This little amp actually has some promise if I can do Some signal routing to another amp. I have a pioneer GM-DX874 that came with 2 high out to rca adaptors. Ill be able to split the woofer output from the Key to a set of jl c2's and then run the added rcas to a second amp powering a set of focal mid range woofers. This is an auto DSP designed for 2 channel in 4channels out. Will this "trick" the Key into processing 6 speakers 8 10 however many can be added? I get to tinker...hopefully theres no smoke!! Any input is encouraged. Will line drivers be needed or helpful?