How do I set up bi-amping?
Use one amplifier per speaker in a “vertical” setup. Connect one channel to the low-frequency terminals and another to the high-frequency terminals of each speaker. The speakers must be designed for bi-amplification, with removable straps between the low-frequency and high-frequnecy driver terminals. Remove the straps. Use RCA “Y” adapters to connect both channels of each amplifier to one channel of your source.