Infinity Primus, Onix Rockets, or a Combo???

[Michael J. Sykes]

I am shopping for my first surround sound speaker system and I think I've identified a couple of good value choices. I would appreciate help in choosing one.

1) I can purchase four Infinity Primus 150 satellites (2-way with one 5-1/4" woofer) and a matching Primus C25 center channel speaker (2-way with dual 5-1/4" woofers).

2) A somewhat higher cost option would be to purchase six Onix Rocket ELT LRS satellites (2-way with one 5-1/4" woofer) and use one of them for the center channel (and have one as a spare). Do these speakers have the necessary magnetic shielding and acoustic properties to be a good center channel choice?

3) I can purchase four Onix Rocket ELT LRS satellites and the Infinity Primus C25 center channel speaker for slightly less money than six rockets. Is this a bad idea? Is it likely that combining speaker brands in this manner would degrade surround sound effects or overall sound quality?

The Onix Rocket satellites would cost 25% more than the Infinity Primus 150's (based on the sale prices I found). The rockets are prettier and a bit smaller, but do they sound significantly better?

Regards,

MJS