As mentioned level matching will be the issue you need to address between the amps. An external crossover is the best way to address this.
Bi amping with two different pairs of monoblocks
I'm wanting to bi-amp my Canton 1K speakers with my Triode TRX M845 monos doing the LF and borrowed Vacuum State 300B monos doing the highs.
The speakers each have 4 binding posts with links between them which I'll remove which will separate the H & L frequencies
My source is an Oppo 203. I'm thinking of using rca Y splitters like these AudioQuest - Hard Y-Adapter RCA Splitter (1x Male to 2x Female) - Music Direct
Will this layout work for me or does it need tweaking?