Adcom or Creek?

Hello,

I have recently re-started aquiring a budget hifi system...
The last one was in the UK, circa 1997: Pioneer A400 - a Giant killer:

http://www.audioreview.com/Amplifiers/Pioneer+400X/PRD_116076_1583crx.aspx

B&W P4, Pioneer stable platter transport and Cambridge DAC - The A400 sounded very neutral and magically delicate and powerful :)

Now if the Pioneer were available in 120v I would be happy with that, but that's another story...

I now have a Creek 4330R integrated and an as yet untried Adcom GFA 5200 Power Amp (watts are less important that the quality of them).

My question is would an complete Adcom system including say the GFA 450 Pre/Tuner sound better than the Creek on it's own?

I like a neutral and not artificialy "warm" sound which is what I am finding with a lot of gear I've tried.

Any comments will be much appreciated.

Thx,
Josh
San Francisco