kicker 450.2

timwebb · 30th July 2011, 05:55 PM

i have this amp and it works but the output transistors get hot and it doesnt draw a lot of current. what would that be?

Perry Babin · 30th July 2011, 11:10 PM

Are they clamped tightly to the heatsink?

Do they heat up at idle (clamped to the heatsink)?

timwebb · 30th July 2011, 11:12 PM

yes they are clamped tight to the heat sink.yes they do heat up at idle

Perry Babin · 30th July 2011, 11:24 PM

What work have you done to the amp?

How much current is it drawing?

How much voltage is there across the emitter resistors (all 4 resistors)?

You'll have to remove the preamp board to get to two of the resistors.

30th July 2011, 05:55 PM	#1
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	kicker 450.2 i have this amp and it works but the output transistors get hot and it doesnt draw a lot of current. what would that be?

30th July 2011, 11:10 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Are they clamped tightly to the heatsink? Do they heat up at idle (clamped to the heatsink)? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

30th July 2011, 11:24 PM	#4
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	What work have you done to the amp? How much current is it drawing? How much voltage is there across the emitter resistors (all 4 resistors)? You'll have to remove the preamp board to get to two of the resistors. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

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30th July 2011, 11:12 PM	#3
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	yes they are clamped tight to the heat sink.yes they do heat up at idle

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