High Efficiency Speaker Asylum

RE: Questions About Your Experience Rope Caulk On Horns

75.109.31.207

freddyi

In Reply to: RE: Questions About Your Experience Rope Caulk On Horns posted by ka7niq on August 23, 2007 at 10:01:29

with 511 (not bolted to baffle) and propped on top of bassbin, the horn will have enormous ringing adding considerable "bite" to piano chords and some vocals -- - a heavy application of mortite takes the ring out but sounds awful in its own way leaving a curious mix of metal and goop sounds
(one of the worst things in my mind are drum kits wrapped with soft-plastic)
most speaker things "resonate" so do a little bit of damping at a time

Edits: 08/23/07

Follow Ups:

RE: Questions About Your Experience Rope Caulk On Horns - Ed Fallon 06:22:36 08/26/07 (1)
I've found to really knock out the ringing in a 511b, the 3 welds in the sectoral vanes have to be cut. The amount of external damping then required to eliminate self resonance is dramatically reduced. I applied a few coats of rubberized automotive under-coating on the external surfaces and filled in the cut welds with automotive seam sealer before repainting the horn. Looks like a factory new horn but no ringing. Rope caulk is very effective at damping too but I hate the look on an exposed horn.

-Ed
- RE: Questions About Your Experience Rope Caulk On Horns - Tom Brennan 13:32:55 08/26/07 (0)
  A copper, how do like that boys, a copper. And his name is Fallon.

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