Two Amplifiers Connected in Parallel?

You are going to get a variety of answers on this; what you are describing is horizontal bi amping. I have always liked vertical bi amping where each amp drives both sections of each speaker but others like it your way. Besides the extra power it is generally thought that bi amping provided better definition and increases transparency. It also increases complexity and can sound worse if not done carefully. I am not familiar with your gear, make sure that all outputs are controlled by the volume control, otherwise one will get full output at all times. If you have only a single output you can use a Y plug or other adapters, I have had ones custom made by cable companies in the past.

"Besides the extra power it is generally thought that bi amping provided better definition and increases transparency."

I would add this is far from a universal opinion.

Kal

if you search the archives on "biamping" (may want to try various spellings (eg "bi-amping"), you will find a wealth of discussion to answer any questions you have.

I agree with the responses above. I have tried vertical and horizontal biamping with mixed results. Results in my experience are highly dependent on the equipment you're using and the speakers you're driving, and can range from awful to very good.