The IQaudIO Pi-DigiAMP+ is the First HAT compliant Full-HD（192/24）HiFi quality DAC up to 2x35w Class D amplifier for the Raspberry Pi. The DigiAMP+ turns your Raspberry Pi into a standalone Hi-Fi system. Use as the basis of a retro radio restoration, build a boom box, an in-car audio player or use as the basis of a kiosk / display solution.
Designed to deliver the best audio performance from the Raspberry Pi A+/B+/RPi2, fit within the Pi's form factor and provide additional access to several of the Pi's 40way I/O signals allowing easy addition of IR sensors, Rotary Encoder or i2c devices（such as OLED screens）etc.
The HAT uses the latest Texas Instruments chipset（TAS5756m）to deliver awesome performance from a single HAT board. As with our other products you can be assured that the Linux driver support is already built-in to Raspbian Linux（using the same device drivers as the Pi-DAC+）and supported by the many software audio packages already on the market. RuneAudio / Volumio / Moode / PiCorePlayer / PiMusicBox / OpenELEC and others. The IQaudIO Pi-DigiAMP+ easily supports 24-bit / 192kHz file formats but is equally at home with lower quality MP3s bringing your music alive sonically.
Please note that The Pi-DigiAMP+ uses GPIO22 as amp-mute and when powered on is in mute state, examples are in the user docs and many software releases already support the Pi-AMP+ in the same way.
The IQaudIO Pi-DigiAMP+ connects easily to the Raspberry Pi and provides up to 2×35w stereo output to speakers.
Features
HAT compliant accessory; EEPROM, mounting holes
Full-HD audio - up to 24-bit/192kHz playback
Up to 2x35w of crystal clear amplification
No soldering required to your Raspberry Pi
Integrated hardware volume control（via ALSA）
Powers the Raspberry Pi from the Pi-DigiAMP+ power input
Linux driver support already delivered within Raspbian
AMP can be enabled / disabled via Raspberry Pi's GPIO22
Advanced ESD protection
Uses the digital I2S audio signals to reduce CPU load over USB audio solutions
