RCA to XLR adapters?


I currently have a complete single end (RCA) input system but was possibly looking at other amps that are fully balanced and accept only balanced or XLR connections. My question is will these adaptors give you the full benefit of a balanced amp or preamp? Or will it simply was work ok? I have expensive cable that I will not replace but is terminated with RCA's.
bobheinatz
Thinking a little further about my previous post, Ralph's point does indeed make perfect sense to me, assuming that the input stage within the amp is what is known as a long-tailed pair differential amplifier. That will produce a balanced output in response to a single-ended input, thereby realizing the benefits of fully balanced internal design in the subsequent stages of the amplifier, including the power stages where it matters most.

I assume that is the architecture used in Ralph's designs. So the question becomes whether or not the input stage of all or at least most other "fully balanced" amps can be expected to have been designed in an equivalent manner. I don't know the answer to that question.

Best regards,
-- Al
From my experience with Cardas XLR to RCA adapters, it greatly degrades the sound. If you have a very high end system, I suggest only use in an emergency or temporary.
The only time I tried SE into balanced, the amp did not respond well at all, and it was fully differential. It made sound, but badly.

Many find that they don't need expensive XLR cables because the effects (or is it affects) of the cable get reduced. You didn't mention if your preamp has XLR outs.