Looking for views on bi-amping


I have a pair of CJ prem 12 mono driving my large Proacs. While not really maxed out, I was wondering if there were any benefits to biamping the speakers other than pure power.

Does anyone have any views on what would be good match. I thought about picking up a CJ prem 11 (a two channel version of the 12's) and using it to run the highs.

I am running Naim and Linn sources through a CJ pre-amp for the front end.
jpremm
sorry to intrude
what about using combination of tube and ss amps for bi-amping...with obviously different power rating...
CJ60ES and Mac MC252
thanks
If you passively bi-amp, you have the problem of differences in gain between the two amps. I have a 2 way external crossover (actually it is a combined crossover/phonostage) which allows to equalize the gain between the two amps. thus I have been able to try different amps for the highs and lows. I have yet to try a SS on the lows.

The other reason to actively bi-amp is that since each ampb is only seeing the frequencies that are directed to it, that amp can work more efficiently. For example, the amp on top is only seeing frequencies above the crossover point for my speakers. So it's "sweet spot" is only working on the supertweeter/midrange horn and not share it's "goodies" with the woofer. My speaker's crossover between the woofers and up top were designed to be easily disabled.

Reg
A few questions on this as I am still a bit confused.

How do you account for amps that have unequal gain with the active cross-over unit?

If the speakers have 4 binding posts, can I assume that the lower post is for the lows (woofer) and that the higher two are for the mid/tweeter? With an active crossover any reason to open up the speakers or do I leave the internal cross-overs in place.

Did you try both SS and tube cross-overs?

Thanks
Have heard some active and passive bi and tri amp setups, sorry to say that chances of failure are high due to the many reasons posted above (gain mismatches mostly).

The only route I would consider is horizontal bi-amp using the same amps, otherwise I feel we are swimming against the flow of a basic principle here "Less Is More".

My One and a half cent

Fernando
I purchased a C-J Primier 11 from a good friend. I found the bass a bit lacking. I called C-J, and they recommended bi-amping with a MF-2250 for the bass with the P-11 for mids and highs. My speakers have dual binding posts which made the project possible. I purchased the 2250, ran two sets of cable to each speaker, two sets of interconnects to each amp from the pre-amp, and could not be more pleased with the results. I don't think I would go out of my way to bi-amp, but in my case I did not want to sell the Premier 11!
Regards,