Audiophile Precision in a 4-Channel Powerhouse
The Sony Mobile ES XM-4ES is a premium 4-channel amplifier engineered for high-resolution, ultra-clean sound reproduction. Part of the elite Mobile ES™ line, this Class AB amplifier delivers 100W x 4 RMS @ 4 ohms and up to 165W x 4 @ 2 ohms, giving you unmatched fidelity and flexibility for powering front and rear speakers, or active front-stage setups.
Built with top-tier internal components and housed in a resonance-damping aluminum chassis, the XM-4ES combines clean aesthetics with rugged durability. Gold-plated terminals, premium capacitors, and a centralized power supply layout all contribute to minimized distortion and maximum detail.
Advanced signal routing, independent 2-way crossovers, and time alignment controls offer precise tuning for even the most complex system configurations. For expanded systems, the combined Pre-Outs allow seamless integration with subwoofer amplifiers or additional channels.
🔧 Key Features
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Class AB 4-channel power amplifier
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100W x 4 @ 4Ω (RMS)
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165W x 4 @ 2Ω (RMS)
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Bridgeable: 330W x 2 @ 4Ω
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Frequency response: 10Hz – 100kHz
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S/N ratio: 115dB (CEA-2006)
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High-quality aluminum housing for heat and vibration control
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Separate adjustable high-pass and low-pass crossovers
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Preamp outputs for expansion
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Gold-plated terminals and high-grade components
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Built for Sony Mobile ES Hi-Res systems
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Dimensions: approx. 13.6" x 8.1" x 2.4"
📊 Comparison Chart
| Feature | Sony XM-4ES | 4-Channel Amp A | 4-Channel Amp B |
|---|---|---|---|
| RMS Power @ 4Ω | 100W x 4 | 90W x 4 | 75W x 4 |
| RMS Power @ 2Ω | 165W x 4 | 120W x 4 | 100W x 4 |
| Bridged Power @ 4Ω | 330W x 2 | 250W x 2 | 300W x 2 |
| Class Type | Class AB | Class D | Class AB |
| S/N Ratio | 115 dB | 105 dB | 110 dB |
| Hi-Res Frequency Support | Yes (to 100kHz) | No | Yes |
| Pre-Out Expansion | Yes | No | Yes |
⭐ 5-Star Customer Reviews
David Tran
This amp completely transformed my soundstage. Tight, clean power and so much control over tuning. Perfect for my Mobile ES build.
Erica Monroe
The clarity is unreal. It runs my front components and rear fills effortlessly. One of the cleanest amps I’ve ever installed.
🗣️ Stereo Installs Google Reviews
Stereo Installs paired this with the XS-162ES components and it’s flawless. High-end performance and great adjustability.
Can’t believe how much detail this amp brings out. The team tuned it perfectly and the car now feels like a mobile studio.
The Sony Mobile ES XM-4ES 4-channel amplifier is crafted for premium car audio setups, delivering rich, powerful sound with Class AB smoothness, Hi-Res Audio certification, and ultra-clean signal handling. It’s the centerpiece amp for high-performance front-stage or full-system configurations.
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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.