OPTIM™8 8-Channel Sound Processor and Amplifier with Automatic Sound Tuning Features Fill 1 Hi-Res Audio Playback (96kHz/24Bit) Intuitive Realtime Sound Set-Up with 5 Minute Vehicle Self-Tuning Manual & Automatic Sound Tuning with PC App Control Automatic Sound Tuning with iPhone App (must be iPhone 10 or newer) Anti-EQ for OEM System (Eliminates Factory EQ Curve) Auto-EQ with APVD Collection which Quickly Creates a Flat Vehicle Response Compatible with the KTX-CSP1 PC Mic Tuning Kit (sold separately) Specifications Fill 1 Output Output Channels: 8 Channels Power Ratings Power Output (@4Ω 14.4V 10% THD) CH1-6: 50W, CH7-8: 150W Power Output (@2Ω 14.4V 10% THD) CH1-6: 50W, CH7-8: 300W RCA Output (@10kΩ 14.4V 0.1% THD) CH1-8: 4Vrms THD+N High level: 2Vrms into 4Ω: ≤0.1% RCA: 2Vrms into 10kΩ: ≤0.06% S/N Ratio High level: 40k-AES17+A-weighted: ≥80dB RCA: 40k-AES17+A-weighted: ≥95dB Frequency Response Frequency Response: 20Hz-40kHz (+/-3dB) Input Voltage High level: 26Vpp RCA: 11Vpp Output Voltage High level: CH1-6: 40Vpp, CH7-8: 70Vpp RCA: 4Vrms Input Impedance High level: >50kΩ RCA: >50kΩ System Sampling Rate 192kHz/32bit Operating Voltage 9~16V Operating Temperature -20°C~+60°C Back Up Current (12.6V) ≤3mA REM Start Input High level (H1-/H1+), ACC optional REM Start Output 12V (0.2A) Dimensions & Weight (WxHxD): 220.5 x 54 x 225mm Weight: 2.4kg