15" JBL D130F in Twin Reverb

Tele · Post by **Tele** » 3 May 2000 11:58 am

Hi

I could get a 1960s D130F 8 Ohm speaker, can I put it in a Twin Reverb Reissue?? Are the Twins 4 or 8 Ohms???

Andy

Brandin · Post by **Brandin** » 3 May 2000 12:50 pm

A Fender Twin is 4 ohm.

Tele · Post by **Tele** » 3 May 2000 1:49 pm

will I loose power, if so how much and what about tone?

Brandin · Post by **Brandin** » 3 May 2000 8:39 pm

Yes. I'm not sure how much. I believe the
JBL D-130F is a great sounding speaker.<FONT SIZE=1 COLOR="#8e236b"><p align=CENTER>[This message was edited by Brandin on 03 May 2000 at 09:42 PM.]</p></FONT>

Karl Nutt · Post by **Karl Nutt** » 4 May 2000 4:31 am

I have a 135 watt Twin Reverb that I bought a new MOJOTONE Vibrosonic cabnet for. It's loaded with a JBL D-130 4 ohm and sounds GREAT! Lighter than 2 12's too!!! (Not as heavy???)

Rich Paton · Post by **Rich Paton** » 6 May 2000 5:07 pm

Try the D130F in an extension cabinet, and connect the 12's in the twin in series. This gives an overall load of 8ohms + 8ohms (16ohms)in parallel with 8ohms (5.33ohms overall impedance),which is perfectly suitable as a load on a 4 ohm amp. Make sure all speakers are in phase. You can connect a 1.5v "D" cell to the speaker lead(s) ~momentarily~, to observe the direction of cone travel, to check this.

Bob Metzger · Post by **Bob Metzger** » 8 May 2000 2:26 am

You could change the output transformer to one designed for 4 x 6L6 and an 8 ohm output (like a Vibrosonic Reverb). Also, Twins sound great for steel with 6550's but you have to add a pretty big filament transformer if you use 6550's to keep the amp happy.

Bob