Premier Acoustic PA-6F or Acoustic Research ARXP408 ?

So I was going to finish my first HT w/ a pair of Advent Heritage H-500's (got the center and a pair of H-200's to go w/ my Onkyo 875 and an ED A2-300 sub), but the place I ordered them from told me they no longer have the 2 pr they listed.

So I can either get my $320 back, or choose between:

Premier Acoustic PA-6F

or

Acoustic Research ARXP408

The PA's I can find a little (albeit, very little) info about, but the latter, yeah, nothing, which is worrisome. So given that I can get a pair of either set for the $320 I paid already, which would you choose?

Or is there something else that I should lean towards?

Frustrated, but hoping you guys can help. Thanks!

Alrighty...this doesn't bode well.


Well, since noone seems to either have an answer for me or they don't know, well, then, let's try a different approach.

I currently have the Advent Heritage Center speaker and the plan was to scoop up one of the last 2 pairs (apparently on the entire planet) of the Advent Heritage H-500's to match up for the front speakers, to go w/ the H-200 pair for the rear.

Well, apparently those last 2 pairs on the planet were bought by someone not named eapeas and now I'm left scrambling.

So, that said, I have 2 questions for anyone willing to throw me a bone here:

1) Is it THAT important to match up the center w/ the front speakers?

2) Whether it is or not, realistically I could probably spend $750 on either the front pair or the front 3 (including a center), if need be. And hopefully could then flip the Advent Heritage Center...

So, help me out here, please, fellas?

Please see this thread in reference to our room dimensions and other exciting info about our situation.

Thanks, I hope?