Well if you want to go Bi-Amp you are going to need an electronic cross over,(a 2 way)according to the manual of your speakers.Then you would use one amp for the lows, and the second amp for the highs,unfortunately you could not use the amps for the mains from your 1050 if you decide to go this route.But what is the main reason you would want to go bi-amping!Would it be that you are looking for better dynamics,more clarity and less compression?Or could it be you want to play them at rock & roll levels?