Troy, no it's not true if the comparison was done with other factors being held equal, so that a false impression isn't given. In particular, if the volume level was precisely the same(not just the same setting on the volume control, which can result in different sound levels with different amplifiers), there's nothing that can in reality produce greater "detail...clarity", etc. If enough voltage is being output by the amplifier in the receiver for the sound level in question, that's all that can be done.
