Blackmore Pro Audio BB-77DSP Universal Bluetooth 6-Output Digital Signal Processor, BB-77DSP

6-channel Digital Signal Processor With Dual Volume Controls (main Volume And Subwoofer), 24-band Parametric Eq, Fully Adjustable Crossovers, And Delay Timing Alignment Advanced Csr 5.0 Bluetooth Module For Music Streaming And App Control On Your Mobile Phone Tuning Operating Software Available For Ios And Android Frequency Response: 10 Hz To 25 Khz