Power supply: 6-26Vdc ( >=3A is recommend)

GPIO used : LRCK - IO19, BCK - IO18, DATA - IO21, IR - IO26, AMP mute - IO22

Analog audio output level: 2V RMS

Headphone max output power: 142mW at 16Ω

Amplifier max output power: 2×30W at 8Ω BTL Load at 24Vdc

Resolution/Sampling Rate: upto 24bit / 192KHz (Raspberry-Pi I2S)

PCB size: 87 x 56mm

Full-HD audio – up to 24-bit/192kHz playback

Audiophile TI Burr Brown 32-bit/384kHz DAC (TI PCM5122)

Class leading audio; 112db SNR, and THD of 0.0019%

Built in High quality Class-D stereo audio amplifier (TI TPA3118D2)

Up to 2×30W Into a 8-Ω BTL Load at 24Vdc

Capable of driving 4 Ohm speakers (also works with higher impedance speakers)

Built in high quality audio headphone amplifier (TI TPA6133A)

Uses the Texas Instruments ultra-low-noise voltage regulator (output noise< 10μVRMS)

Uses the Texas Instruments high efficiency step-Down DC converter (up to 95%)

6V~26Vdc converted to 5.1V, 3A to power the Raspberry-Pi

Uses the genuine ALPS RK163 series potentiometer for smooth volume adjustment

Built in high quality IR sensor (Vishay -the world's leading supplier of infrared receivers)

Onboard RCA connectors

Onboard 3.5mm stereo headphone jack

Onboard speaker & power screw terminals

Onboard 4pin PH2.0 connector allowing to connect a external lighted power switch to control power

Onboard gold-plated high-current DC power jack (5.5x2.5mm)

Uses the digital I2S audio signals to reduce CPU load over USB audio solutions

Connects directly to the Raspberry-Pi   - No wiring required

Powers the Raspberry-Pi   - no additional power supply

Reserved Raspberry-Pi GPIO pin header (2x13Pins)

Pop-noise can be improved by enabling GPIO control

AMP can be enabled / disabled with jumper link