QBSTA 11-Inch Spare-Tire Powered Subwoofer System with 300W RMS Amplifier and Remote Bass Control

The QBSTA is an 11-inch powered subwoofer system that mounts inside a compatible vehicle spare tire and includes a built-in Class D amplifier.

Key Features

• Built-in amplifier delivers 300W RMS and 900W peak power.
• Hub-mount design fits compatible spare tires installed inside a vehicle with a removable post.
• Top-mounted controls include low-pass, bass-boost, subsonic and phase adjustments.
• Signal sensing supports automatic turn-on from a compatible input.
• Wired remote bass-level control is included.
• Die-cast aluminum enclosure uses a polypropylene cone and rubber surround.

Specifications

• Brand and model: NVX QBSTA
• Driver size: 11 inches
• Power: 300W RMS; 900W peak
• Amplifier: Built-in Class D
• Frequency response: 30–150Hz
• Low-pass filter: 50–180Hz, 24dB/octave
• Bass boost: 0–12dB at 50Hz
• Subsonic filter: 10–50Hz
• Phase adjustment: 0–180 degrees
• Dimensions: 14.17 inches wide × 4.72 inches deep
• Installation power wire: 8 gauge required
• Included: Wired remote bass-level control