ohmage help please

yorkshireviking · #1 03-15-2011, 10:27 AM

will an amp with a 4 ohm output power an 8 ohm cab without damaging either unit?
I know I wont get the full power of the amp, but I wont hurt it will it?

cheers
Joe

BobaFret · #2 03-15-2011, 10:29 AM

If the amp is designed to run at 4 OR 8 ohms you will be fine. If it only does 4ohm than I wouldn't connect it ( I've never owned an amp that didn't do both 8 and 4 ).

yorkshireviking · #3 03-15-2011, 10:32 AM

it has a 4 or 2ohm option. its the VBA 400..

Alex1984 · #4 03-15-2011, 10:38 AM

For tubes, I wouldn't do it, a bad impedance match can be bad for your transformer and power tubes.

yorkshireviking · #5 03-15-2011, 10:40 AM

cheers bud, you've answered my question.