STX Audio STX10SD2 10-Inch Shallow Subwoofer

The STX Audio STX10SD2 is a 10-inch shallow-mount car subwoofer designed for bass upgrades where conventional subwoofers may be too deep. Its compact mounting profile helps make it a practical option for limited-depth enclosures and space-conscious vehicle installations. It is intended for listeners who want to add low-frequency output without dedicating a large amount of cabin or cargo space.

With a stated 750-watt RMS power rating and 1,500-watt maximum power rating, the STX10SD2 is built for use with a properly matched external amplifier. Its 25 Hz to 500 Hz frequency-response range is specified to cover deep bass through upper-bass frequencies. Final output and tonal balance will depend on the enclosure, amplifier settings, vehicle acoustics, and installation quality.

The subwoofer uses dual 2-ohm voice coils, giving installers multiple wiring possibilities when designing a system around compatible amplification. This configuration can be useful when matching the subwoofer to an amplifier's supported load and power range. Confirm the final impedance at the amplifier before wiring, particularly when installing multiple subwoofers.

A shallow 3.23-inch mounting depth is central to the STX10SD2 design. This reduced-depth form factor can support installations in compact custom enclosures, behind-seat locations, or other applications where mounting clearance is limited. The specified 9.29-inch cutout and 10.94-inch overall diameter should be checked against the intended baffle before installation.

The STX10SD2 uses a die-cast aluminum basket intended to provide a rigid foundation for the driver assembly. It can serve as the bass component in a custom system paired with an amplifier, enclosure, wiring, and crossover setup selected for the vehicle. For a complete upgrade, use a suitable enclosure and configure low-pass filtering and amplifier gain carefully.

Key Features

• 10-Inch Shallow Subwoofer: Adds bass while requiring limited mounting depth.
• 750W RMS Rating: Supports amplifier matching for sustained power handling.
• 1,500W Maximum Power: Indicates the stated peak power-handling figure.
• Dual 2-Ohm Voice Coils: Provides flexible wiring options for compatible amplifiers.
• 3.23-Inch Mounting Depth: Helps fit compact and restricted-depth installations.
• Die-Cast Aluminum Basket: Provides a rigid structural frame for the driver.

Design & Installation

The STX10SD2 combines a shallow driver profile with a die-cast aluminum basket. Its specified overall diameter is 10.94 inches, while the baffle cutout requirement is 9.29 inches. These measurements should be verified against the enclosure and available vehicle clearance before cutting or mounting.

This is a passive subwoofer and requires an external amplifier, speaker wiring, and a compatible enclosure; these items are not specified as included. Match the amplifier to the final voice-coil wiring load and use the 750-watt RMS rating as the primary power-handling reference. Set crossover and gain controls conservatively to suit the enclosure and avoid audible distortion.