How to use multimeter

Dewald,
Thanks for the detailed response, still I wanted to clarify a few points;
When you say: "Disconnect speaker and connect the MM to ch. A."- wouldn't it be a problem to have an amp running with no load on one channel and a load (speaker B) connectd to the other.
I guess you are saying it's impossible to measure an output voltage with the speaker connected.
Thanks again.

Hi there,

It is not impossible to measure voltage with a load connected - it only gives you a more accurate voltage measurement with no load or a shunt-load. Remember - as the frequency changes the IMPEDANCE of the speaker also changes.
Also remember to disconnect all other channels - both source cables and speaker-loads - all other channels (exept the one that you're measuring) must be 'mute'.
This is the defacto way to measure channels.

I would recommend connecting the shunt-resistor. Go to a radio-shack and let the technitian make on up for you. A 8 ohm, 100 watt resistor (with heatsink) with two short leads soldierd to it and the ends of the leads also soldierd. Use it in parallel with the Multi-Meter.

Sorry - My description might have been a bit skimpy.

Kind regards,
Dewald Visser

Dewald,
Thanks again