I have a pair of old realistic Mach 1 speakers for my front. I have a CS20 for my center and TSI200 for my surrounds. I have monitor 40's for front wides and a PSW125 as a sub. I have been looking at monitor 70's , monitor 75T's and TSI500's for a front replacement. I have an Onkyo Tx-nr809 as a receiver. I just want to know which speaker would be the best match.