Bi-amping

@393gadget there is a big difference between bi-amping and going active, which is what has been discussed.. Bi-amping involves leaving the crossovers in tact and feeding each leg separately, going active involves removing the crossovers and having that function take place between the preamp and power amps. 

Pre 8 is the best way to achieve this.

Passive bi- amping can be achieved before the amps, given the right speakers. Marchant makes a passive line level crossover for this.

I did a tube biamping on a set of Maggie 3.3 removed the external part of the cross over and used a Bryston 10b. With two 120 watt solid state amps it had that Sence of ease you get with a huge amo but still had the speed of the small Amps. It costs a bunch but I did enjoy it for many years. The Sence of space and the like the singer is right there was in surpassed. 

I biamped a set of Maggie 3.3 speakers with a pair of moon W3 amps and a Bryston 10 b active crossover. The Sence of space and being there was impressive for sure. The Sence of ease that you get with a huge amp was there as well. It also had the speed of small amps. I enjoyed that for many years. It cost a bunch extra but you may find that you really enjoy it. Don't forget that it's not just an extra amplifier it is also two more power cords two more high quality interconnects two more stands one for the amp one for the crossover. There is a bunch of extra money involved.