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41

It should be dtoverlay=dionaudio-loco-v2

42

here’s another one from dion audio.
philips tda 1543 old school dac.

dtoverlay=dionaudio-loco


volumio@dion-tda-1543:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 1: sndrpidionaudio [snd_rpi_dionaudio_loco], device 0: DionAudio LOCO DAC-AMP pcm5102a-hifi-0 [DionAudio LOCO DAC-AMP pcm5102a-hifi-0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
43

Allo DigiOne (on RPI4)

volumio@digione02:~$
volumio@digione02:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 0: b1 [bcm2835 HDMI 1], device 1: bcm2835 HDMI 1 [bcm2835 HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 2: sndallodigione [snd_allo_digione], device 0: Allo DigiOne HiFi wm8804-spdif-0 [Allo DigiOne HiFi wm8804-spdif-0]
Subdevices: 0/1
Subdevice #0: subdevice #0
volumio@digione02:~$
volumio@digione02:~$

44

Allo BOSS2 (on RPI2)

volumio@boss2-eg:~$
volumio@boss2-eg:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 0: b1 [bcm2835 HDMI 1], device 1: bcm2835 HDMI 1 [bcm2835 HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 2: Boss2 [Allo Boss2], device 0: bcm2835-i2s-allo-cs43130 allo-cs43130-0 [bcm2835-i2s-allo-cs43130 allo-cs43130-0]
Subdevices: 1/1
Subdevice #0: subdevice #0
volumio@boss2-eg:~$
volumio@boss2-eg:~$