if you dont listen to it loudly, then i would think that you would not hear an improvement with a new receiver. in my experience, the main factor in the difference of receivers, comes when you put the power to it. as you turn it up, higher quality receivers with more watts, have better staying poewer, and the sound doesnt breakdown or degrade. but they will with lower wattage units.. but, as you mentioned, you dont max the volume out, then i dont really see how a new receiver will do anything more than give you more power that you wont use.
just my opinion.
bigjohn
