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Sound Ordnance™ M-1350

Mono subwoofer amplifier — 350 watts RMS x 1 at 2 ohms

100 Reviews | 5 questions - 8 answers

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Item # 777M1350

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Overview

Our take on the Sound Ordnance™ M-1350

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.

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.

Confused about impedance? Check out our article on matching subs and amps.

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

terry, Florida

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What's in the Box:

  • Mono amplifier with two 25A ATC blade fuses inserted
  • Spare 25A ATC blade fuse
  • 4 Self-tapping screws (5/8" length)
  • 4 Split lock washers
  • 4 Flat washers
  • Remote bass control module
  • 16.5' Remote bass control cable (with 6-pin RJ25 modular phone plugs on each end)
  • 2 Self-tapping screws (3/8" length)
  • 2 Small split lock washers
  • Owner's Manual

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
Reviews

Sound Ordnance™ M-1350 Reviews

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Details

Hands-on research

Product Research

Features
Connections

Features

Power Ratings: The Sound Ordnance M-1350 is a mono-block Class AB amplifier with an RMS power rating of 210 watts per channel into 4 ohms, and 350 watts per channel into 2 ohms.Power ratings are measured with an input power of 14.4 volts.

Crossovers: The M-1350 is equipped with a low-pass crossover and a subsonic filter. You can set the low-pass cutoff frequency between 40Hz and 300Hz. The subsonic filter, designed to block ultra low frequencies that can damage speakers and rob amplifier power, is variable between 10Hz and 40Hz. The crossovers have a 12dB per octave slope, and cannot be turned off.

Bass Boost: The amplifier has a rotary bass boost control, which is continuously variable from 0dB to +12dB at 45 Hz.

LED Indicators: The M-1350 features two LED indicators: a green LED that illuminates when the amp is powered on, and a red LED that illuminates when the amplifier is in protect mode due to overheating or a short circuit in the speaker wire.

Remote Bass Control: The amplifier comes with a remote bass control module to allow you to adjust the volume of the amp from the front of the vehicle. The module has a rotary volume control knob, and an LED to indicate when the amplifier is turned on. The module is designed to mount under the dash, and comes with 16-1/2 feet of cable.

Connections

Removable End Caps: The end caps on the M-1350 are removable with a 3mm Allen wrench (not supplied) to make it easier to attach the power and speaker wires.

Power Connections: The power and ground connections are set screw terminals that will accommodate up to 8-gauge wire. (An 8-gauge amplifier wiring kit is recommended.) The remote turn-on terminal is a set screw terminal that will also accept up to 8-gauge wire. A Phillips-head screwdriver (not supplied) is required to tighten/loosen the terminals.

Speaker Connections: The speaker connections are set screw terminals that will accommodate up to 8-gauge wire. Even though this is a mono amplifier, there are two sets of speaker outputs. The terminals are wired in parallel internally, allowing you to connect two 4-ohm speakers to separate terminals. A Phillips-head screwdriver (not supplied) is required to tighten/loosen the terminals.

RCA Inputs and Outputs: The amplifier features a pair of stereo RCA inputs for connecting your head unit. There is also a pair of stereo RCA outputs for feeding the preamp signal to another amplifier, if needed.

Fuses: The M-1350 features two 25-amp ATC blade fuses.

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.

Accessories
Staff Reviews

Product reviews from the Crutchfield Labs

Make your music sound lively and vital with a Sound Ordnance amplifier. Watch this Crutchfield video to see what these rugged, value-packed amplifiers have to offer.

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Q & A

Customer Q&A

5 questions already asked

Yes you can hook up multiple subs to the mono amp. Look up a wiring diagram so you can wire the subs for the ohms you want - this gets a little complicated when you have dual voice coil subs. I believe Crutchfield has some diagrams. - by the way this amp is a great value and packs a lot of power - enjoy! [ MITCHELL  Nov 06, 2015 ]
It can power 2 just follow directions on running 2. [ mike  Nov 06, 2015 ]
Yes you should have one channel per sub woofer. So a 2 channel sub is necessary for 2 subs. Or 2 mono amps, 1 per subwoofer. If you choose a 2 channel amp make sure each channel has the proper (watts) for the sub woofers. [ JOHN  Nov 06, 2015 ]
The answer is yes, you should have a two channel amp for two sub woofers. A mono amp will only have one channel for outputs. This means there is only one pair, positive and negative, of output ports to go to a speaker or sub. A two channel amp will have 2 sets of plugs each providing power to the sub that is hooked up to that port. [ JOHN  Nov 06, 2015 ]
4 Ohms but if the sub were 2 ohms the amp would produce 2 ohms [ johnny  Aug 31, 2015 ]
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system. [ Krissy  May 19, 2015 ]  Staff
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system. [ Krissy  Apr 12, 2015 ]  Staff
Yes, this should be plenty of power to move an 8" subwoofer in a sealed enclosure. [ ADAM D  Jul 02, 2014 ]
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