Technics SH-AC300, Digital Sound ProcessorCondition:* Used, Tested Fine. Powers Up, Unable To Test Further. * Sold As-Is. As Pictured.. Additional Notes:* Output Voltage/Impendance: 2V (@ 0 dB)/1 k* Input Impendace: Line: 22 k Coaxial: 75 * Frequency Response: Front L/R, Center, Surround L/R (Large): 20 Hz-20 kHz, 1dB* Delay Time: AC-3 Center: 0-5ms AC-3 Surround L/R: 0-15ms Dolby Pro Logic Surround L/R: 15-30ms* Total Harmonic Distortion Front L/R (1 kHz, 0 dB, PCM): 0.007%* Dynamic Range: 90 dB* S/N (IHF A): 96 dB* Load Impedance: More Than 10 kTechnics SH-AC300