Amazon.com: Sony XM-GS6DSP GS Series 6/5 Channel Class-D Bluetooth Amplifier with DSP : Electronics
Power Acoustik® Razor Series Rz5‐2500dsp 2,500-watt-max 5-channel Class D Amp With Dsp, Bluetooth®, And Remote Gain Control : Target
JL Audio VX1000/5i 1000W Max 5-Channel Class-D Amplifier with Built-In DSP
Amazon.com: Power Acoustik RZ5-2500DSPB 5 Channel Class D Car Stereo Amplifier with DSP and Bluetooth, Vehicle Full Range Amp and Subwoofer Ch, App Control : Electronics