Coustic DR (Design Reference) missing op-amp

amc32 · 26th June 2008, 10:30 PM

I bought this amp today I was told it worked. I knew it didnt when I saw one gain controll missing.After futher internal inspection,I notice someone removed it's one and only op-amp in the pre-amp section.And replaced it with an empty socket.I need help finding a replacement.
OEM or Replacement .

amc32 · 26th June 2008, 10:32 PM

Forgot to post model of amp,it is: AMP 505DR 2x50watts RMS @ 4ohm

Perry Babin · 27th June 2008, 05:23 AM

The empty socket is OEM and was empty on all of the DR series that I've seen (all were working).

ppia600 · 28th June 2008, 12:29 AM

Even the one on ampguts is missing

http://ampguts.realmofexcursion.com/...DR/inside1.jpg

1moreamp · 28th June 2008, 03:56 AM

It could be a simple crossover header using a simple parts carrier to hold the components...just thinking out loud

26th June 2008, 10:30 PM	#1
amc32 diyAudio Member Join Date: Mar 2008	Coustic DR (Design Reference) missing op-amp I bought this amp today I was told it worked. I knew it didnt when I saw one gain controll missing.After futher internal inspection,I notice someone removed it's one and only op-amp in the pre-amp section.And replaced it with an empty socket.I need help finding a replacement. OEM or Replacement .

27th June 2008, 05:23 AM	#3
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The empty socket is OEM and was empty on all of the DR series that I've seen (all were working). __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

28th June 2008, 12:29 AM	#4
ppia600 diyAudio Member Join Date: Jun 2007 Location: Louis y ana	Even the one on ampguts is missing http://ampguts.realmofexcursion.com/...DR/inside1.jpg __________________ Don't worry... you can always turn the gain down!

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26th June 2008, 10:32 PM	#2
amc32 diyAudio Member Join Date: Mar 2008	Forgot to post model of amp,it is: AMP 505DR 2x50watts RMS @ 4ohm

28th June 2008, 03:56 AM	#5
1moreamp diyAudio Member Join Date: Dec 2005 Location: Northern California	It could be a simple crossover header using a simple parts carrier to hold the components...just thinking out loud

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