Has anyone tried 2 amps in stereo mode?

It's not a bad idea. You will hear a more effortless presentation. And biamping this way allows the amp to direct more power and current to the channel driving the woofer, and will completely eliminate any chance of crosstalk between amp channels. It works quite well.

Neil

You'll be delighted with the results. This is called vertical biamping. It is an easy way to bring your system up at least a couple of levels. It is a little on the expensive side to buy two identical amps. Be advised that you will need exactly the same speaker cables and exactly the same interconnects to get the full benefit. There are many people who claim that using less expensive cables for the low frequencies makes sense and saves money, but in my experiences (see my system) it makes a profound difference. Using the same stands, isolation, etc is just as important.

Hi,
I'm currently running two Parasound 1500's in a Vertical bi-amp setup to a pair of Kestrels.
I've tried running them in mono as well as the present setup and at odds what config. is better.
For the money, It dosen't pay for it's self to buy a second amp. I'd go with a better two channel amp or true mono amps.