linelevel pre that facilitates balanced bi-amping?

If you are going to take things that far, you really need to move into an active electronic crossover. As such, you would only need one set of balanced outs. I know that this may be more involved than what you had planned, but believe me, it would be well worth it. Sean
>

Sean, thanks for your reply. I'm sure your advise has merit. I am trying to help out a friend and I'm sure that by-passing the passive cross-overs in his new speakers are not an option for him.

That's quite a list of "requirements"-- hard to meet them all. If your friend would accept a tubed pre-amp, the Sonic Frontiers Line series of pre-amps could meet all the requirements except, of course they're not solid state. And the stock tubes would have to be changed to get the "warmth" you want.

But the Line series has two pair(s) of XLR terminals out, and a beautiful FULL function remote. It can be warmed up wit NOS tubes, and is available in three models and price levels-- may only be available used in the near term? Good Luck. Craig

You could also use an active crossover like Bryston's. They allow you to set the high and low pass cutoff frequencies. You set the high pass cutoff below the passive internal crossover and the low pass cutoff above the passive internal crossover. This will still provide many of the benifits of a true active crossover setup without having to ruin the market value of the speakers.

Greg