can someone explain the whole fender extension cab thing?

Make it loud here.
Post Reply
User avatar
s_mcsleazy
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 18451
Joined: Thu Jul 28, 2011 7:30 am
Location: glasgow

can someone explain the whole fender extension cab thing?

Post by s_mcsleazy » Sun Apr 21, 2024 4:08 am

so over the years i've seen various folk say "don't use the extension cab output on old fender amps" and i've always wondered why this is the case. i'm going into the studio soon and was considering running bassman with my marshall 4x12 (8ohm) and my usual fane loaded 4x12 (also 8 ohms). the head runs at 4ohms, right? is it how the OT is wired up?
offset guitars resident bass player.
'Are you trying to seduce me Mrs Robinson? Or do you just want me to solder a couple of resistors into your Muff?'

User avatar
øøøøøøø
PAT. # 2.972.923
PAT. # 2.972.923
Posts: 5997
Joined: Sun Jan 06, 2008 8:26 pm
Location: Los Angeles
Contact:

Re: can someone explain the whole fender extension cab thing?

Post by øøøøøøø » Sun Apr 21, 2024 8:12 pm

Speaker and ext speaker jacks are wired in parallel.

Main speaker jack defaults to "short" when nothing is plugged in.

Generally speaking, if your amp wants to see 4 ohms, it can tolerate 2 ohms with no problem.

If you plug in two 8 ohm cabs to a Fender amp head that wants to see 4 ohms total load, you'll be presenting it with an optimal load.

Post Reply