How to Bi-amp Pre-amp with only 1 set of XLR out


Can anyone tell me how to hook up 2 stereo amp with a Pre-amp that has 2 XLR output only? Can I just buy a XLR Y adapters If (there is such thing)? Does Y adapters degrade the sound? Thank you.

Pre-amp: Meridian 502 may upgrade to G02 if this work.
Amp: Meridian 559 for bass and Meridian G57 for mid/high
ellyjr
Thanks for all your suggestions. I also done this with RCAs but not with XLRs. I found the specs for G02 and G57.
G02 47ohms out and G57 32k in, but I can'nt find the specs for 502 and 559.
I talk to Meridian they said that the 559 and G57 have the same Gains and the design of both Amps are very similar. I guess their specs are the same too. I will check out those web sight. Thanks again
The 502 is also 47 ohms out -- you can see that here:

http://www.meridian-audio.com/data/502.pdf

Assuming the 559 is 32K in, like the G57, you would have 47 ohms working into 16K, which is certainly fine, and even if the 559 were as low as 10K you would still be fine.

And since they are saying that the gains of the two power amps are the same, you are good to go!

Regards,
-- Al
I am good to go! I will go to a local dealer here to ask them if Analysis Plus or Straightwire can make me a set.
Thank you.