Can you wire two amps together so that they can use the same speaker

leevc5

New member
I have a 5f1 (5-10 Watt tube amp) and a 40 Watt solid state in the same cabinet. The initial plan was to use them independently as the situation called for. Now I'm getting greedy of course and wonder if I can use them both together.

Any help will be much appreciated.
 
Re: Can you wire two amps together so that they can use the same speaker

Using the same speaker at the same time - NO .
 
Re: Can you wire two amps together so that they can use the same speaker

Only if you ran the preamps into a line mixer to send to ONE power amp to power the speaker.
 
Re: Can you wire two amps together so that they can use the same speaker

It probably won't fry the speaker, it'll probably fry one of the amps, you'd be basically wiring the 2 power amp outputs together.
 
Re: Can you wire two amps together so that they can use the same speaker

It probably won't fry the speaker, it'll probably fry one of the amps, you'd be basically wiring the 2 power amp outputs together.

Can't you build some kind of diode gizmo that would keep the individual amps output isolated from each other. I guess the other option would be to build a A/B switch that was super fast. I mean so fast that it would seem like the amps were directly wired to the speaker without a switch.
 
Re: Can you wire two amps together so that they can use the same speaker

Can't you build some kind of diode gizmo that would keep the individual amps output isolated from each other. I guess the other option would be to build a A/B switch that was super fast. I mean so fast that it would seem like the amps were directly wired to the speaker without a switch.

It would be easier and cheaper to get another speaker/box.
 
Re: Can you wire two amps together so that they can use the same speaker

It would be easier and cheaper to get another speaker/box.
Duh!!! You are exactly right! I don't know why I get caught up in these stupid loops when the simple answer is right in front of me. Thanks for the shake into reality.

But then again...you could send the output of each amp into a computer sound card digitize it, mix the two and send the output to a third amp that would be wired to the speaker...or you could just buy another speaker and save all the hassle and cost of computer hardware, software and a third amp.
 
Re: Can you wire two amps together so that they can use the same speaker

Wow, that made my brain hurt, just get another speaker.
 
Re: Can you wire two amps together so that they can use the same speaker

Why would you want to? It probably wouldn't sound very good. Even if you didn't fry one of the amps, you would probably run into phase issues.

Sent from my MotoE2(4G-LTE) using Tapatalk
 
Re: Can you wire two amps together so that they can use the same speaker

Another solution would be one of the 212 or 412 cabs that are designed to run mono or stereo, like the Mesa 412 Recto. Another option would be the Road King cabs which have one side open and one side closed back. This is similar to the older Mesa Half-Back cabs, which I adore. Mine has C-90s in the open top and EVMs in the ported closed-back bottom. These were not wired for stereo, but it could easily be done.

So one amp into each side, then switch between amps with one of the amp switchers like the Radial.

Bill
 
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