HELP KRELL KRC power supply lead missing

FANDESON · 22nd June 2011, 09:52 AM

Hi, I just inherited a KRELL KRC preamplifier, a beautiful device but with a flaw: it lacks the power cable connecting the power supply to the device itself, it is a cable with DB9 F sockets .
I am seeking information on how the connectors are soldered , I guess the wiring is not standard, thank you for information ...
Jean François de Toulouse France

tomchr · 1st July 2011, 05:56 PM

Just a random thought: Have you asked Krell? I have never dealt with them, but I did ask Parasound for the schematics of their amps and they provided them as .pdf files free of charge. Maybe Krell will tell you the pinout.... You won't know unless you ask.

~Tom

ticknpop · 10th July 2011, 04:31 AM

Hopefullly Krell tell you ( or try to sell you a $15.00 cable for $150.00.)

I expect the standard cable with pin 1 to pin 1 , pin 2 to pin 2 will likely be the connection - you could check this by getting the standard cable and removing the covers on both preamp and power amp and NOT POWERING the power supply and just check with an ohm meter that the positive output of the power supply went to the positive of the preamplifier, ground to ground , negative to negative ( if the power supply is dual mono then check for each channel. If that tracing of connnections seems to follow what you measure - only then power it up.

22nd June 2011, 09:52 AM	#1
FANDESON diyAudio Member Join Date: Sep 2009	HELP KRELL KRC power supply lead missing Hi, I just inherited a KRELL KRC preamplifier, a beautiful device but with a flaw: it lacks the power cable connecting the power supply to the device itself, it is a cable with DB9 F sockets . I am seeking information on how the connectors are soldered , I guess the wiring is not standard, thank you for information ... Jean François de Toulouse France

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1st July 2011, 05:56 PM	#2
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	Just a random thought: Have you asked Krell? I have never dealt with them, but I did ask Parasound for the schematics of their amps and they provided them as .pdf files free of charge. Maybe Krell will tell you the pinout.... You won't know unless you ask. ~Tom

10th July 2011, 04:31 AM	#3
ticknpop diyAudio Member Join Date: May 2005 Location: toronto	Hopefullly Krell tell you ( or try to sell you a $15.00 cable for $150.00.) I expect the standard cable with pin 1 to pin 1 , pin 2 to pin 2 will likely be the connection - you could check this by getting the standard cable and removing the covers on both preamp and power amp and NOT POWERING the power supply and just check with an ohm meter that the positive output of the power supply went to the positive of the preamplifier, ground to ground , negative to negative ( if the power supply is dual mono then check for each channel. If that tracing of connnections seems to follow what you measure - only then power it up.

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