Sony XM-GS4 GS Series 4-Channel Car Audio Amplifier 70W x 4 RMS Hi-Res

Sony XM-GS4 is a GS Series 4-channel car audio amplifier designed for clean speaker power, high-resolution audio builds, and flexible 4-channel, 3-channel, or bridged 2-channel system layouts. It is a strong match for upgraded coaxial or component speakers when you want more output, better control, and cleaner dynamics than a typical head-unit amplifier can provide.

Key Features

• 4-channel GS Series car audio amplifier
• 70W x 4 RMS rated power output
• High-Resolution Audio compatible design with extended frequency response up to 100 kHz
• Flexible 4-channel, 3-channel, or 2-channel bridged system configuration
• Variable high-pass and low-pass filters for speaker and system tuning
• Gold-plated terminals and quality Sony GS Series construction
• Designed for full-range speaker upgrades, front-stage systems, or compact multi-channel installs

Ideal For

• Powering upgraded front and rear speakers
• Running a front-stage speaker system with stronger clean output
• Building a 3-channel layout with speakers plus a small subwoofer
• High-resolution audio systems where clean full-range output matters

Technical Highlights

• Rated output: 70W x 4 RMS
• Channel configuration: 4-channel / 3-channel / 2-channel
• High-pass filter: 50–300 Hz variable
• Low-pass filter: 50–300 Hz variable
• Frequency response: up to 100 kHz
• Dimensions: 272 mm x 51 mm x 202 mm

Compatibility / Installation Notes

• Amplifiers require proper power wire, ground, fuse protection, speaker wiring, signal integration, and gain / crossover setup.
• Confirm speaker or subwoofer impedance and RMS power handling before pairing this amplifier with a system.
• Professional installation is recommended for safe wiring, correct tuning, and long-term reliability.

Availability Note

XM-GS4 availability is limited. MCOR Automotive is treating this item as finite / discontinued-controlled Sony inventory. Stock is based on remaining on-hand inventory and may not be normal replenishable Sony catalog inventory.

Why Buy From MCOR Automotive

• Authorized Sony retailer for genuine Sony car and marine audio products
• Products sold by MCOR Automotive are eligible for applicable Sony manufacturer warranty coverage
• 20+ years of vehicle audio installation, system design, and product-matching experience
• Nationwide fulfillment with support from real 12-volt automotive audio specialists