About the Sound Ordnance M-4100
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-4100 4-channel amplifier deploys 100 watts RMS to each channel, giving your music plenty of firepower. You can also bridge the amp to 2-channel mode to mobilize a pair of subs with 270 watts RMS each, or send 270 watts to a sub while the front channels run your full-range speakers. 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 variable bass boost allow you to control your bass barrage at will.
The M-4100 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.
Product highlights:
- 4-channel car amplifier
- 100 watts RMS x 4 at 4 ohms (135 watts RMS x 4 at 2 ohms)
- 270 watts RMS x 2 bridged at 4 ohms (4-ohm stable bridged)
- variable high-pass filter (15-250 Hz, 12 dB/octave)
- variable low-pass filter (60-200Hz, 12 dB/octave)
- variable bass boost (0-18 dB at 45 Hz)
- PWM (pulse width modulation) power supply with MOSFET output
- preamp inputs
- fuse rating: 40A x 2
- 4-gauge power and ground leads recommended wiring and hardware not included with amplifier
- 17-5/16"W x 2-1/8"H x 9-13/16"D
- warranty: 3 years
- MFR # M4100
What's in the box:
Sound Ordnance M-4100 owner's manual
- 4-Channel amplifier with two 40A ATC blade fuses inserted
- Spare 40A ATC blade fuse
- 4 Self-tapping screws (5/8" length)
- 4 Split lock washers
- 4 Flat washers
- Owner's Manual
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Customer reviews for Sound Ordnance M-4100
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Average review:
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More details on the Sound Ordnance M-4100
Features & specs
Performance | ||
---|---|---|
RMS Power Output (Watts x Channels) |
100 x 4 | |
Peak Power Output (Watts x Channels) | 143 x 4 | |
Power at 2 Ohms (Watts x Channels) | 135 x 4 | |
Power at 1 Ohm (Watts x Channels) | --- | |
Bridged Power (Watts x Channels) | 270 x 2 | |
Minimum Impedance Bridged | 4 | |
Minimum Impedance Unbridged | 2 | |
Minimum Impedance | 2 | |
Best Frequency Response | 12-25k Hz | |
THD at Rated RMS Power | 1% | |
Signal to Noise Ratio | 88 dB | |
Input Voltage | 14.4v | |
Features | ||
Amplifier Class | AB | |
Low-Pass Crossover Frequency | 60-200 Hz | |
Low-Pass Slope (dB/octave) | 12 dB/oct | |
High-Pass Crossover Frequency | 15-250 Hz | |
High-Pass Slope (dB/octave) | 12 dB/oct | |
Bass Boost | 0-18 dB | |
Bass Boost Frequency | 45 Hz | |
Fan Cooled | No | |
Fuse Rating | 80 | |
Speaker Level Inputs | --- | |
Preamp Outputs | No | |
Width (inches) | 17-5/16 | |
Height (inches) | 2-1/8 | |
Depth (inches) | 9-13/16 | |
Parts Warranty | 3 Years | |
Labor Warranty | 3 Years |
Product Research
Features
Power Ratings: The Sound Ordnance M-4100 is a four-channel Class AB amplifier with an RMS power rating of 100 watts per channel into 4 ohms, and 135 watts per channel into 2 ohms. The amp can also be bridged into a 4-ohm load for a power rating of 270 watts (x 2). Power ratings are measured with an input power of 14.4 volts.
Crossovers: The M-4100 is equipped with both high-pass and low-pass crossovers. The front channels (channels 1 and 2) and the rear channels (channels 3 and 4) have separate crossovers. You can set the low-pass cutoff frequency between 60Hz and 200Hz, and the high-pass cutoff frequency between 15Hz and 250Hz. Separate 3-way switches let you select low-pass, high-pass, or full range operation independently for the front and rear channels. The crossovers have a 12dB per octave slope.
Bass Boost: The amplifier has separate bass boost controls (labeled Bass EQ on the amp) for the front and rear channels. Each rotary control is continuously variable from 0dB to +18dB and boost is centered at 45 Hz.
LED Indicators: The M-4100 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.
Connections
Removable End Caps: The end caps on the M-4100 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 4-gauge wire. (A 4-gauge amplifier wiring kit is recommended.) The remote turn-on terminal is a set screw terminal that will 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: The amplifier features two pairs of stereo RCA inputs for connecting your head unit--one pair for the front channels and one pair for the rear channels. If your head unit only has one pair of preamp outputs, you can feed all four amplifier channels with one pair of RCA plugs. (You will lose front-to-back fader capability if you connect the amplifier with one pair of RCA plugs.) The Input Mode switch allows you to select 4-channel or 2-channel inputs. The amplifier does not have preamp outputs.
Fuses: The M-4100 features two 40-amp ATC blade fuses.
The Sound Ordnance M-4100 replaces these items
Bazooka MGA4150
- 270 watts RMS x 2 at 4 ohms
- variable high- and low-pass filter (55-5,900 Hz, 12 dB/oct)
- variable bass boost (0-16 dB at 45 Hz)
JVC Arsenal KS-AR7004
- 200 watts RMS x 2 bridged
- variable high-pass/low-pass filters
- preamp- and speaker-level inputs
Polk Audio PA500.4
- 250 watts RMS x 2 at 4 ohms (4-ohm stable in bridged mode)
- variable high- and low-pass filters (50-500 Hz, 12 dB/octave)
- variable bass boost (0-8 dB at 40 Hz)
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Customer Q&A
4 questions already asked
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I have had many amps and this one is a top 5. It has awesome power and clarity. I have been running mine for nearly 4 years now and it is still operating flawless. I am running a pair of components on the front channel while bridged on the other for a 10inch sub and it sounds great.
MikeM from Indep., MO