Sonic differences between well designed amplifiers are minimal at most. All relevant measurements of good amplifiers show imperfections that are well below human hearing acuity. The only remaining things that matter are the potential for gain mismatch on the input (not infrequent) which can lead to clipping and a harsh (some say lively) sound, clipping of the output because of insufficient power (not an issue in your case) and load sensitivity (not likely with this combination). In short, relax.
The only potential sonic issue is room acoustics and it will be many many orders of magnitude larger than any minute differences between this and another good amplifier. Of course, if you compare it with an other amplifier you may hear differences, but that will be because many audiophile amplifiers are far worse, even if more expensive.