What's the verdict on the Adcom GFA-5802

In my opinion, and from experience owning both at the same time, the Adcom GFP-750 and GFA-5802 match up together very well and have a natural synergy.
They have good bass, an excellent warm midrange with outstanding vocal reproduction, and a good smooth treble.
The only thing that seemed to be somewhat lacking from this combo was ultimate top-end extension and air, and overall speed. In some ways this combo really excels, however.
I feel that the Adcom combo would be somewhat warmer, more transparent, smoother, and would have better vocal reproduction than the Parasound combo.
From experience, with the HCA-3500 power amp and the P/LD-2000 preamp, the Parasounds are probably brighter, alittle more extended on top, and may have slightly better bass extension.
What do you like and dislike about the sound of the Parasound combo?

I think you are perfectly ok with the Adcom preamp upgrade. However, I would find a used McCormack DNA 1 (or Deluxe) to use with it. The 5802, for the short time I owned it some years back, just didn't fair well in the comparison. It's an amp that doesn't offend but it doesn't seem to give you all of the music. I felt its dynamic swings were a little lacking, a little conjested in the mids and the highs weren't exactly what I'd call pristine (of course the McCormack can sound a touch "Tizzy" at times if you don't get the synergy thing going.)
They're a lot of excellent amps out there at good prices. I wouldn't just lock in on any particular one. Do a little research and you'll probably have more long term satisfaction. I do think the GFP 750 is an excellent preamp for the money(especially run passive.) The active side has a tiny touch of that Adcom sound but overall it is excellent.

Daltonlanny
My problem is lack of power since I changed my cdp to a TRL Sony c2000es. It could be my preamp that is lacking, but I believe it's both. The Sony puts out 2v. From what I understand most mass market cdps bump their output voltage to make them sound more dynamic. While TRL subscribes to the industry standard of 2v. My amp/pre compo rocks with a "hot" source... I would guess that I have approx 50% of the volume level with the TRL Sony cdp.
As far as quality of sound, I don't have a problem with the Parasound. I believe they lean to the bright side. I also thought they lacked resolution and dynamics at low listening levels, but they always filled my large room with ample volume until I hooked up the TRL Sony cdp.
So because of my much improved source I'm looking not only for higher volume levels, but a overall better product while still keeping my "budget" moniker.