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Post new topic Question on Stereo power amp - pre amp - usage
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Author Topic:  Question on Stereo power amp - pre amp - usage
Eddie Cunningham

 

From:
Massachusetts, USA
Post  Posted 17 Mar 2014 6:24 pm    
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I have a stereo power amp that is quite clean on both channels but lacks power !! Is it possible to use one side as a preamp and run that side speaker output into the second channel input increasing the power output of the second channel to a speaker ?? I'm asking before I try it !! Would this work or blow up the amp ??? Thanks for any help or advice !! olde geezer - AKA Eddie "C"
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Darrell Birtcher

 

Post  Posted 17 Mar 2014 7:00 pm    
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Eddie,
Please put that cord down, step away from the amp, and get professional help before you hurt yourself. Please, don't try this at home by yourself!! Wink
David Higginbotham

 

From:
Lake Charles, Louisiana, USA
Post  Posted 17 Mar 2014 7:15 pm    
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NOPE!!!! You can't do that and yes it will blow your amp and possibly anything else attached as well...including YOU!!!

What is the power amp? Most can be bridged to run one channel at twice the power but most also require an 8 ohm load when bridged so if you're running a 4 ohm speaker it may overheat. Some are ok with a 4 ohm load like Stewart's. It should say so on the power amp. Do you have the preamp output level up all the way?
Dave
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Stephen Cowell


From:
Round Rock, Texas, USA
Post  Posted 18 Mar 2014 5:13 am    
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Are you using a preamp? It will be very quiet if you plug straight in! We need more info to help you better... post the whole system config.
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Too much junk to list... always getting more.
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Pete Burak

 

From:
Portland, OR USA
Post  Posted 18 Mar 2014 5:52 am    
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Some Stereo Power Amps have a switch or wiring scenerio available to "Bridge" the power amps for more (double) power, making it a Mono Power amp.
You would have to tell us the Brand/Model in order to know for sure.
If you Bridge to Mono, you could then also lower your speaker impedance to get more headroom (wire your two speakes in parallel instead of series).
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Eddie Cunningham

 

From:
Massachusetts, USA
Post  Posted 18 Mar 2014 7:03 am     WOW !! Thanks !!!
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I don't have a preamp. I guess that is the problem !! I will proceed slowly in that direction !! Thanks for all the help info !! Ed "C"
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