1. Home
  2. amps-preamps
  3. 133487-78903

Bi Amping my B&W Matrix 800s

I have been thinking about bi amping my B&W 800 Matrix . I am now using a Krell FPB 600 with a Mark Levinson 38s preamp and a Krell B&W 800 Series bass Alignment Filter. With the B&W Matrix 800 speakers being quad wired. I have been considering buying a Krell FPB 300 to bi amp with my Krell FPB 600 using the Krell FPB 600 for the 4 woofers (2 on ea. speaker) on my 2 B&W 800 Matrix and the Krell FPB for the tweeters and midrange on ea. B&W 800 Matrix . Can this be done with my Mark Levinson 38s preamp? Would bi amping really do justice for my B&W Matrix 800s? And how difficult would it be ? Thank you all .Mike 
tattooedtrackman
cleeds
2,065 posts
 
tattooedtrackman
There are 6 active crossovers on a pair of B&W 800s ...
Are you sure? I'm fairly certain the 800s use passive xovers.
tattooedtrackman's avatar
tattooedtrackman OP
343 posts
 
cleeds and edwyun  No sorry there are 4 passive crossovers in each 800 and they have polypropylene capacitors. They do not absorb moisture and they do not store heat. They will last longer than you. Those speakers were over driven by users . Im sure they were abused or you inherited bad speakers. 
tattooedtrackman's avatar
tattooedtrackman OP
343 posts
 
Do research on line about polypropylene capacitors 
edwyun
196 posts
 
On my 802s, there are 2 PCBs for each speaker that make up the passive crossover, one for the LF and one for the MF and HF.  I replaced the capacitors and resistors.  But then I went with active crossovers for the SW, LF, and the MF/HF combo.
edwyun
196 posts
 
The passives on the 802s were a bit easier to remove and replace.  I did it myself.  Used Mundof caps and Vishay resistors.  Did not use polys for the electrolytics.
More to discover