. The two compVR's put that solo baric to shame, and for a much cheaper price. I was worried about amps for so cheap, but don't. High powered, long lasting, everything I'd expect from a high end amp costing $400+ for much less.

Pros: Great power for an amazing price, absolutly love it!!!

Cons: The screws to install the wiring (power, ground, speaker) are at a weird angle, but once in work fine. Also the knobs to adjust the bass and other setting require a pretty small flat head screw driver, can't use regular size philips or flat head. I have all sorts of sizes, but you may need to buy one if you don't have as much tools as I do.

Excellent product

Written By Scott A, Paducah, KY on Tuesday, October 30, 2012

Crutchfield Customer Review (What's this?)

This amp is great for running subs. I have installed it in my wifes suburban, along with a line converter, and one 10in kicker 4ohm dual voice coil sub. It is ran in a parallel circuit so it drops the load down to 2omhs. The amp really puts out great power and sound quality. I'm sure this amp would have no problem pushing (2) 12in subs, as long as you ran them in a parallel circuit and took advantage of the 2ohm capacity of this amp. I do agree that the wire connections being on a 45 degree angle makes it a little bit more tedeous, but its not that big a deal, and overall I'm extremely happy with this amp. It comes with the remote volume control too, and thats a big plus also.

Pros: lots of power, and great sound quality.

Cons: wire connections are a bit odd to get to, but no step for a stepper!


Written By Pres.T, Richmond VA on Thursday, September 20, 2012

I bought this used with a B-12 sub and i wasn't expecting the sheer power i got and the clarity. This is my first amp and i easily wired it myself, I drive an 02 Escape and the is zero i repeat ZERO rattle of the sub or my car but it hits so hard i can feel my heart vibrate. Every-time it hits i smile, so i drive down the road looking like the smiling idiot with his music WAY too loud. If you want something to power your sub this will certainly do, it its the best money ever spent.

Pros: Ease of installation Power of bass output EVERYTHING

Cons: none

Best value

Written By Elliot, chesapeake, VA on Saturday, September 08, 2012

Crutchfield Customer Review (What's this?)

i love this amp. at first i was unsure of sound ordinance but after using this amp for almost a year i haven't had a single problem. paired with 2 JL W1V2 8in subs this thing powers them perfectly. people think i have 2 12in subs. Fits right under the passenger seat of a 2004 nissan frontier

Pros: -Not expensive -comes with remote to control volume -pairs the speakers by itself to get the lowest ohm rating -looks cool

Cons: -wont accept 4 or 0 gauge wire

First time buyer

Written By Bill, lake Jackson, tx on Tuesday, July 10, 2012

Crutchfield Customer Review (What's this?)

This amp seem to be a good fit for the the Sound Ordinance 12" sub and box purchased together, i had a problem with the newly purchased JVC radio sub rca out puts not getting signal back to the amp. Once i got the radio issues resolved the amps remote bass control did not function and i had to return the amp for an exchange. Crutchfields tech center was very helpful and we returned the amp for a replacement. Once the amp was hooked up and everything was working it was good, didn't hit as hard as i would like but again the price was reasonable and the over all sound is good, its not a competition amp.

Pros: easy install, good price.

Cons: Its not a competition amp.

Just bought it

Written By Danny, CT on Saturday, June 30, 2012

Crutchfield Customer Review (What's this?)

just received this in the mail, hooked it up and found out that the amp was bad. They are sending a new one out immediately and we will see how that goes. O.ther than that it seems like a nice amp although the design of it is quite horrendous

Great Amp For the Value!

Written By Caleb M., Jacksonville, AL on Monday, June 18, 2012

Crutchfield Customer Review (What's this?)

Amp does everything it said it would do. Great amp for the price. But having a lower price comes at a price. The design for this thing is god awful. With the RCA inputs and Speaker inputs being on opposite sides, my mounting options became severely limited. Also, the screw in terminals being covered by the overhanging chrome looking piece.......what? Who thought that would be a good idea? Even though the design is awful, it definitely gets the job done, and it does it well. I love the remote with the amp, it comes in handy.

Pros: Awesome sound, Great Value, Remote is handy

Cons: Design is awful

Nice amp strange design

Written By Ray Benn, Washington, DC on Friday, June 01, 2012

Crutchfield Customer Review (What's this?)

Nice power for the price point and plenty of features. I have it powering a single 12in audiobahn 400watt sub and it hits nice and low! My Only gripe is the design of the screw terminal and mounting brackets. The screw terminals are angled and the mounting bracket gets in the way of the my tools! Also the frequency knobs are only numbered for min and max values I would love to know exactly where the other values are but that's minor! I will purchase more S/O gear for my wife's car good product and excellent price

Pros: Price performance and doesn't get to warm even in warm weather

Cons: Screw terminal, frequency knobs and mounting bracket design

Great amp for the price

Written By Joe, Powell, OH on Sunday, May 13, 2012

Crutchfield Customer Review (What's this?)

I was able to catch this amp on sale about two weeks ago, and I've been loveing it ever since! I have it powering a single Polk audio 10" sub that sits in a custom box, and it sounds great! The amp delivers just the right amount of power to make the sub hit nice and hard. I truly believe that this amp will give you and great bang for you buck that you won't be disappointed with!

Pros: Remote bass control small size great price Easy to install Helpful instructions (if you were to need them)

Cons: I have not been able to find any cons up until this point.

Good Sound, Poor Design

Written By Luke M, Hillsborough, NJ on Thursday, May 10, 2012

Crutchfield Customer Review (What's this?)

The amp's sound is great. The only reason I'm giving it a poor review is because the design is very frustrating to work with, compared to other amps. The first thing I noticed before buying this was that the RCA inputs and wired volume control input are on the opposite side of the amp's power inputs and the speaker outputs. While that restricts the variety of installation locations, I was willing to cope with it because the amp was cheap and reviews said it was a great value.

I discovered the hard way that the power terminals accept no greater than 8 GAUGE wires. I had purchased and installed a 4 gauge kit before the amp arrived, and had a rough time cutting the wires down to size.

Once the wires were trimmed down to size and inserted into the terminals, I realized that the terminals were angled downwards significantly. This pushed my thicker cables into the surface it was mounted on, and wires didn't look like they made strong, safe connections with the amp. I ended up buying a 4 gauge to 8 gauge power block and some 8 gauge red and black wires, which made the angled terminals less of a problem before I discovered another annoyance.

The chrome endpiece extending over the edge of the amp seems to prevent screwdrivers from making solid contact with the screw heads. The screw stripped after being retightened only a few times from being loose.

You won't find a better value for the money, but it looks like you get what you pay for in terms of design.

Pros: No complaints, great sound!

Cons: Only up to 8 gauge power wires. RCA inputs and wired volume control input on opposite side from power inputs and speaker outputs. Angled, screw-based power terminals are difficult to work with, and chrome endpieces get in way. This amp would be perfect if it's designers would put all the inputs/outputs on one end and sound controls on the other, combined with 4 gauge spring terminals and no wasted space (chrome endpieces).

Great Amp

Written By sxrsil3nt, Ontario, CA on Tuesday, April 24, 2012

Was surprised at how well this amp performs, I will definitely buy SO again and will recommend it to friends.

Pros: -Doesn't heat up much -Remote Bass Boost controller

Cons: -Mounting brackets are a little strange

Pleasantly Surprised

Written By Cory K, St Louis, MO on Friday, February 17, 2012

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I would consider myself an audiophile for 20 years now and rarely purchase home or mobile stereo equipment from brands I'm not already familiar with or have come highly recommended by friends. Needed a new amp/sub combo for a new vehicle, went with this amp and couldn't be happier. It's driving a single 10" Fosgate P1 quite well. I would purchase another S/O amp with confidence.

Pros: Value, Value, Value! This amp is so reasonably priced it's sick for the controls/specs. Set screw style of wiring hookup is so much easier than having to attach gold plated ring terminals to the ends of power, ground, etc.

Cons: Very minor, but the chrome painted, plastic housing around the actual amp body is what you mount/screw this baby down with. Just pay attention when you screw it down to not overtighten or APE it and you'll be fine. I could see how one could crack this plastic mounting bracket pretty easily. All of my other amps have been screwed down to the actual metal housing.

Best Amp Value by Far

Written By TylerH, Cincinnati, OH on Friday, February 10, 2012

Great value for the price. Puts out more than enough power, and doesn't heat up. Remote level control makes it easy to adjust power according to personal wants. Couldn't be happier. Will definitely be buying more S/O products.

Pros: Good power; not too expensive. Really like the remote level control. Really heavy duty connections.

Cons: None so far.

Sound Ordnance M-1350

Written By Coors1, South Dakota on Friday, February 10, 2012

Crutchfield Customer Review (What's this?)