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RE: "first just figure out how to brace the panels" ...

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In Reply to: RE: "first just figure out how to brace the panels" ... posted by andyr on May 09, 2015 at 01:16:58

Note that you want the legs not to jut forwards outside the edge of the panel so as to facilitate a curved (concave) placement scheme without creating a gap between the bass panels (gap = less bass)

BTW the 1st order XO for the T 1D is really asking for PLLXO just two caps and a resistor. Just do them symmetrically on the electronic side for the equidistant placement, it comes off better then the stock slopes that overlap some (I am thinking in order to accommodate the arrival time difference in magnepan's recommended placement)

Follow Ups:

RE: "facilitate a curved (concave) placement scheme " ... - andyr 15:49:31 05/09/15 (2)
Yes, I will use a "Stealth" approach (with apologies to Mye!) with a U-shaped base made of 1/4" steel U-channel, so the panels rest on the floor in front of base. (The struts will be bolted to the base.)

According to the Magnepan schematic, the T1-D's XO is:
* HP @ 1,136Hz and
* LP @ 930Hz.

Anyway, I'll do a sim in lspCAD and see how that looks. Initially, the guy wants to use a miniDSP 2x4 unit instead of a PLLXO, to actively bi-amp, as this will also give him room correction. But we'll see how this sounds.

Regards,

Andy
- RE: "facilitate a curved (concave) placement scheme " ... - Satie 16:14:54 05/09/15 (1)
  not as good...
  
  The T-1D tweeter is not as fast as the ribbon is but is still plenty capable of detail retrieval so cheap DAC artifacts will likely "shine" through.
  - Sure, but for his 4m x 4.5m x 4m room ... - andyr 16:56:56 05/09/15 (0)
    the room processing facilities may well do a lotta good.
    
    Andy

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