best amp for BASS


My system is in a relatively large room 25x40 with 25ft.ceiling..It is a 5.1 system with meridian 861 and 800.German physics speakers.The Main speakers are Loreley large speakers each having four 12in.woofers.These are bi amped with Xover at 200Hz,with 6db slopes.At present the amps are YBA Passion 1000 mono blocks for the highes(fantastic) and bryston 14bsst for bass.The bass is OK but definitly not great.I would like to augment the bass amp.any ideas?
ramy
If you need to save money (as in I am on a budget), buy a Krell KSA-300s, this is the amp that many Apogee (very hard to drive) speaker owners use to drive their bass in Bi&Tri amped systems. This amp will drive your bass as well as any of the new Krell's. Get one thats been back to Krell in the last couple of years...they come up for sale here on Audiogon often at around $3,500 fresh from a trip to Krell service.

Dave
I must apologize to those of you who responded to my question and to Bryston.When the dealer installed my meridian(the meridians installation are beyond me and most older hobbiest) and the bryston he set the amplifier with the wrong gain,on ballanced inputs it had the low gain ie 100watts @8 ohms instead of 500 watts@8 ohms.What a difference it made the system sounds great.Bryston thpough is not totally blameless it doid not provide a manual for the 14Bsst,only after downloading from the web did I discover the set up error.I do appreciate all of your inputs,Someday I may try the Krell 600 or 700fba I have a hard time placing a n amplifier which is deeper than 24".
Thank you
I just sold my Classe 15 which had excellent bass. I have heard the Krell 750monos at a friends and they were awesome, simply staggering sound quality...then we realized that we were listening to the AudioResearch tube amp sitting between them. A big older 250watt tube job, go figure. The Krells were excellent too but for the price it was a no brainer.
My two cents.