Just to report back - after much fiddling about I got something that looked like an equaliser displayed in Terminal - I could move the bars up and down but it didn't alter the sound at all
I figured that it maybe was not applying the equalization to the DAC output and tried to fix it by altering the value where it says
pcm.plugequal {
type equal;
slave.pcm "plughw:1,0"; #adjust to match your alsa device you want equalized
}
but this has just broken the system completely and I'm not able to recover it
hey ho I have had fun fiddling and maybe learned some stuff but to be honest the guide has some errors and assumes a level of knowledge that I don't possess
would be really great to see an equaliser built into Runeaudio - hope the devs have not given up on the idea
Lx