Bi-amp cable question


I looking into Bi-amping my ML Quest speakers with 2 BAT VK500 dual mono type amps. My question is the interconnect cables. Are there pre-amps that can take the four interconnects (four outputs) either balanced or unbalanced? Or do I have a "y" cable made up? Any advise would be greatly appreciated
jwstannese647
Conrad Johnson's PV10A has two pairs of RCA outputs. I have one and love it. There's one for sale on Audiogon right now.