Is it the right Ohms?

Telover · Not So Newbie Joined: 18 Nov 2007 Posts: 6

I own a Fender Champion 600 I swapped the tubes and the speaker and it sounds simply great. It's 6 Watts and 4 Ohms. The speaker I've put in it's a 6" Weber ceramic. I thought to build an external cabinet for the giant and I bought solid pine wood and a 8" Jensen in Alnico.
Now the problem is: the power transformer it's 4 Ohms and both the speakers are 4 Ohms. I've read many stuff about this subject but I'm not a guru about electrics, so I'd like to know if I can connect both the speakers to play them at same time.
Thank you.
Cool

tw001_tw · Posted: Sun Nov 18, 2007 12:39 pm Post subject:

Telover - If I understand you correctly, no, you can't. To hook up two
4 ohms speakers, the total impedance will end up being either 2 ohms or
8 ohms depending on how you wire them up.

in parallel 4ohm & 4 ohm = 2 ohm
in series 4ohm & 4ohm = 8 ohm

to get 2 speakers and maintain your desired 4ohm load, get either
2 8ohms speakers, or 2 2ohms speakers (I'm sure the 8ohms will be easier
to find Cool

)

Telover · Not So Newbie Joined: 18 Nov 2007 Posts: 6

Thank you, tw. It seems to be a *Holy Censor, Batman* difficult thing. If I put two 8 Ohm speakers, I won't be able to play the amp without the external speaker connected due the fact I'll have an 8 Ohm one on a 4 Ohm power transformer, right? I'll probably play the amp always with the external cabinet connected because it's small, anyways, but who knows...

tw001_tw · Posted: Mon Nov 19, 2007 6:44 am Post subject:

Telover · Not So Newbie Joined: 18 Nov 2007 Posts: 6

I don't build a bigger combo because I'm very satisfied with the amp and I don't want to lose the nice look and the rest.
Is there an output tranformer with different impedances you can chose time to time? That would be great so I could use the external cab or not depending on my needing.
Anyways it's not something mandatory, I mean the whole stuff it's pretty small so I can easily keep it connected together all the time.

I wanted to post the link to the amp but I've read the rule about posting links for the new users; anyways it's on Fender website.

tw001_tw · Posted: Mon Nov 19, 2007 11:10 am Post subject:

You could go from this:
http://www.mercurymagnetics.com/pages/specials/fender/Champ600kit/C600-01.htm
$250 full on mod(s)

Or, maybe something along the lines of a Hammond 125BSE.? which would
run about $40 after shipping. But I can't promise you the mounting holes
will match up... you'd also need to get either an impedance selector
switch or wire up an additional speaker jack.

Mod on!

Telover · Not So Newbie Joined: 18 Nov 2007 Posts: 6

Cool. But *Holy Censor, Batman* you, pal. I'll finish with adding an external cab to this one, and to get another one to modify with the Mercury mod #Mad

Telover · Not So Newbie Joined: 18 Nov 2007 Posts: 6

What a bad new today. I just found out than Weber doesn't make any 6" speaker 8 ohm. They're only 4 ohms. So now I'd have a 8" Jensen alnico 8 ohm and a 6" ceramic 4 ohm. They won't match at all.
I would like to keep the original 4 ohm transformer.
This thing is becoming a dilemma.