Do long interconnects degrade sound?

I would add that the music sound is most unlikely to differ audibly between the RCA and the balanced XLR cables....it is just the background hum or hiss that may improve (from ambient electrical noise from appliances power and AC's etc.)....so my advice is to try RCA first and see if it works for you and your home conditions before going to XLR.

One other point...watch out if you play loud music ....having a preamp far away may lead you t oover power speakers without knowing,

Good luck!

Eldartford, probably should have said

600 ohms or less

As for the Krell, here are the specifications for its RCA outputs. No balanced outputs on this model, but who cares with that low an impedance?

Sidebar 1: Specifications

Description: Solid-state, remote-controlled, stereo integrated amplifier with 5 line-level inputs
1 balanced, 3 single-ended
1 single-ended tape loop
1 set of single-ended preamplifier outputs.
Power output: 200Wpc into 8 ohms (23dBW)
*Output impedance: 0.17 ohm*

Even inexpensive cables, such as sold by The BlueJeans Cable Company ($83.00 for 50 Ft. RCA) is only 17 picofarads of capacitance per foot.

The point is, it's what this gentleman needs to keep peace in his home. I have a pair of 60 foot BlueJeans RCA cables in my HT system and it's OK for that use.

Albert...0.17 ohms for a line level output!! Are you sure?
That sounds like the power amp.