I do not know the Bryston specifically. But, in general, the answer is "yes". A pre-amplifier is, first of all, a source selector and a volume control. The only real "pre-amp" amplification is done on a phono input, to bring it up to the same sort of level (usually a few Volts) as CD player.
I have a Sony power amp with a gain control and it works fine in the way you describe. If in doubt, look at the specs for the output from the CD player and the input to the Bryston. I ampretty sure it will be OK.