? for Sam Marshall

George McLellan · Post by **George McLellan** » 16 Apr 2006 9:07 am

I have a 65 Fender Twin Reverb RI w/2 12" speakers. The manual says the amp is 4 ohm. Will using the extention speaker jac with a 8 ohm speaker plugged into it cause any problems?

Geo

Lee Baucum · Post by **Lee Baucum** » 17 Apr 2006 2:44 pm

Bump up for George.

I'll bet one of our resident Forum techs could answer this question.

Lee

Craig A Davidson · Post by **Craig A Davidson** » 17 Apr 2006 4:41 pm

George, with the original speakers in the amp, it already has a 4ohm load. Another 8ohm load would be 8 plus 4 divided by 3 speakers which makes 3 ohms I think. i was once told on SS amps you can drop the load way down to almost nothing, but not on a tube amp. Just the 8 ohm load would be better. Or hook up one twelve and the 8 ohm external speaker.

George McLellan · Post by **George McLellan** » 18 Apr 2006 2:20 am

Lee, thanks for the bump.

Craig, I see what you mean, using the 15" alone. I hadn't thought of that. I also have two 12's in another cabinet and they work great together with the two 12's in the amp (= 4x12's). I wanted to try a 15" to see what kind of differance it would make ie: some of the people have been doing away with 12's in their amp and going with one 15", but didn't want to chance screwing up anything if I plugged it in.

BTW, wish I could make it down for the QC, it looks like it's going to be great, but I have other commitments. I sure had a great time in Wisconsin Rapids. Hope to see you and the rest of the folks (& bannana guy

)in Hinckley.
Geo