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Topic: 2 heads - one speaker? |
Jesse Harris
From:
Ventura, California, USA
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Posted 13 Aug 2003 10:46 am |
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I was wondering how that would work,
would it be possible to have 2 amp heads,
and one speaker cabinet, and then use
an A/B switch to switch between the heads?
Would there be any problems with having
speaker cables running thru an A/B box.
thanks in advance,
Jesse
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Bill Terry
From:
Bastrop, TX
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Posted 13 Aug 2003 11:21 am
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I think you'd need a 'special' AB box with relays to do the switching, instead of the little Push/Push mechanical switch.
A buddy showed me a schematic for one a while back that actually switched both heads and speakers.. i.e. either head with either cab. I forgot what I did with it.. maybe somebody else has seen it? |
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Jesse Harris
From:
Ventura, California, USA
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Posted 13 Aug 2003 4:04 pm
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| can anyone suggest what the proper unit would be? |
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Dennis Detweiler
From:
Solon, Iowa, US
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Posted 13 Aug 2003 5:35 pm
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Would it put stress on the head with no load on it?
Dennis |
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Bob Metzger
From:
Waltham (Boston), MA, USA
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Posted 13 Aug 2003 10:33 pm
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Any tube amp, if not connected to a speaker, when in 'play' mode must have a load on it otherwise you'll damage the amp. Solid state amps are different. Most techs advise against setups like this due to potential switching/standby mishaps and resulting large repair bills. If you do it, have someone who is really ultra-knowledgeable set it up for you.
Bob M. |
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Jesse Harris
From:
Ventura, California, USA
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Posted 14 Aug 2003 12:58 pm
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ok here is another take,
what about having both amp heads
connected to the speaker at the same time,
I really dont need to switch, they coud both be
on at the same time.
would that work,
impedence problems?
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Bill Terry
From:
Bastrop, TX
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Posted 14 Aug 2003 1:30 pm
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Jesse, don't do that... you'll have the outputs of each amp connected, almost sure to damage one or both.
The design I saw had relays that totally switched out the unused amp, and I think it had dummy loads that were in circuit on the 'disconnected' side. I'm still looking, I think I've got it somewhere.[This message was edited by Bill Terry on 14 August 2003 at 02:32 PM.] |
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John Rickard
From:
Phoenix (It's A Dry Heave) AZ
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Posted 14 Aug 2003 3:26 pm
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Your best bet is a stereo speaker cabinet. One speaker per amp, still conveniant with a single cabinet.
JR[This message was edited by John Rickard on 14 August 2003 at 04:29 PM.] |
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