I just bought my first audio gear the adcom gfp 555 mark 2 for 110 baks i know this preamp is not the best but i could not resist, and now I would like to pair it with some power amp under 600 $ to have as much perfomance as i can get . Your advide please
McCormack DNA.5 would probably fill the bill, for a softer sound maybe a Muse 100. If you need craploads of power and want to spend about half that cost, the Adcom GFA-555 is the natural mate.