THX speakers

[Dave]

Hello,
I have a new THX-select rated receiver and am looking at speakers. the
system is primarily for home theatre. The speakers I like (Or b audio)
aren't THX rated and the manufacturer emailed me this:

Our speakers will work fine with a THX receiver...the THX
specification calls for the satellites to be crossed over at 80hz, and
our
speakers are designed with that in mind. We have not submitted our
speakers
for certification by THX because it is cost-prohibitive for a small
company,
and in the end performance is what counts.

How important is the THX designation for speakers in your opinion?

Thanks,
Dave