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16 ohm cab with SVT4 Pro Power Amp Section?

permadave

permadave

Jul 20, 2004
309
1
Oakland, CA
www.myspace.com
#1
Was curious if it's damaging at all to the SVT4 Pro (or to a cab) to run a Sansamp guitar preamp pedal into the poweramp section and then out to a 16ohm 1x12 cab with an 80w speaker. The amp can handle as low as 2 ohms, but only lists power stats up to 8 ohms in the manual.

Assuming going higher in this instance would be ok, just not lower than 2, right? The manual says it'd be 350W at 8 ohms using power amp section A or B of the amp.
 
#7
permadave said:
Sorry, forgot to mention the intent is to use the power amp section of my bass amp to power a guitar preamp and cab. Sounds like it might be too powerful for that purpose.
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hell to the no way Hosé on that one. If you plug a amp speaker output into anything but a speaker you wind up with a whole lot of smoke. Maybe that is not what you meant. Playing it safe while we figure out what you are up to. That means stop with the plugging stuff in before the smoke gets out and tell us more.
 
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#8
Downunderwonder said:
hell to the no way Hosé on that one. If you plug a amp speaker output into anything but a speaker you wind up with a whole lot of smoke. Maybe that is not what you meant. Playing it safe while we figure out what you are up to. That means stop with the plugging stuff in before the smoke gets out and tell us more.
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This would be the path: Guitar to Sansamp. Sansamp to SVT 4 power amp A input. Then, speaker out to 16ohm cab. So the amp wouldn't be bridged, but still sounds like too much power for an 80w speaker.
 
#10
permadave said:
This would be the path: Guitar to Sansamp. Sansamp to SVT 4 power amp A input. Then, speaker out to 16ohm cab. So the amp wouldn't be bridged, but still sounds like too much power for an 80w speaker.
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That's all fine until you turn up too loud. Play with clean tone to find where the speaker starts to say ''enough already Ima gonna blow''. Hopefully that will temper your ambitions for rocking it out.

You didn't say what kind of cab / driver it is.

Your big problem is the sansamp has multiple high gain inducing knobs. Drive Bass and Output Level all contribute to the overall output.

You need to be wary of the sansamp overdrive sound at volume. It will be hard to distinguish that from your speaker giving up the ghost.
 
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#11
Downunderwonder said:
That's all fine until you turn up too loud. Play with clean tone to find where the speaker starts to say ''enough already Ima gonna blow''. Hopefully that will temper your ambitions for rocking it out.

You didn't say what kind of cab / driver it is.
Click to expand...

Thanks, all. It's an Avatar G112 with Celestion lead 80. But could potentially swap out with a swamp thang, which I think can take 150w. But probably just cheaper/easier to get a used power amp off CL.
 

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