Kemper PowerRack through Marshall 1960B Cabinet ... Ohmage? How do you set on the Kemper?

    Hey guys ...

    My Marshall 1960B cabinet is a standard 16 ohm Marshall cab. Does the PowerRack automatically adjust its output to match the connected cab, because I cannot find any output menu or switch on the back to switch the output between 8-16 ohm?

    Looks like with a 16 ohm cab I'll be getting 300w from the PowerRack, which should be fine because I'm driving 4 75w celestions. However, If I switch to an 8 ohm cab with 4 75w speakers (looking at a Mesa cab), will this cause problems and blow the speakers?

    Thanks!

    Just use the same output from the KPA and take note of what ohm rating the cab is when calculating the output (600w at 8 ohm; 300w at 16 ohm) - there is no setting of ohm-age on the KPA itself.

    If it's any comfort to you, I was initially worried about using the PowerRack with my 16ohm/120w 4x12" (lowest rated speaker is a 30w G12H30), but all seems okay so far if I'm careful with the master output level on the KPA - I think that it would be easy enough to hear if the cab is struggling!