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AMP2 no sound out with max2play

Hello,

I have a amp2 on a raspberry pi 3, I have 12v power on the amp to power everything. I have max2play installed, but get no sound out of the speakers.

The speakers works on other amps.

This is what i get from aplay -l:

-=-=-=-=-=-=-=-=-=-

**** List of PLAYBACK Hardware Devices ****

card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]

  Subdevices: 7/7

  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

card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]

  Subdevices: 1/1

  Subdevice #0: subdevice #0

card 1: sndrpihifiberry [snd_rpi_hifiberry_dacplus], device 0: HiFiBerry DAC+ HiFi pcm512x-hifi-0 []

  Subdevices: 0/1

  Subdevice #0: subdevice #0

-=-=-=-=-=-=-=-=-=-

If i run

speaker-test -Dhw:0,0 -c2 -twav

there is no sound, if I plug headphones into the pi i can hear the speaker test.

Not sure what to do

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