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Sound Ordnance B-8P

80-watt powered bandpass subwoofer

Item #: 777B8P

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304 Reviews

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The Sound Ordnance B-8P powered bandpass sub comes ready to add some dynamic thump to your ride — just wire it up for power and secure it in your trunk or cargo area. This rugged box houses an 8" sub that delivers plenty of firepower, thanks to its polypropylene cone, treated foam surround, and stamped steel basket. The B-8P's built-in amplifier powers the sub with 80 watts RMS for surefire response, and you can use the variable low-pass filter and phase control to tune the bass barrage for your vehicle.

The handsome bandpass enclosure features 5/8" medium-density fiberboard construction for enduring strength, while a clear acrylic window lets you see the woofer in action. Inside the chamber, four LED lights provide visual enhancement to go along with your bass. The durable black carpet cover protects the B-8P and your vehicle from nicks and scrapes. And the Sound Ordnance logo gives you the added assurance of a 3-year warranty to go with your investment.

Product Highlights:

  • powered bandpass subwoofer
  • 8" woofer
  • built-in 80 watts RMS amplifier (160 watts maximum)
  • acrylic front window
  • frequency response: 46-150 Hz
  • variable low-pass crossover (70-200 Hz)
  • variable phase control (0-180°)
  • preamp- and speaker-level inputs
  • 8- or 10-gauge wiring (not included) recommended
  • dimensions: 14-7/8"W x 11-1/8"H x 14-7/8"D1 x 10-1/8"D2
  • warranty: 3 years
  • Our 60-day money-back guarantee

Who needs a powered subwoofer?

To produce bass, you need a sub, an enclosure, and an amplifier, and it can be little tricky to match them all up. A powered sub eliminates all the hassle, as the manufacturer designs the enclosure to house the sub and amp together. This all-in-one solution is especially useful in smaller vehicles, where there's no room to mount a separate amp, or in any vehicle where you need every bit of cargo space. Powered subs range from small, flat boxes that fit under your seat to larger boxes that go in your trunk.

Hands-on research

What's in the box?

Download owner's manual

  • Amplified subwoofer featuring an 8" subwoofer in a bandpass enclosure
  • 7.5 amp ATO fuse (installed)
  • Owner's manual
  • Warranty information

Features and Specs

General
Enclosure Type Bandpass
Finish Material Carpet
Grille Acrylic
Connector Type RCA/Spring term
Bi-amp Inputs No
Woofer Size (inches) 8
Woofer Material Poly
Passive Radiator None
Width 14-7/8"
Height 11-1/8"
Depth 14-7/8"
Second Depth 10-1/8"
Parts Warranty 3 Years
Labor Warranty 3 Years
Specifications
Frequency Response 46-150
Amplifier Power (RMS) 80 watts
Maximum Wattage 160 watts
Sensitivity N/A
Impedance N/A
Second Voice Coil Impedance N/A
Crossover Point 70-200

Product Research

Features

Overview: The B-8P amplified subwoofer features an 80-watt RMS (160 watts max) amp and an 8" sub housed in a bandpass enclosure. The inside of the sealed chamber is illuminated by four white LEDs, which turn on when the subwoofer is powered on.

Controls

  • Level: rotary dial to set the amplifier gain control
  • Phase: rotary dial to set the subwoofer phase; 0° to 180°
  • Frequency: rotary dial to control the low pass crossover frequency; 70 to 200 Hz; the crossover slope is 6 dB/octave

Connections

  • Power: power, ground, and remote inputs are on a screw terminal strip; each is 0.35" wide
  • Line Input: stereo RCA jacks
  • Speaker Input: spring terminals for speaker-level input

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Sound Ordnance™ B-8P Reviews

Average Customer Review:

304 reviews
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Good

Written By Kevin, Gilroy, California on Monday, February 23, 2015

Crutchfield Customer Review (What's this?)

The subwoofer looks great and does add bass to your car but I was expecting a little bit more from it. But it's easy to hook up.

Pros: Looks good, fast shipping, easy set up

Cons: Bass could be a little better

SO sounds great!

Written By YoDisMike, Ohio on Sunday, February 15, 2015

Crutchfield Customer Review (What's this?)

Great value! Great product! Great Price! Not gonna win any sound competitions but it will provide great low end to any vehicle. Had mine installed in my wife's 2010 Versa. Sounded great with the factory stereo and not over powering the highs. 5 star review!

Pros: Great value! Great product! Great Price!

Cons: Wish they listed a 12" version lol

Mother of Bass!

Written By sotto52, Arizona on Thursday, February 05, 2015

Crutchfield Customer Review (What's this?)

Stop debating about other powered sub enclosures. I dropped this bad dude in my wife's Toyota Highlander and holly crap did this thing surprise me. For it being only a 8" sub, it sounds like a 12" and the enclosure is very nice on the eyes. The illumination feature is merely just a white light that lets you see in the box, not a colored one in which I thought it may be. Anyways, instead on buying a separate amp and sub enclosure this thing made it easy. All you need to do is wire the amp kit and plug her in, presto! I will come back and upload a you tube video for everyone. The you tube videos I watched really didn't do it justice, but they did help a little. The quality sound it produces for under $150 is outstanding. This will make any music super fun to listen to for fractions of the price. That is all, I'm going outside to go sit in the car and jam out.

Pros: Sound Quality; Price tag; Small in size, not in sound

Cons: I would have preferred a side mounted amp connection vs. rear input

Great product

Written By Joe, Scranton, Pa on Thursday, February 05, 2015

Crutchfield Customer Review (What's this?)

Love the product, works great and for a great price. Delivers a deep bass without distorting sound. Only problem with it is that the directions for tuning the sub are difficult.

Pros: Great sound, good price

Cons: Tuning, can get a cheaper wiring kit online

Good deep sound

Written By SG, Durango, CO on Friday, January 23, 2015

Crutchfield Customer Review (What's this?)

I installed four new polk speakers and a Pioneer receiver to replace the stock system on my 13 silverado crew cab. I waited with the sub install because I forgot to order the wiring kit for it. The polk speakers sounded awesome, good all around sound. Clear and sharp. Then I added the subwoofer and holy smokes! This thing adds a whole new dimension. Adjustability is great. Classical music sound heavenly and Metallica rocks out!

Pros: Sound, ease of install, sound.

Cons: Size. Does not really fit my truck, but I sacrifice a bit of rear seat for great sound!

Great low end for the price

Written By Brian, Oklahoma City on Tuesday, January 20, 2015

Crutchfield Customer Review (What's this?)

Bought one of these three years ago for another vehicle and sold it when I sold the car. Just bought another one - the Sound Ordnance B-8P - for my 2012 Civic and love it all over again. This time I am using with high-level inputs from the rear speakers and the low end is excellent. Really completed my factory sound system. install took about 30 minutes. Love it once I got all the levels and settings all tuned. Excellent!

Pros: Price, fit and finish, value, LED lighting

Cons: Not a single one

A Real Bargin

Written By Firefighter, Washington on Sunday, January 11, 2015

Crutchfield Customer Review (What's this?)

For the price I cant imagine a bigger improvement in my trucks sound. It was a straightforward installation. Not easy, not too hard. It took me about four hours. I was disappointed was I first fired it up. Then I started to play with the sound controls. When I got the crossover set right it opened up the sound. I think it took over the lows that my six inch speakers were having trouble making. All in all a great buy.

Awsome sound for an 8

Written By slippysauce, Utah on Tuesday, January 06, 2015

Crutchfield Customer Review (What's this?)

I cannot believe anyone would give this product anything lass than 5 stars, I have owned JL audio, Rockford Fosgate, MTX, and Kenwood sound systems, that were all fantastic, the reason I tried out sound ordinance out was because of the great reviews that people left. My kedwood system was stolen out of my car and I didnt want to go to the expense of replacing everything, so I put a sony xplode stereo in and this Sound Ordinance powered sub in, I figured for the bucks I paid for the sub was well worth it, I already had the wiring that was the only thing that survived the theft. I have always has a stereo system of some sort in every vehicle that I have ever owned. I was completely surprised by the bump I got out of this 8" sub. I have it in the trunk of my 2000 ford escort and it sounds amazing.

Pros: Price, sound, and great quality

Cons: none what so ever

Not loud enough for me

Written By Drennen, United States on Tuesday, January 06, 2015

It was okay, built solid, easy to hook up. I wished it had a remote for the volume level. The bottom line for me is that it could not surpass the bass from my door and rear deck speakers. It was about equal. So I am returning it. If you have very little bass in your system currently, this would be an affordable improvement. If you have large door speakers and 6x9 deck speakers like me, it might not be able to really add to that. Probably need a 12 and 150+ watts.

Pros: Solid, high quality construction. Attractive

Cons: Its still an 8" sub. Which for some people, will not be enough.

Good little sub

Written By Benjo, Concord, CA on Sunday, January 04, 2015

Crutchfield Customer Review (What's this?)

Good little sub to fill in the lows. This is not the sub that rattles your windows and pounds your chest but it gives your sound system the bass that is lacking from the door speakers.

Pros: Well constructed, solid and provides adequate bass. Compact.

Cons: The plexiglass look makes it gimmicky, I guess it appeals to the younger crowed. The 8 inch sub does not provide the boom that you maybe looking for. Should provide better documentation in tuning the sub

Like the Thumpin

Written By Brent, Whiteland, IN on Saturday, January 03, 2015

Crutchfield Customer Review (What's this?)

This is a good & powerful little subwoofer set-up. Perfect for an add-on. Had other kids at my daughter's school ask if I wld install one in their cars. Also had a tint shop guys ask about it so he cld order one

Pros: Easy hook up, sounds great

sub for outlook

Written By Nate, southeastern Mass. on Friday, January 02, 2015

Crutchfield Customer Review (What's this?)

So far so good. This was purchased to fill in the lows for a new setup in Saturn outlook. Definitely not put in to shake the mirrors off the car, for filling in the music and adding the punch and fill the 6 1/2 door speakers can't handle cleanly, it performs very well. Having the amp internal makes removal when I need the cargo space a breeze!

Pros: All in one design makes removal when I need space easy. Fills in music very nicely and price is reasonable

Cons: So far is doing exactly what I bought it for so closes to a con I have is my teens want enough base to blow the windows out.....an 8 won't do that.

Good speaker!

Written By Sound ordance B-8P, Hester, louisiana on Wednesday, December 17, 2014

Crutchfield Customer Review (What's this?)

Nice speaker for how small it is!

Pros: Hits really good highs. The speaker is only an 8 but dont let the size of the speaker fool you!

Cons: Doesnt hit lows, but i didnt expect it because its only an 8".

Awesome, but takes time to install

Written By Spencer, Georgia on Saturday, December 13, 2014

This sub woofer and amp combo is a beast, and as everyone has said delivers solid bass. I am a teenager and I think this is fully sufficient for the bass heavy music these days. You will definitely feel that vibration, but without it vibrating your entire car, which I think is ridiculous. Also, if you do want it to shake your whole car,,, you're going to have to increase your price range a couple hundred dollars. Also note that you cannot expect to install this yourself in a quick period of time unless you are experienced with car stereo systems. I have never done anything with stereo systems, and I decided to fully re-do my '96 Jeep Cherokee's. I got this sub, 2 new Kicker speakers, and a Clarion head unit. All of these took me a total of about 10 or 11 hours to install, but in my opinion, is totally worth saving the money for somebody to install it. So what I'm trying to say is, you will run into problems, blowing fuses, missing wires, missing tools, etc. so just know you're in for a ride installing this and possibly a whole new stereo system, but I found it fun and so satisfying at the end when you get that feeling of "I FINALLY finished". Would totally recommend, even though it is somewhat a hassle to install.

Pros: Great bass Great price (you won't find a better deal for a sub and an amp) Don't have to buy or install a separate sub and amp Looks nice

Cons: Takes a while to install If you want a crazy sub that shakes your entire car, this isn't the one for you

1998 Camry

Written By BigPaco, Winnetka, CA on Wednesday, December 03, 2014

Crutchfield Customer Review (What's this?)

Installed in my 1998 camry. I hav a 9month old son so I need to fit a stroller into the trunk. I didn't want to get this Sub because I was scared nothing was gonna fit. But when it came in and I installed it, I had plenty of space in my trunk for groceries and the stroller. The sound coming out of my trunk is amazing! Raddls the back when I want it to. Sounds perfect and add plenty of bass to my car. Sounds nice and clear and not messy at all. Very happy with the price and sound of the sub and it was a perfect price for me.

Pros: Loud Doesn't take up too much room Good bass Is stroller proof Heavy duty Built to last Amazing sound Perfect for small trunks

Cons: None so far!

Here Comes The Boom!

Written By John G., Florida on Wednesday, November 26, 2014

Crutchfield Customer Review (What's this?)

5 Stars All The Way! I did a lot of research before coming upon the 8-BP. Bottom line...This purchase was excellent! A sturdy, well made, powered sub! You could not build a box of this quality and sound for the purchase price. Rich bass, high and low. I have two 6x9 Pioneers and the 8-BP in my Nissan Frontier and the sound is fantastic!

Pros: Sturdy, well built enclosure. Powered! Ready to go, out of the box!

Cons: None

Sound Ordnance B8P

Written By David, Virginia on Wednesday, November 26, 2014

Crutchfield Customer Review (What's this?)

This is a great addition to my car system it is just what it needed just a little but powerful subwoofer for a great price.

Pros: Great for the price and plenty of power for the plus 50 crowd

Cons: none

Great little bass setup

Written By Mike, Texas on Monday, November 24, 2014

Crutchfield Customer Review (What's this?)

Excellent build quality, good controls, looks really nice too. The bass is def solid inside the vehicle, but dont expect it to shake the neighbors windows! Install was done on 2013 JKUR wrangler using an audio control LC2i since the stock "top of the line" Jeep radio has no preamp outputs and totally rolls off bass and volume when cranked up! Def a huge improvement over the OEM subwoofer (which is a total joke).

Pros: Quality build, good sound, small footprint

Cons: None to speak of

very satisified

Written By Robert O, Minneapolis MN on Wednesday, November 19, 2014

Crutchfield Customer Review (What's this?)

For the money spent I am very satisfied with the Sound Ordnance 8" powered sub. It's exactly what I needed to fill in the void in my system. This sub will not blow out any windows but the sound is great, powerful and more than I would expect for the size and retail. Hook up was a breeze since it was an "all in one" system. I was surprised how many more negative reviews or unhappy reviews there were on much more expensive powered subs.

Pros: wallet friendly, easy to hook up, great bass production, sub box looks good and appears to be well built

Cons: No owners manual or directions on installation and suggested crossover settings. The sub box takes up allot of room. All in all many more pro's than con's!

5 Stars!

Written By John W., Rock Springs, Wyoming on Monday, November 17, 2014

Crutchfield Customer Review (What's this?)

For the price you would be hard pressed to find a better Sub for the money or even twice the amount. Great product and service.

Pros: Kicks butt!

Cons: None

I could have saved some money

Written By Norm S, Florida on Saturday, November 15, 2014

This subwoofer is actually a Dual SBP8A powered subwoofer which is available through alternative competitive retailers.

Pros: Easy installation. Good sonics.

Cons: The price is rather steep compared to competitive listings.

great bass for your buck

Written By Jason, Hope Michigan on Thursday, November 13, 2014

Easy hook up, low power draw, and good low frequency sound from a very small space. This sub requires a little experimenting with placement for the best sound. Turned one way its barely noticable, faced the other way it sounds like two eights in a sealed box with more than 80watts rms. I got an open box model at a discount and couldnt tell it had ever been opened at all. Would recommend

Pros: Cheap small good sound seems high quality

Cons: None

Sound ordnance B-8P

Written By Ray, Sadorus, IL on Sunday, October 26, 2014

Crutchfield Customer Review (What's this?)

Was looking for something to fill in the low end of my system ( pioneer head unit and polk db speakers ), I was a little worried that it wouldn't be enough to do the job in the trunk of my 2012 malibu., but after reading many reviews and talking to rusty at Crutchfield, I decided to try it and was very happily surprised, it was easy to install since I had an infinity bass link before and it doesn't take much trunk space, now I can turn my stereo up very high and everything is very clear, I was also happy with the long warranty and low price. Depending on what you want, personally I don't think you can go wrong with this sub. Thanks again Crutchfield!

Pros: Very good sound from such a small sub, space saving and budget friendly

Cons: None yet

Awesome

Written By Jason, Jefferson City, MO on Sunday, October 26, 2014

Crutchfield Customer Review (What's this?)

This has got to b the best sub I've ever had!!! Definitely all the bang for the buck.

Pros: Everything

Cons: Nothing

money well spent

Written By Josh S, Crested Butte, CO on Thursday, October 02, 2014

Crutchfield Customer Review (What's this?)

These things are great! I put one in my wife's car ('97 4Runner) along with a set of Kenwood separates in the front doors. The sound difference is amazing. The new speakers in the door work for the highs and mids, and the sub just rounds out the sound. I can't believe what I have been missing all these years. Bass makes music that much more enjoyable. My kid was so impressed with the sub that I got him one for his 18th birthday. He has Sound Ordnance 6 1/2" speakers in the front and rear of his '96 Jeep Cherokee and it sounded good before but now it sounds really good with this sub. I highly recommend this sub, its is a great bang for the buck. It is fairly easy to dial in and it sounds good. For that matter, the Sound Ordnance 6 1/2" speakers sound great as well. I was told by the salesman that these are Crutchfield's house brand car audio speakers. If you are looking for a decent speaker for a good price, I would not hesitate to buy a Sound Ordnance product, especially this sub.

Pros: good bass, good price, built in amp with plenty of power.

Cons: not that compact, but not huge either

Big Sound, Small Price

Written By EricE, Glendale, CA on Tuesday, September 30, 2014

2012 Honda Civic "Premium" sound system didn't sound quite so premium so I'd replaced stock speakers with Kicker 6.5" 2-way (41DSC654) which was a great improvement in sound quality, but still lacking any low-end oomph. The stock shelf mounted sub really didn't add much to speak of so that was the next upgrade. Due to space restrictions I decided to forgo replacing the stock shelf mounted sub in favor of locating the B-8P self powered enclosed sub in the trunk. For the signal I connected the existing sub high level (1-channel) to one channel on the B-8P (not sure if that's the right way to do it or not, can't get a clear answer out of Crutchfield on that).

This sub is exactly what I was looking for. Provides the perfect amount of low frequency boost (even at low volumes) and the small enclosure fits nicely in the trunk area without taking up too much room. It's not going to blow the doors off but it definitely adds the low frequencies that I was totally missing before.

Product quality is top notch, good solid construction and easy to use controls. The clear window seems strong and should stand up to the rigors of living in the cargo area. I don't have any feelings pro or con about the clear window or the led lighting since I don't spend much time in the trunk while driving.

If you're looking for a great low cost and easy to install sub, can't go wrong with this one. Big sound for such a small box that's easy on the wallet. I would highly recommend.

Pros: Big sound, small enclosure, wallet pleasing price, high quality construction, attractive design, easy to use.

Cons: A bit vague on installation instructions (can't believe I'm the first person to try and connect this to an existing 1-channel sub high level input). Their recommendation was to connect to the L & R speakers, but I would lose the dedicated sub volume control on the head unit, so I don't want to go that way. They also suggested splitting the single sub to low level and then use a splitter, but not sure if that's (a) necessary or (b) if it will improve performance. Still confused on that.

Bass Boosted 2004 Mazda 3

Written By IC, OKC on Wednesday, September 17, 2014

Crutchfield Customer Review (What's this?)

Great purchase for the price. Hook this up correctly and hear the bass you have been missing from your interior speakers. Small size makes it take up the footing close to an average paper grocery bag. I definitely got what I paid for and more in this little unit. Clean, clear bass comes from this little box.

Pros: small in size, clear bass.

Cons: none

Pleasant surprise

Written By Connor, Bartlett, TN on Tues