dman777 OP
. . . wouldn’t it be better to use the XLR for the better quality and use the -3db trick?
No. XLR is not automatically better than RCA. Many uber-expensive components have RCA only. The talented engineers designed the circuitry that way on purpose. (Example)
Each brand has its own design philosophy.
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There’s plenty of confusion about:
- Analog: RCA - Single-Ended vs XLR - Fully-balanced.
- Digital: RCA - S/PDIF (75 ohm) vs XLR - AES/EBU (110 ohm).
The above are discussed thoroughly in the Audiogon archives.
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Bottom line: Get rid of distortion. Otherwise, it's not high fidelity.