Sure, Sat; if an amplifier delivers the 20-20KHz frequency range flat and with inaudibly low noise and distortion within its designed power limits, that's all that any amplifier can do as far as being audibly transparent and not adding a sonic coloration of its own. Doesn't matter whether it costs $100 or $100,000, and claims to the contrary haven't stood up when put to the(controlled blind listening)test.
To that point, if you have time, be sure to read
this article from Stereo Review. This is admittedly a very old article, but it presents one of the only true blind listening tests in carefully controlled conditions of different amplifiers that I've seen. The results are very interesting.
