Sony Mobile ES XS-W124ES 12" 500W RMS 4Ω Subwoofer (Single)

Sony XS-W124ES is a 12-inch single voice coil subwoofer designed for vehicle audio systems that need controlled low-frequency output and 4-ohm amplifier matching. It is built for custom sealed or ported enclosures and uses Sony Lightweight Rigid Cellular Honeycomb diaphragm construction with long-excursion mechanical design.

Key Performance Features

• 12-inch raw subwoofer driver for custom enclosure use
• 500 watts RMS power handling
• 2000 watts peak power handling
• 25 Hz - 700 Hz effective frequency range
• 83 dB ±2 dB SPL sensitivity (1 W, 1 m)
• Lightweight Rigid Cellular Honeycomb diaphragm for stiffness and reduced distortion
• Separated Notch Edge rubber surround for controlled cone movement
• Dynamic Air Diffuser and five-beam frame design for airflow and cooling

System Architecture

• Type: Raw subwoofer driver
• Application: Low-frequency bass reproduction in custom car audio systems
• Nominal Impedance: 4 Ω
• Voice Coil Configuration: Single Voice Coil (SVC)
• System Role: Daily-driver or sound-quality-focused subwoofer installation
• Recommended Enclosure Types: Sealed or ported

Power Handling / Output

• Continuous (RMS): 500 W
• Rated Power: 400 W
• Peak: 2000 W

Driver / Construction

• Lightweight Rigid Cellular Honeycomb diaphragm
• Rubber Separated Notch surround
• Ferrite magnet structure
• Progressive Height Rate spider
• Double spider design
• Gold-plated spring terminals

Installation Use Cases

• Custom sealed enclosure builds for controlled low-frequency response
• Custom ported enclosure builds for higher-output bass systems
• Suitable for 4-ohm mono amplifier pairings matched to the subwoofer's power handling
• Requires a properly designed enclosure, amplifier, and installation accessories sold separately unless otherwise noted

Technical Specifications

• Brand: Sony
• Series: Mobile ES
• Model: XS-W124ES
• Component Type: Subwoofer
• Size: 12" (30 cm)
• Impedance: 4 Ω
• Voice Coil Configuration: Single Voice Coil
• Effective Frequency Range: 25 Hz - 700 Hz
• Sensitivity: 83 dB ±2 dB SPL (1 W, 1 m)
• Power Handling (RMS): 500 W
• Power Handling (Peak): 2000 W
• Rated Power: 400 W
• Magnet Material: Ferrite
• Weight: 12.13 lb / 5.5 kg

Identifiers & Packaging

• Manufacturer Part Number (MPN): XS-W124ES
• UPC: 027242923751
• Sold As: Single (1 subwoofer)
• Included Components: One subwoofer, detachable gasket, and 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