Pioneer TS-WX400DA Compact Active Subwoofer, 100W RMS, Built-in Class D Amp, Digital Bass Control
The Pioneer TS-WX400DA is an ultra-compact active subwoofer system designed to deliver powerful, deep bass without sacrificing valuable cargo or passenger space. Measuring just 11-7/8" wide by 4" high, this unit is engineered to fit seamlessly under most car seats, in small storage compartments, or behind truck seats.
Despite its small footprint, the TS-WX400DA packs a punch, featuring a built-in 100 Watts RMS (250W Peak) Class D amplifier for high efficiency and low current consumption (only 9.4A max). It utilizes a down-firing 9-1/2" x 5-1/2" rectangular woofer and Pioneer’s Digital Bass Control (DBC), which offers two selectable modes: DEEP (for rich, musical bass) and DYNAMIC (for strong, body-rocking bass). Full control over gain, low-pass filter (50Hz-125Hz), phase, and bass mode is provided via the included wired remote control.
Authorized dealer. Sold with full warranty.

Fast Shipping


Secure Checkout


30-Day Returns
Key Features & System Performance
- Ultra-Compact Design: At just 4 inches tall, the unit is optimized for discreet, under-seat, or tight-space installation.
- 100W RMS Built-in Class D Amplifier: Delivers powerful output while maintaining high efficiency and low power draw (9.4A max current consumption).
- Digital Bass Control (DBC): Provides two selectable bass modes (DEEP and DYNAMIC) to tune the bass output to match your music genre and vehicle acoustics.
- Down-Firing Enclosure System: Maximizes bass output and rich low-frequency reproduction from the compact enclosure.
- Wired Remote Control Included: Allows easy adjustment of gain, phase (0°/180°), low-pass crossover (50Hz-125Hz), and Bass Mode from the driver's seat.
- Versatile Input Options: Accepts both RCA line-level inputs and speaker-level inputs for compatibility with both factory and aftermarket head units.
Specifications
- Subwoofer Type: Powered/Active Subwoofer System
- Woofer Size/Shape: 9-1/2" x 5-1/2" Rectangular Cone
- Continuous Power Handling (RMS): 100 Watts
- Maximum Peak Power Handling: 250 Watts
- Amplifier Type: Built-in Class D
- Frequency Response: 20 Hz to 100 Hz (Deep & Dynamic Modes)
- Sensitivity (in-car): 100 dB
- Low Pass Filter (LPF): Adjustable 50 Hz to 125 Hz (12dB/Oct)
- Phase Control: Selectable (0° / 180°)
- Dimensions (W x H x D): 11-7/8" x 4" x 7-7/8" (300mm x 100mm x 200mm)
- Max Current Consumption: 9.4 Amps
| Package Contents |
|
|---|





