Volumio hardware support for RaspberryPi

While thinking about which RaspberryPi audio hat to buy next, I grabbed the list of Volumio supported dacs and googled them for you:

adafruit-max98357
-  $6 generic i2s dac and class-d amp, not designed for Raspi

allo-boss-dac
- $65 i2s dac with 2 x RCA audio out

allo-digione
- $99 board with BNC and RCA SPDIF out

piano-dac
- $27 i2s dac with 2 x RCA, 3.5mm phone jack

piano-dac-plus
- not sure what this is

 applepi-dac
- predecessor of $270 PecanPi ?

 fe-pi-audio
- $16 SPI codec with RCA jacks for Line Out and 4 pin screw terminal for Speaker Out.

hifiberry-amp
- a discontinued board with 2x25W output power

hifiberry-dac
- a discontinued board?

 hifiberry-dacplus
- $20-$35 dac with 2x RCA

hifiberry-digi
- 23€  S/PDIF output, TOSLINK + RCA

hifiberry-digi-pro
- 35€ I2S to S/PDIF output

hifibox-dac
- $26 3.5mm audio jack

 iqaudio-dacplus
- previous version of NEW Pi-DAC ?

 iqaudio-digiplus
- a sold out / discontinued board?

 iqaudio-amp
- previous version of NEW Pi-DigiAMP+ ?

 justboom-amp
- £60.00 add on board for justboom-dac

 justboom-dac
- £35 add on board for justboom-digi

 justboom-digi
- £30 SPDIF Toslink + RCA

mamboberry-dac
- €60 – €120 not sure what, but they say it's high quality
nanosound-dac
- displays and all but unclear what outputs
502-dac
- $109 I2S dac with analog and digital out

502-dac-pro
- not sure if same as above
503hta-hybrid
- a tube amp

phat-beat
- stereo audio and leds

phat-dac
- 13£ I2S Line out stereo jack

 picade-hat
- specialty dac for retro gaming

pisound
- 99€ midi interface

raspidacv3
- not sure which one this is

 rpi-dac
- headphone out

soekris-dac
- not sure which one this is

- 13£ on board speaker

st400-dac-amp
- 45€ I2S DAC with 2x 20W and RCA stereo, 3.5mm 

 taudac
- hobby project I2S DAC with stereo RCA out

terraberry-dac2
- previous version of 220€ Terra-BerryDAC 2+ ?

 es90x8q2m-dac
- not sure which one this is











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