The Soundstream BX-15 is a digital bass reconstruction processor designed to restore and maximize low-frequency bass response in car audio systems. Using digital bass restoration technology, the BX-15 recreates missing bass harmonics commonly lost in compressed music files, factory radios, and streaming audio. It’s a popular budget-friendly alternative to the AudioControl The Epicenter for daily-driver and SPL-style systems. Features & Highlights Digital bass reconstruction technology Restores low-frequency harmonics lost in recordings Dash-mounted remote bass control included Parametric bass EQ controls Adjustable sweep frequency (27Hz–63Hz) Variable bandwidth adjustment PFM subsonic filter Balanced inputs for reduced noise PWM high-headroom power supply Bass restoration indicator display High-voltage output signal capability Best Uses The BX-15 works especially well for: Factory radio integration systems Subwoofer amplifier setups Daily-driver bass builds Hip-hop, EDM, rock, and bass-heavy music Restoring bass from compressed streaming services Systems needing stronger low-end impact without replacing the head unit Key Specifications Frequency Response: 10Hz–100kHz Output Level: 13.5V Signal-to-Noise Ratio: 130 dB Sweep Frequency Range: 27Hz–63Hz THD: 0.003%