Yamaha htr-5990

I just recieved my new to me htr-5990 receiver from that auction site.Said it did not turn on.$30 faceplate and I have a new 7.1 theater receiver under $150 .Anyway,It sounds great on my Infinity quantum 3s (drives them better than I thought it would)Its rated at 120 watts per 7 channels.My surround system is 10 years old when 30 watts was about max on speakers in the surround.I have Infinty rs 8 as my mains and a powered subwoofer.I am looking at a phase technology teatro 6.5 center I can get really cheap.Will this match my infinities or do I need to get an infinty center channel?

Get an Infinity center channel speaker, so it will timbre match the two mains. Ideally, all speakers should match, but it is most critical that at least the front three match.
Good luck!