Ok so my brother GAVE me his Infinity Beta 50's and Primus 150 surrounds. I've been doing some research and have read that it's not good to mix and match different speaker models for timbre reasons. However I got them for FREE. I'm now looking at the Primus PC 351 as a center channel. Will this affect the sound quality at all at a noticeable level mixing that with the Beta 50's? Or should I try and find the Beta c360 center channel as they are the same model as the Beta 50's. My budget is not the largest so getting these speakers for free was truly a blessing. Thanks.