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Sony XM-GS4

4-channel car amplifier — 70 watts RMS x 4

Item # 158XMGS4

Sony's XM-GS4 4-channel amplifier will drive your whole system, sending 70 watts RMS to each of your front and...

Sony's XM-GS4 4-channel amplifier will drive your whole system, sending 70 watts RMS to each of your front and...

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About the Sony XM-GS4

Plays your music loud and clear

Sony's XM-GS4 4-channel amplifier will drive your whole system, sending 70 watts RMS to each of your front and rear speakers. Or you can switch the amp into 2-channel mode to power a couple of subs with 160 watts RMS each. This compact amp sports a hefty heatsink that gets rid of the heat that's generated when you're pushing your system hard. The XM-GS4 also uses a cooling fan, which automatically adjusts its speed for the heat it detects, ensuring this small amplifier will always produce the power that's expected.

Plays your music loud and clear

Sony XM-GS4 70W x 4 Car Amplifier

This Sony amp uses a heavy-duty transformer and premium capacitors to maximize sonic accuracy.

Sony's XM-GS4 4-channel amplifier will drive your whole system, sending 70 watts RMS to each of your front and rear speakers. Or you can switch the amp into 2-channel mode to power a couple of subs with 160 watts RMS each. This compact amp sports a hefty heatsink that gets rid of the heat that's generated when you're pushing your system hard. The XM-GS4 also uses a cooling fan, which automatically adjusts its speed for the heat it detects, ensuring this small amplifier will always produce the power that's expected.

Ready for high-resolution music

The XM-GS4 can reproduce frequencies as high as 100,000 Hz, so your high-res files and downloads will come to life with pin-point clarity. You don't exactly hear those extreme high tones, but they add ambience to your music, increasing realism and emotional impact. The XM-GS4 works its magic best when paired with a high-resolution source, like Sony's matching RSX-GS9 digital media receiver, and tweeters capable of reproducing those ultra-high frequencies, like Sony's XS-GS1 supertweeters.

More Features

You'll find all the connections on one side of the amp, which makes wiring simpler and neater. The tuning controls sit protected under a cover so they won't get inadvertently moved. You'll find separate controls for the front and rear channels on this versatile amp. You can run two speakers and a sub, for instance, and use the correct high-pass, low-pass, and subsonic filters to get the tone right. You'll appreciate the bass boost, if you need a little extra punch. Sony protects this amp with a 3-year warranty, and that says a lot.

Sony XM-GS4

Sony XM-GS4 input and connection panel

Sony's High Resolution Audio System

This audiophile-quality 4-channel amp is just one part of Sony's impressive High Resolution Audio System. It's designed to work with Sony's unique series of incredibly advanced receiver, speakers, amps, and subs that are optimized for high-res performance. Team up these products with one of Sony's high-res players, and you'll discover a new world of listening enjoyment in your vehicle.

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Product highlights:

  • 4-channel car amplifier
  • 70 watts RMS x 4 at 4 ohms (80 watts RMS x 4 at 2 ohms)
  • 160 watts RMS x 2 at 4 ohms in bridged mode (4-ohm stable in bridged mode)
  • CEA-2006 compliant
  • frequency response: 10-100,000 Hz
  • separate variable high- and low-pass filters for front and rear channels (50-300 Hz, 12 dB per octave)
  • separate variable subsonic filters for front and rear channels (6-70 Hz, 12 dB/octave)
  • separate bass boosts for front and rear channels (0-10 dB at 40 Hz)
  • preamp and speaker-level inputs
  • cooling fan
  • fuse rating: 30A x 2
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 10-3/4"W x 2-1/8"H x 8"D
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # XMGS4

What's in the box:

  • 4-Channel amplifier
  • Two 30A ATO fuses (installed)
  • 4.75" Speaker level input harness
  • 4 Self-tapping screws (M4 x 14mm)
  • Operating Instructions
  • European Guarantee Information Document

Customer reviews

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Sony XM-GS4

Crutchfield customer from Spring Hill, TN on 9/4/2019

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I replaced my XR401.4 with this amp. The design is elegant in my opinion. Simple, doesn't overheat. Have gains set to 65w each running Kenwood XR components for the time being. The only think I liked with other amps is the wire inputs using set screws and ferrels, this amp just uses screws, which is fine and holds tight but for appearance, would prefer to have set screws. The removable cover (access to gains, crossovers, etc) does extend a little past the terminals so you can easily hide the wires and not really see connections.

Pros:

Cons:

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Sony XM-GS4

bob from Cincinnati, OH on 7/29/2018

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plenty of drive and crisp and clear sound, Very satisfied

Pros: It's all good

Cons: Can't think of any

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Great clarity

KT from Garden Grove, CA on 4/8/2018

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Used in an active two way system, excellent sounding amp for the price. Easy to install package, fairly compact chassis. If the signal inputs were slightly recessed into the chassis, it would create a tidier install. They need to build a slightly more compact, lower power four channel amp for minimalist hi end systems.

Pros: fairly low height

Cons: None

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0 of 1 found this helpful

Sony XM-GS4

Marvin from Nairobi on 9/23/2017

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I like clarity and size

Pros: Clarity

Cons: Price too high

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Good Amp

Vern from Lexington, MA on 5/24/2017

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I tested it with a 4ohm load and an oscilloscope and I was able to get about 77 watts/169 watts rms output bridged before clipping. I have the front channel hooked up to two Kicker 6.5" CS series components and the rear channel bridged and driving one 12" JL Audio subwoofer. It has enough power for sound quality and zero noise problems. It also looks very nice, I'm glad that Sony decided to ditch the "Xplod" look. I had a Kenwood "Excelon" KAC-X4R hooked up before this and it had hissing noise problems.

Pros: Good looks, good power output, no noise

Cons: Need spade crimp terminals

Crutchfield response on

1 of 1 found this helpful

Easy hook-up, great sound improvement.

Stephen J. from Winfield, WV on 9/14/2016

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I like the compact size and ease of connections. Install directions were clear and diagrams were also. After experimenting with level controls I was able to balance 7 speakers and a Bazooka tube for awesome results of sound quality in my truck cab using a 12 year old Sony Explode dash unit.

Pros: Filters and balance controls, good connectors, compact size, wiring diagrams and install directions.

Cons: Not enough info on the filter and balance controls ( I had to find this on the internet ). Also the connections seemed to be in an awkward order compared to the way I wanted to lay out the wiring in my vehicle.

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Product Research

Features

Overview: The Sony XM-GS4 is a 4-channel amplifier with a wide frequency response of 10Hz-100kHz. The extended response allows you to enjoy the full-range sound of High-Resolution Audio sources, such as the RSX-GS9 Digital Media Receiver. The XM-GS4 comes with a 4-channel speaker-level input harness and mounting screws.

CEA-2006: The XM-GS4's power ratings are measured according to the Consumer Electronics Association's CEA-2006 standards. These standards allow you to accurately compare the rated power output of all CEA-2006 compliant amplifiers, even from different brands. Manufacturers who adhere to the standards can display the CEA-2006 logo on their products and packaging. CEA-2006 Specifications:

  • Power Output: 70 watts x 4 at 4Ω (with <1% THD+N)
  • Signal-to-Noise Ratio: 93 dBA (1 watt into 4Ω)

Other Power Ratings:

  • 80 watts x 4 at 2Ω (14.4V supply voltage, 20Hz-20kHz, 1% THD)
  • 160 watts x 2 at 4Ω bridged

Protection Circuitry: The amp has three protection circuits:

  • Thermal: turns the amp off when the operating temperature is too high
  • Short Circuit: turns the amp off when the speaker outputs are short-circuited
  • DC Offset: turns the amp off when it generates direct current

Controls: The amplifier's controls are located on the top, under a removable cover. There are independent controls for the front and rear channels. The rotary controls can be set with a small slotted screwdriver (not included). The amp's controls include:

  • Level: The Input Level control is rotary dial that sets the amp's input to the output of the source unit. The amp will accept a Line Level input between 0.3V and 6V, or a High Level (speaker level) input between 3V and 12V.
  • Crossover: The crossover can be set to High Pass, Low Pass, or Off (full range) via a 3-way switch. The crossover cutoff frequency can be set via a rotary control (labeled "Filter") between 50Hz and 300Hz.
  • Subsonic Filter: The Subsonic Filter sets the low end of the frequency range, and filters out extremely low frequencies that cannot be easily reproduced by speakers. With these frequencies eliminated, the amp runs more efficiently and cleanly. The rotary control can set the filter's cutoff frequency between 6Hz and 70Hz.
  • Low Boost: The amplifier's Low Boost circuitry increases the bass response around 40Hz from 0dB and +10dB.

Connections: The XM-GS4 features gold-plated connectors that are all aligned on one side of the amplifier for ease of installation. The top cover should be removed when making connections to the amp. The power and speaker output connections are screw terminals that can be tightened/loosened with a slotted or Phillips head screwdriver (not included). The amp includes the following connections:

  • Power/Ground Terminals: The power and ground screw terminals are 0.55" wide, and will accept bare wire or spade connectors. An 8-gauge amplifier wiring kit should be used to connect the amp, with a 60A fuse on the power wire within 18" of the battery.
  • Remote Terminal: The remote turn on connection is a 0.36" wide screw terminal. A small gauge wire (18 AWG) can be used for this connection.
  • Speaker Outputs: There are two pairs of screw terminals for connecting the speaker outputs. Each terminal is 0.36" wide, and will accept bare wire and spade connectors.
  • Speaker-level Input Harness: A speaker level input harness with an 8-pin Molex connector is included, allowing you to easily connect the amplifier to a factory radio or a receiver without preamp outputs.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
great amp for the money [ TERRANCE  Jan 30, 2019 ]
A
Because sony is the best and has lots of clarity. [ john  Jul 15, 2018 ]
A
smallish size with good performance specs [ KIYOHIRO  Jan 15, 2018 ]
A
features [ KYLE  Apr 06, 2017 ]
A
More than meets my requirements and your quality customer service over the phone with Ryan and Shawn sealed the deal ! Also have had good service from Sony products and wanted to take advantage of sale price. [ Stephen J.  Aug 19, 2016 ]
A
Class AB technology, cooling fan, and 3 year warranty [ Edward  May 06, 2016 ]
SHOW MORESHOW LESS

1 question already asked

Q
Hi .... this amplifire can drive infinity primus 1200 t subwoofer ???
[ Ehsan  Dec 01, 2016 ]
1 answer
A
Thanks for your question. For information on selecting the best amp for your sub 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.
[ Kenny  Dec 03, 2016 ]  Staff

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