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Add EQ to amp+ (with dmixer)

Hi,

Since the standard eq settings do not provide enough of bass, I would like to add an EQ to alsa.

I've found following explanation: https://support.hifiberry.com/hc/en-us/articles/205311292-Adding-equalization-using-alsaeq

asound.conf should be changed to the following:

pcm.!default { 
 type plug 
 slave.pcm plugequal; 
} 
ctl.!default { 
 type hw card 0 
} 
ctl.equal { 
 type equal; 
} 
pcm.plugequal { 
 type equal; 
 slave.pcm "plughw:0,0"; 
}
pcm.equal {
 type plug;
 slave.pcm plugequal;
 }

What I have at the moment because I use also dmix:
pcm.hifiberry {
type hw card 0
}

pcm.!default {
type plug
slave.pcm "dmixer"
}

pcm.dmixer {
type dmix
ipc_key 1024
slave {
pcm "hifiberry"
channels 2
}
}
ctl.dmixer {
type hw
card 0
}

How should my asound.conf look like to get things working with dmix?

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