Re: Omg ohms wtf!?
Your right, there is lot's of ramble about this.
What I can tell you in basic terms without adding confusion - Marshall recommends that you always run a matched load on your amp.
In a one cab scenario, the impedance (measured in ohms) is one to one.
Example -16 ohm cab, set your head to 16 ohms as well.
In a two cab scenario - on a parallel tap (like your Marshall) you divide the load to find the total.
Example - Two 16 ohm cabs equals an 8 ohm total load on your amp. Set the amp to 8 ohms. Two 8 ohm cabs would equal a 4 ohm total load.
Solid state gear (especially things such as pre-amps and mics that you mentioned) are a totally different animal.
I hope this helps.
TwinACStacks "BTW: I AM going to own a 6100 sometime. Then I'm gonna mod the EVER-LOVIN' SHIT out of it....Just to piss these guys off.
Marshalls a Mesa and mostly Les Pauls