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output from rcas preamp problems
The potentiometer on my preamp is getting scratchy, and the source selection is getting a little bit worn as well. I would like to get a replacement for it, but it has a strange setup for the outputs that match my amps.
On the back of the preamp there are two rca's for each channel that go to the amps.
One is marked with a plus, the other a minus and an indication that the minus is used only for "balanced" operation.
The two ways to use the preamp are as follows:
If you have only one stereo amp you use the rca's marked with a plus for each of the respective channels and hook up the speaker cable as a normal +-left +-right
if you have two stereo amps that you would like to use as monoblocks you use a positive and a negative rca's for each amp, so left channel gets +rca to the right rca on the amp and the -rca goes to the left rca on the amp.. then the speaker for the left channel is wired ++left
The question is what would I need to do in the wiring of an interconnect to get this to work with either balanced connectors, or with a single rca.. next question have you ever seen anything like this before, and do you know of any preamps that are still made that use this setup?
The preamp is a Kinergetics KPA-2; both amps are KBA-75's
A diagram is attached: