Fender Ext. Cab Question

[ademus]

I just pulled a Fender 2-12 cab apart and discovered that it contained two 16 ohm G12T-75s wired in series.

That would equate to a 32 ohm load. Right?

What guitar amps need to see a 32 ohm load?

Thanks,
Duncan McRae

[Witek]

Never heard of that, whoever changed the wiring in the cab didn't know what they were doing...

[Old Tele man]

...sounds like a "do it yourself" speaker change done wrong, to me.

[John Phillips]

The only sensible reason I can think of would be if you had a 16-ohm-only amp and wanted to run two cabs.

I'd more likely put it down to the 'didn't know what they're doing' theory, though...


A couple of years ago I bought an old Hiwatt cab with four 16-ohm speakers (two original, two replaced)... the two originals were wired in series, out of phase; one of the replacements was in parallel with those two; and the other was in series with all three others, in phase with two of them.

If you're feeling bored, you can calculate the total cab impedance, and get bonus points for working out the power distribution to each speaker .

The amazing thing is that the cab sounded almost normal, and the speaker which was taking most of the power (and was the lowest-rated too) didn't blow.

[ademus]

Thanks guys. I bought it off some tweaker who "customised" all his stuff. So, I'm sure the 'didn't know what they're doing' theory is correct.