Bluetooth Car Audio Signal Processor DSP – TPT-SP4BT

The TPT-SP4BT is a compact Bluetooth-enabled digital signal processor (DSP) for car audio systems. Designed for both factory and aftermarket installations, it allows wireless control of audio settings from a smartphone or tablet. With its intuitive app, users can adjust equalization, filters, gain, phase, and limiting in real time, delivering precise audio tuning. Ideal for enthusiasts and professional installers, this DSP provides high flexibility, improved sound clarity, and simplified system optimization without requiring physical access to the unit. Key Benefits Wireless Bluetooth control for convenient adjustments from Android or iOS devices. 15-band graphic equalizer for precise frequency shaping. Configurable crossovers (high-pass and low-pass) with Butterworth and Linkwitz-Riley options up to 36 dB/oct. Adjustable output gain from −45 dB to +15 dB for compatibility with various amplifiers. Sequencer with three remote outputs to manage amplifier and component power. Diagnostic