Stereo receievers: THD of .04 vs. .08

Thanks all for the advice on B Stock merchandise.

Okay, I'm scared to mention non-high-end or non-scientific stuff here
because of the flaming I once took from a forger, but here goes:

I think I've decided on buying a pair of Infinity Beta 50 speakers.

I'm among two receivers--a Yamaha 497 (75w per ch) and an Onkyo TX
8522 (100w per ch).

One salient difference is that the Yamaha claims a 0.04 THD, and the
Onkyo a 0.08.
I THINK I have a pretty discerning ear.  Do you think that difference
in THD would make much of a difference between those two receivers,
using that one pair of speakers?

Thanks.