avt50 112 external speaker output?

[dave]

Hello!
I just picked up an avt412 cabinet. I have the avt50 112 combo that only has one speaker jack on the back.
Question? any way to wire this so I can still use the speaker in the combo as well as the 412 cab? Seems a waist to not use it...
The cab is 8 ohms and the combo speaker is 4 ohms...

Any suggestions?
Thanks!

[fixr1984]

Cant you just add another speaker jack in parallel?

[dave]

looks like it...I found on the board there is an empty place for what appears to be another speaker out jack.

Just so I have this completely clear:

If parallel you add up the speakers ohms and divide by number of speakers, correct?

So in my case I have a 412 cab @ 8ohm + the stock 4ohm speaker in the combo. 8 ohm + 4 ohm =12 ohm/2 = 6 ohm total. In which case I am safe because it is more than 4 ohm. Am I correct ?

Thanks!

[fixr1984]

8 ohm and 4 ohm in parallel would be 2.67 ohms.

[dave]

good thing I asked! :] ohms confuse me -obviously.
Thanks Fixr...
Here is my plan then:
I'm going to put a 8 ohm vintage 30 in the combo.
Then I would be at 4 ohm, right?

[fixr1984]

Yes, an 8 ohm in parallel with another 8 ohm would be 4 ohms.

[dave]

Well I put the veteran 30 8 ohm in-sounds great!

As for connecting my 412 cab along with the internal speaker - could I use this, a mono 1/4" y adapter?

www.audiogear.com/cgi-bin/shopper.cgi?key=ADPT2QMFQMM&preadd=action

[fixr1984]

Glad you like the speaker choice. Yes the connector will work, however i would be worried that its not for a speaker application. For a speaker connection you always want to have speaker cable where both conductors are the same size unlike an instrument/audio cable where the center conductor is smaller that the outer.