I have sold my 909 to someone on the WAM, he wants to use it with a studio mixer - he is a musician, just wanted to check it would match ok with impedances etc. Into the mixer he puts synths, drum machines etc.
From his messages - Mackie Mixer unbalanced output impedance 120ohms.
Also have a soundcraft mixer unbalanced output impedance 75ohms.
The Quad input impedance is 20k(omega symbol).
Any advice appreciated, don't want him to fry the amp and then claim its not working!