Which amp/preamp/integrated for GoldenEar Triton 5's

I just purchased a pair of GoldenEar Triton 5's. I have an old Adcom amp GFA-545, but the Adcom preamp that went with it soudns muddy on one channel. Tried to get it fixed but it's still not right, so I either need a new preamp, or a new integrated. Found a great deal on Peachtree's 220SE, but am weighing that against buying something like the Parasound P5 preamp and keeping my Adcom going. Any advice much appreciated, and doesnt have to stay with those 2 choices, but my budget can't extend past $1500, and I'd prefer if it stayed closer to $1k. Thanks for your thoughts....