Before you spend a bundle on seperates, which may or may not be an improvement, I'd recommend that you try another integrated amp, like the Pass Labs INT-150 or the McIntosh MA2275 or MA7000, you could also try a Karan KI-180 or Gamut DI-150. Then, once you find a company whose sound you like better, is the time to try seperates.
Cheers,
John
Cheers,
John