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Sound Ordnance™ M-2100
2-channel car amplifier 75 watts RMS x 2
Item # 777M2100 | MFR # M2100
This item is no longer available.
Our take on the Sound Ordnance™ M-2100 by Crutchfield's Buck Pomerantz
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-2100 2-channel amplifier deploys 75 watts RMS to each channel, giving your music plenty of firepower. Or you can bridge the M-2100 to mobilize 200 watts RMS to your sub. An adjustable high-pass filter makes sure your full-range speakers operate within their optimum range and give you the best tone possible. If you're driving a sub, the low-pass filter and a selectable bass boost allow you to control your bass barrage at will.
The M-2100 amplifier uses sophisticated power supply and output technologies to ensure clean amplification from the inputs 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.
Very low cost amp that is built well and doesnt take up alot of space
Mark H, Pennsylvania
What's in the Box:
- 2-Channel amplifier with a 30A ATC blade fuse inserted
- Spare 30A ATC blade fuse
- 12" Speaker-level input harness (with a 4-pin Molex plug on one end)
- 4 Self-tapping screws (5/8" length)
- 4 Split lock washers
- 4 Flat washers
- Owner's Manual
- 2-channel car amplifier
- 75 watts RMS x 2 at 4 ohms (100 watts RMS x 2 at 2 ohms)
- 200 watts RMS x 1 bridged at 4 ohms (4-ohm stable bridged)
- variable low-pass filter (50-250 Hz, 12 dB/octave)
- variable high-pass filter (80-2,000 Hz, 12 dB/octave)
- selectable bass boost (0, 6, and 12 dB at 45 Hz)
- PWM (pulse width modulation) power supply with MOSFET output
- preamp inputs and outputs
- speaker-level inputs
- fuse rating: 30A x 1
- 8-gauge power and ground leads recommended wiring and hardware not included with amplifier
- 9-1/2"W x 2-1/8"H x 9-7/8"D
- warranty: 3 years
- Our 60-day money-back guarantee
Sound Ordnance™ M-2100 Reviews
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Features and Specs
|RMS Power Output (Watts x Channels)||
75 x 2
|Peak Power Output (Watts x Channels)||212 x 2|
|Power at 2 Ohms (Watts x Channels)||100 x 2|
|Bridged Power (Watts x Channels)||200 x 1|
|Minimum Impedance Bridged||4|
|Minimum Impedance Unbridged||2|
|Best Frequency Response||12-25k Hz|
|THD at Rated RMS Power||1%|
|Signal to Noise Ratio||95 dB|
|Low-Pass Crossover Frequency||50-250 Hz|
|Low-Pass Slope (dB/octave)||12 dB/oct|
|High-Pass Crossover Frequency||80-2k Hz|
|High-Pass Slope (dB/octave)||12 dB/oct|
|Bass Boost||0, 6, 12 dB|
|Bass Boost Frequency||45 Hz|
|Speaker Level Inputs||Harness|
|Preamp Outputs||1 pair|
|Parts Warranty||3 Years|
|Labor Warranty||3 Years|
Power Ratings: The Sound Ordnance M-2100 is a two-channel Class AB amplifier with an RMS power rating of 75 watts per channel into 4 ohms, and 100 watts per channel into 2 ohms. The amp can also be bridged into a 4-ohm load for a power rating of 200 watts. Power ratings are measured with an input power of 14.4 volts.
Crossovers: The M-2100 is equipped with both high-pass and low-pass crossovers. You can set the low-pass cutoff frequency between 50Hz and 250Hz, and the high-pass cutoff frequency between 80Hz and 2kHz. A 3-way switch lets you select low-pass, high-pass, or full range operation. The crossovers have a 12dB per octave slope.
Super Bass: The amplifier has a bass boost switch, labeled Super Bass, to give small subwoofers more volume in the low frequencies. You can select the amount of boost with the 3-way switch: 0dB, 6dB, or 12dB.
LED Indicators: The M-2100 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.
Removable End Caps: The end caps on the M-2100 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. 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.
Speaker Level Input: In addition to the RCA preamp outputs, the amplifier also has speaker level inputs for connecting a head unit that does not have preamp outputs. The supplied speaker level input harness has 4 bare wires on one end and a 4-pin Molex plug on the other end.
Fuses: The M-2100 features one 30-amp ATC blade fuses.
Our Product Research Team
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Product reviews from the Crutchfield Labs
by Video Team
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.
6 questions already asked
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question. [ Krissy Oct 06, 2015 ] Staff
I forwarded your question to an Advisor and they responded with the following: Not all amplifiers allow for speaker-level inputs to be used in conjunction with an RCA pre-amp output, but the Sound Ordnance M2100 doesn't say that the RCA pre-amp output isn't functional if you go with speaker-level connections. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy Oct 06, 2015 ] Staff
1 answer Why does my amp keep overheating? My subs were working fine i have 2 12" subs in an enclosure and when i hooked both up, the amp seemed to overheat and go into protection mode after 5 minutes, when before, when i only had 1 speaker hooked up, it was fine. Is it a problem with the power output or maybe with the stereo? I also switched out both my rear speakers and my 2 front speakers. [ Sascha Sep 14, 2015 ]
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/. [ Krissy Sep 15, 2015 ] Staff
1 answer I have 2 sound ordnance 12" subs with peak watt at 500. I'm just curious if this amp would be able to work with both subs without blowing fuses and stuff like that? I originally had the subs hooked to a 1000w Sony explode amp but it blew numerous fuses. So I'm just curious if this is the amp I need or could anyone lead me in the right direction? [ Tyler Jan 07, 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 Jan 08, 2015 ] Staff
Thanks Stan! This pulled up when I did a search for an amp for my truck, but it's clearly too big. [ Joe Jul 05, 2014 ]
I Hope this helps Joe P! Height (inches) 2-1/8 Depth (inches) 9-13/16 [ STANLEY T Jul 04, 2014 ]
It's 100x2 at 2ohm [ ERNESTO Mar 31, 2014 ]
If I can remember I think the installer said 300 [ HENRI L Mar 31, 2014 ]