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Sony XM-N1004

4-channel car amplifier — 70 watts RMS x 4

Item #: 158XMN1004

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4 Reviews | 1 question - 1 answer

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Sony delivers the sound

Bored with your vehicle's sound system? Sony's XM-N1004 4-channel amplifier will add clarity and power to your system, delivering 70 watts RMS to each of your speakers, so you'll have more fun listening to music on the road. To add some low-frequency fun, you can bridge the MX-N1004 amp into 2-channel mode and drive a couple of subwoofers with 175 watts each.

High- and low-pass filters help all your speakers sound their best. Sony placed all of the MX-N1004's connections and controls on the front of the amp, for a cleaner installation with easier access to adjustments. To protect the amp from overheating and shutting down, an Auto Thermal Control lowers the power output slightly during those moments of extreme, hard driving play. Sony shows its commitment to high quality by gold-plating this amp's connectors for reliable conductivity.

Sony XM-N1004

XM-N1004 connections and controls

Product Highlights:

  • 4-channel car amplifier
  • 70 watts RMS x 4 at 4 ohms (85 watts RMS x 4 at 2 ohms)
  • 175 watts RMS x 2 in bridged mode (4-ohm stable in bridged mode)
  • CEA-2006 compliant
  • Class AB amp technology
  • front channels: selectable high-pass (80 Hz, 12 dB/octave) and low-pass filter (80 Hz, 18 dB/octave)
  • rear channels: selectable low-pass filter (80 Hz, 18 dB/octave)
More info:
  • preamp inputs
  • MOSFET power supply
  • Auto Thermal Control lowers output to prevent shut-down
  • fuse rating: 25A x 2
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 13-1/2"W x 2-1/4"H x 8-3/8"D
  • warranty: 1 year
  • 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.

Sony XM-N1004 Reviews

Average Customer Review:

4 Reviews

It complets me

Written by: Bobby007 from California on November 7, 2015

Crutchfield Customer Review (What's this?)

I got this Amp as part of a whole system overhaul. It makes my makes the sound so much better. SO glad I got it.

Pros: Fits right under the driver seat.

Cons: No Cons

Great Product

Written by: Brandan from Colorado on May 8, 2015

Crutchfield Customer Review (What's this?)

Sounds great in my Dodge pickup

Pros: Powerful

Cons: Big size

Sony XM-N1004 Amplifier

Written by: Dean from Columbus, OH on November 3, 2014

Crutchfield Customer Review (What's this?)

Purchased this amplifier to go with the Sony WX-GT90BT head unit along with 4 new speakers for my Ford F-350 Crew Cab. Excellent product and the installation was trouble free.

Pros: Great sound, more power than I need but that is exactly what I was looking for, unit is constructed very well, solid.

Cons: None.

good product

Written by: AndrewK from Barefoot Beach, FL on March 2, 2014

Crutchfield Customer Review (What's this?)

This product was exactly as expected



Hands-on research

What's in the box?

Download owner's manual

  • 4-channel amplifier
  • Two 25-amp ATO fuses (installed)
  • Four 3/4" Self-tapping screws
  • Power terminal protective cover
  • Operating instructions (English/ Spanish)
  • Warranty information

Product Research


CEA-2006 Compliant: CEA-2006 is a system of testing and measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4Ω load, with 1% or less Total Harmonic Distortion plus noise (THD+N), and over a frequency range of 20 Hz to 20 kHz (for full range amplifiers). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4Ω. CEA-2006 standards allow consumers to compare amplifiers on an equal basis. Using CEA-2006 criteria, the Sony XM-N1004 is rated at 70 watts RMS x 4 channels, with a 93 dBA signal to noise ratio.

Pulse Power Supply: The amplifier utilizes a Pulse Power Supply system to regulate the fluctuating voltage received from the car's electrical system.

Crossover: The front and rear amps have independent crossovers:

  • Front: a three position switch sets crossover to low pass, off (full range), or high pass; the crossover point is fixed at 80 Hz and the slope is 18 dB/octave when set to low pass, 12 dB/octave when set to high pass
  • Rear: a two position switch turns the low pass filter (LPF) on/off; the crossover point is fixed at 80 Hz and the slope is 18 dB/octave

Power Connections: The power, ground, and remote turn-on screw terminals are 0.35" wide. A Phillips-head or flat blade screw driver (not included) is required to tighten/loosen the terminals. A protective cover is included for the power/ground/remote terminal block.

Speaker Connections: The speaker screw terminals are 0.35" wide. A Phillips-head or flat blade screw driver (not included) is required to tighten/loosen the terminals.

RCA Input: The amplifier has two pair of stereo RCA line level inputs (front left/right and rear left/right).

Fuse: The amp is protected by two 25-amp ATO 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.

Customer Q&A

Crutchfield asked  
Why did you buy this?

High Signal to Noise Ratio [ Robert  Dec 07, 2015 ]

1 question already asked

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: Or try our online support center: [ Krissy  Mar 08, 2015 ]  Staff