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Planar Speaker Asylum

First Watt B4 to Bi-Amp Magnepan 3.6's

170.75.130.30

Anyone using a First Watt B4 to Bi-amp their 3.6"s? I ordered one and will be getting it this week. If anyone has one in use what settings are you using?

Follow Ups:

RE: First Watt B4 to Bi-Amp Magnepan 3.6's - 66mgb 16:02:44 10/11/16 (4)
Thought I would be giving a report on the B4 by now, however, Found I had a blown ribbon on one speaker, ordered a new one today, when replaced I will give my impressions of the bi amp setup.
- Ouch!! - neolith 12:04:28 10/13/16 (3)
  One advantage to active biamping is that it provides protection to the tweeter. When the bass amplifier is stressed (clips), the treble amp is unaffected. I ran my IIIa's for about 15 years without fuses and had no tweeter problems.
  
  I married the perfect woman. The downside is everything that goes wrong is my fault.
  - RE: Ouch!! - 66mgb 12:12:47 10/13/16 (2)
    Ribbon Protection ,That is one of my motivations to bi-amp. I got a great deal on a new B4 on aduigon( $900 ) so It did not seem too much to pay. It is very well built and offers so much flexibilty
    - RE: Ouch!! - BDP24 17:43:15 10/13/16 (1)
      Agree whole-heartedly 66mgb. The only thing the B4 doesn't provide is balanced/XLR connections, for those with a pre-amp and/or power amp having XLR's only.
      - RE: Ouch!! - 66mgb 14:21:47 10/19/16 (0)
        
        In Reply to: RE: Ouch!! posted by BDP24 on October 13, 2016 at 17:43:15
        
        Replaced my blown ribbon, a piece of cake! everything back to normal, though the volume is now a little lower out of caution. As soon as my additional new cables arrive for the crossover, the B4 will be put in place, with a Pass X150.5 on mid and tweeter and a B&K Ex4420 on the bass.
RE: First Watt B4 to Bi-Amp Magnepan 3.6's - neolith 10:37:27 10/04/16 (2)
Don't have a B4 or 3.6 but I suggest a 4th order LP set at 200 Hz and a 1st order HP set at 240 Hz. These settings are different from those suggested by Magnepan but are almost identical to the OEM crossover.

I married the perfect woman. The downside is everything that goes wrong is my fault.

Edits: 10/04/16
- RE: First Watt B4 to Bi-Amp Magnepan 3.6's - Roger Gustavsson 22:50:59 10/04/16 (1)
  My active crossover have 4th order low pass at 280 Hz (-6dB) and 1st order high pass at 200 Hz. The high pass can be done passive. The B� is a flexible but expensive solution...
  - RE: First Watt B4 to Bi-Amp Magnepan 3.6's - BDP24 18:33:57 10/05/16 (0)
    Not exactly cheap, but a lot cheaper than the Bryston, and more flexible, offering 4th order-24/dB octave filtering; the Bryston doesn't. The B4 also has many more x/o frequencies that does the Bryston, and is built with Jfets operated with no feedback. The B4's circuitry is free of opamps, too (as is the Bryston, but not the Marchand).

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