I did this experiment many years ago for a relatively short time with two Parasound 750 stereo amps powering Paradigm Studio 100s V1, using only one channel of each amp for each speaker. It was OK but then I upgaded to a Bryston 4BST stereo amp and things got noticeably better. So it will work but it depends on the power and budget. My sense is that the price for one high quality stereo amp will provide better results than two amps added together cost the same.
