Any balanced one end/rca the other interconnects?

Just about any custom cable manufacturer will produce these for you. I know 'Signal Cable' will make them to your requested length in either copper or silver, both at very reasonable prices.

Sugerbrie has the right idea. I use these and they're fine. Dave

Funny you should ask.

I just sent a pair of 2.5m balanced Kimber Heroes to the factory to be cut in half and terminated with RCAs on one end so that I'd get the two pair of RCA/XLR cables I need for my set up.

Now I don't need to mess with adapters and the cost was comparable. ($110 for this service)

I always find the aversion to adapters interesting; even if they are of much higher quality than the connectors the cable maker is likely to put on your custom cables.

Keep in mind that all gear has adapters. Inside your gear is bare wire. So does you gear have bare wire to RCA adapters, or does it have bare wire to XLR adapters ??

The only custom cable I ever had was a RCA to BNC digital cable. I got it free with a used CD player that was only BNC for digital. The seller figured he would not be able to resell the cable anyway (which is my point about custom cables).

Cardas makes an adapter.