A standalone DSP that covers all the bases: 8 output RCA channels, 6 RCA inputs, 8 high-level inputs, coax SPDIF input, optical TOSLINK input, 3.5mm jack AUX input, Bluetooth AptX HD input, digital remote control for volume, sub level, preset selection, input selection, mute trigger. The DSP supports the following on every output channel: High pass, low pass and band pass crossovers (Linkwitz Riley, Bessel and Butterworth) up to 48 dB/oct 31 band fully parametric EQ with +/-15 dB correction Time delay up to 15 ms for time alignment, selectable in ms, cm or inches, optional linking of multiple channel time delays Phase rotation from 0 to 360 degrees with a 1 degree resolution for phase alignment, optional linking of multiple channel phase adjustments Level correction from 0 to -40 dB, optional linking of multiple channel levels Various mixing modes for mixing more than one input channels into one output channel Internal pink noise generator to test each individual output channel Configuration software for Microsoft Windows: DOWNLOAD HERE Manufacturer provided specs: Power supply voltage: 9-15 VDC Idling current: 0.5A Switched off without DRC: 5mA Switched off with DRC: 4mA Remote IN voltage: 6-15 VDC Remote OUT voltage: 12 VDC (130mA) Output signal THD @ 1kHz, 1V RMS: 0.0004% Bandwidth @ -3 dB: 20Hz-22kHz Master input: 98 dBA Aux input: 96 dBA Channel separation @ 1kHz: 90 dB Input sensitivity (high-level in): 2-15V RMS, 10 kOhm Input sensitivity (AUX in): 0.2-5V RMS, 22kOhm Max output level RMS @ 0.1 THD: 4V Inputs: 6xRCA analogue, 1x RCA SPDIF coax, 1x 3.5mm aux, 1x TOSLINK SPDIF, 8x high-level, Bluetooth 5.0 AptX HD module Outputs: 8xRCA analogue Control connections: 1x USB 1.1/2.0, wired remote (DRC) 8 full setup presets Auto on via high level signal detect or remote input What's included: 1x DSP unit 1x Bluetooth 5.0 AptX HD module 1x Digital Remote Control 5m USB A-B cable 5m DRC cable 1x Power supply wiring harness 1x High-level input harness Mounting brackets and fasteners 1x Instructions