Sony XS-W124GS 12" GS Series Car Subwoofer – 1800W Peak, 420W RMS, Single 4Ω, Long-Excursion Bass

Sony XS-W124GS is a 12-inch GS Series subwoofer built for tight, high-power bass in sound quality (SQ) and SPL-leaning car audio builds. With high thermal handling and a rigid cone assembly, it’s designed to stay controlled at volume while still digging deep in a properly sized sealed or ported enclosure.

This is a single 4-ohm subwoofer rated at 420W RMS (CTA-2015) with a high peak rating, making it a strong match for a dedicated mono amplifier and a clean signal chain. Sony’s GS design focuses on output plus accuracy—ideal when you want loud bass that doesn’t turn into mush.

Key Features

• 12" GS Series subwoofer for deep, controlled low-end
• Single 4Ω voice coil
• 420W RMS power handling (CTA-2015)
• High peak power handling for dynamic bass hits
• Engineered for sealed or ported enclosures
• Paper cone with PP (polypropylene) cap and rubber surround

Technical Specifications

• Brand: Sony
• Series: GS Series
• Model: XS-W124GS
• Size: 12" (30 cm)
• Impedance: 4 Ω (single voice coil)
• Power Handling (RMS / CTA-2015): 420 W
• Power Handling (Peak): 1800 W
• Frequency Response: 30 Hz – 500 Hz
• Sensitivity: 83 dB
• Mounting Depth: 143.4 mm (5-3/4")
• Cutout Diameter: 280 mm

Enclosure Recommendations

• Sealed (net): 25.8 L (0.91 cu.ft)
• Ported (net): 32.78 L (1.16 cu.ft) with 90 mm (3-5/8") port

Ideal Applications

• Single-sub sealed builds needing punchy, accurate bass
• Ported builds wanting more output and low-end extension
• Daily-driver systems with dedicated mono amplification
• Upgrading factory “sub” systems that can’t keep up

What’s Included

• Sony XS-W124GS subwoofer
• Documentation

Compatibility / Installation Notes

• Confirm impedance, amplifier power, enclosure type, mounting depth, and available space before ordering.
• Subwoofers require a properly matched amplifier, enclosure, wiring, and installation hardware. These items are sold separately unless specifically included.
• Use the MCOR Fit Guide or the chat button on this page if you need help matching this subwoofer to a vehicle or system plan.

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