4 Channel Stereo Power Amplifier
Bring your in-car audio to life
The XM-GS4 4-channel amplifier is engineered to enhance every track—including High-Resolution Audio files—thanks to an ultra-wide frequency range that extends up to 100 kHz. A range of premium circuit components work together for ultimate efficiency and pitch-perfect sound reproduction, so you can give every road trip the soundtrack it deserves.
See how it works
Fine detail across the whole spectrum
Hear thundering lows and soaring highs brought to life, with an ultra-wide frequency response that extends up to 100 kHz.
4 channels of dynamic sound
Enjoy powerful audio throughout the entire car, thanks to a 70 W x 4 RMS power output.
Hardwired for exceptional sound
Premium circuitry for optimum performance
Get the best from your in-car sound, thanks to the XM-GS4's hub of high-quality audio circuitry. Everything is engineered for minimal noise and maximum efficiency — including the heavy-duty aluminum casing, which keeps things stable for low distortion.
More sound, less noise
Our carefully selected potentiometers are highly reliable, for consistently minimal noise. The twisted-wire cable structure provides additional noise resistance from electromagnetic interference.
Total system efficiency
Schottky-barrier diodes enhance audio stability
Our premium diodes experience a lower voltage drop than conventional diodes, enabling faster switching and better system efficiency for smoother, more stable audio.
Low and high pass filters
Our high and low pass filters separate the audio range to deliver an accurate sound stage that's rich in powerful bass, clear mids, and pristine highs.
The power behind every track
Supercharge your favorite songs with this 4-channel amp
Enjoy 70 W of power from each of four separate channels, for more flexibility in setting up your ideal in-car sound stage. Using a bi-amplification connection, you can assign two channels to bass frequencies and two to high frequencies, minimizing distortion. You can also independently adjust the volume of different frequencies to find the perfect balance for each song.
Get the full setup
Combine our premium components for unrivaled acoustics
Take your in-car sound further. Our premium on-road audio products are all designed to complement each other, so you can build the perfect audio soundscape for your car.
An audio experience like no other
Discover how we redefined in-car sound quality
Our new in-car audio range — including the RSX-GS9 media receiver, XM-GS4 amplifier and XS-GS1 super tweeter — will forever change the way you listen to music in your car.
- Channel Configuration
- Max. Channel Power Configuration at 4 ohm
- 150 W x 4
- Max. Channel Configuration at 4 ohms BTL (Bridge-Tied Load)
- 350 W x 2
- Max. Channel Power Configuration at 2 ohms
- 175 W x 4
- Frequency Response
- 10-100 kHz
- 5.95 lb
What's in the Box
Warranty card, Instruction Manual