Tweaker's Asylum

Posted by Thorsten on July 06, 1999 at 08:50:45:

In Reply to: Which means a driver with Qms above 7, and a large value cap in series.(nt) posted by Clayton Oxendine on July 06, 1999 at 08:38:08:

Hi again,

Quite a few of the Open Baffle Systems I know (Celestion 6000 Sub, Gradient Sub for Quad ESL63, Audio Artistry, Legacy Whisper) utilise active Equalisation before the Poweramp.

Others like the Gradient Revolution and a DIY Project from Klang + Ton (Germany) use passive Equalisation with very large value Inductors.

The same is true for a Italian DIY Project based on Siare Drivers (now part of Audax) and I suspect that the Triangle Open Pannel also uses some passive equalisation....

Indeed, the only Designer I'm aware of who exploited commercially the use of High-Q Woofers was Bob Carver. But quite frankly, if you use a High-Q Woofer all this implies is a strong Resonance at the Open-Air Resonance Point. At this point as a result there will be severe lack of mechanical and electrical damping causing ringing (or Boom)....

Later Thorsten

Follow Ups:

• Re: Nope, certainly not AA and neither Gradient or Celestion do it this way.... Clayton Oxendine 12:20:35 7/06/99 (1)
  • Re: Nope, certainly not AA and neither Gradient or Celestion do it this way.... Frank Habrle 16:56:09 7/08/99 (0)