Amp transistors burning

Sanon · 7th August 2011, 07:18 AM

Hi ,
I am powering 80Wrms speakers with 150Wrms rated amplifiers (PA system) . Now its the third time that the amplifiers power transistor bridge has burnt . Please advise me whats going wrong , should I use a 150Wrms preaker?
Thanks

digits · 7th August 2011, 07:41 AM

is it 4 ohm speakers perhaps?

Sanon · 7th August 2011, 08:36 AM

Quote:

Originally Posted by digits

is it 4 ohm speakers perhaps?

These are 8 Ohm speakers .

tiefbassuebertr · 7th August 2011, 12:45 PM

post this topic by "Solid State" and post additional the associated power amp schematic. Then you will get certainly several advices.

7th August 2011, 07:18 AM	#1
Sanon diyAudio Member Join Date: Sep 2010	Amp transistors burning Hi , I am powering 80Wrms speakers with 150Wrms rated amplifiers (PA system) . Now its the third time that the amplifiers power transistor bridge has burnt . Please advise me whats going wrong , should I use a 150Wrms preaker? Thanks

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7th August 2011, 07:41 AM	#2
digits diyAudio Member Join Date: Apr 2011	is it 4 ohm speakers perhaps?

7th August 2011, 12:45 PM	#4
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	post this topic by "Solid State" and post additional the associated power amp schematic. Then you will get certainly several advices.

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