DSP812U 12-Channel Processor – The OEM System Surgeon

✅ 8 High-Level + Optical/USB/BT 5.1 Inputs：

· 4-10V input range for BMW/Mercedes factory systems

· 0.5-4V RCA output with ±0.2dB channel precision

✅ Triple-Core DSP (CIRRUS+AKM)：

· 24Bit/192KHz processing with 85dB studio-grade SNR

✅ 31-Band EQ & 15ms Alignment：

· 0.5-9 Q value surgical control for multi-zone staging

✅ Lossless Bluetooth/USB Playback：

· Direct FLAC/APE decoding via smartphone/USB drive

✅ LCD Command Hub & Greensound App：

· 10 pro presets with iOS/Android/PC cross-control

✅ 0.35A Standby & Wide Voltage：

· 9-16V compatibility for car/home dual applications

Specification	DSP812U
Input	8 Ch High Level/2 RCA/Optical/USB Audio/USB Disk/BT
Input Voltage(Max)	High Level4-10Vrms, RCA 0.5-4Vrms
Output	12 RCA
Output Voltage (Max)	RCA-1Vrms
Output Gain	NA
Optical In	YES
Coaxial In	NA
Amplfiier type	NA
Power Output	NA
(AD & DA) Signal Convertion	CIRRUS LOGIC SMART HIFI 3-core DSP CS47L35，CS4344,AKM4619
Sampling Rate	24Bit/192KHz ADC/DAC
EQ/Delay	31Band EQ/ 15ms
Frequency Range	20Hz- 20Khz
Q Value(Slope)	0.5-9
EQ Gain	-18.0dB +12.0dB
Filtering	Butter , Bessel, Link
Filtering Crossover point	20Hz- 20Khz
Filter slope	6dB/oct -48dB/Oct
Phase	0-180
Time Alignment (delay)	15ms
Preset	10
Frequency Respone	20-20kHz
Signal to Noise - RCA	85dB
Signal to Noise - Power Amp	NA
Input Resistance	20kΩ
Low level output Resistance	680Ω
Static Current	0.35A
Operating Voltage	9-16V
Working Current Range	0.5-1A
Temperature resistance	NA
Bluetooth	Yes
Bluetooth Version	5.1
USB Audio Built in	Yes
USB DISK	mp3, wma,wav, m4a, aac and lossless format FLAC, APE
Remote	LCD
PC Connection	yes
PC Software	yes
Android App	yes
IOS app	Yes, App Store(Provide by Greensound)
Auto Tuning	NA
REM Input	3.5V
REM Output	0.1A
Over heat protection	NA
Over Load Protection	NA
Working Indicators	Yes

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