RB1091s a good match for RB1575?

[pmarb]

Dear All, At present I'm using the outputs of 2 RB1575s to biamp my front R&L. Would 2 RB1091s be a good match for the RB1575 so that the RB1575 would handle centre and surround duties only,? or would it be better to use an RB1572 for front R&L?

thanks

Tony