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XM-GS4 | 4-channel Stereo Amplifier
$199.99
Or
Starting
/mo
$199.99
Or
Starting
/mo
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3 Years Sony Limited Warranty
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- High-Resolution Audio compatible
- Up to 100 kHz frequency range
- 70 W x 4 RMS rated power output
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How much does the Sony XM-GS4 4-channel Stereo Amplifier cost?
MSRP is listed as $199.99. Given that, these models can go on sale from time to time, and there are several other opportunities to save on price like through their group discounts for education, healthcare and military/veterans (ID.me & Unidays) along with their free loyalty program that gives up to 5% back in points.
What is the power output of the Sony XM-GS4?
The XM-GS4 delivers a 70 W x 4 RMS rated power output. This 4-channel amplifier is engineered to enhance every track and give your road trips the soundtrack they deserve.
Is the Sony XM-GS4 compatible with High-Resolution Audio?
Yes, the XM-GS4 is High-Resolution Audio compatible and engineered to enhance every track, including High-Resolution Audio files. It captures music at a higher rate than CD for an uncompromised rendition of an artist's music.
What is the frequency range of the Sony XM-GS4?
The XM-GS4 features an ultra-wide frequency range from 10 Hz to 100 kHz. The lower end offers latitude for deep sub-bass notes, while the high end lets you feel subtle sub-harmonies for more life and realism.
Can the Sony XM-GS4 be used in different channel configurations?
Yes, the XM-GS4 supports 4-channel operation, giving you a broader range of options for how you set up your in-car sound. Using bi-amplification, you can separate bass frequencies from highs to eliminate distortion and independently adjust volume for different frequencies.
What makes the Sony XM-GS4 deliver stable, clean sound?
The XM-GS4 uses Schottky-barrier diodes with a maximum voltage drop of just 0.45 V for faster switching and high-efficiency operation without internal interference. A MOS FET transistor also delivers high output from a low-current input for responsive power delivery.
How does the Sony XM-GS4 handle vibrations?
The XM-GS4 features a heavy-duty, heat sink integrated aluminum body designed to prevent external vibrations. This helps deliver jitter-free sound that stays true to the source.
Does the Sony XM-GS4 allow you to fine-tune the sound?
Yes, the XM-GS4 has a dedicated control section located just under the external cover that lets you manually adjust aspects of your in-car sound, including resistance and power to each component. Its noise-resistant components and twisted wire structures help cancel in-car noise for a cleaner overall sound.
What warranty comes with the Sony XM-GS4?
The XM-GS4 comes with a 3-Year Sony Limited Warranty. Buying directly from Sony also includes benefits like easy returns and free shipping.
*FAQ generated on 07/23/2026. Financing, pricing and promotions may no longer apply.