sootshe Posted April 5, 2009 Share Posted April 5, 2009 Decided to try some dampening material on the K400's. A friend had some sound deadening material primarily for automotive applications. It's a combination of thermal reflective & butyl rubber with self adhesive. Impressions are positive with a slight softening of the mids which are now slightly more recessed in the sound stage. This has subjectively improved the bottom end making it easier to follow the bass line. Very easy to apply....just cut to size with scissors...remove backing paper....and apply. Even easier when you have your friend do it for you....thanks Sandro. A worthwhile & low cost improvement! I love that. Quote Link to comment Share on other sites More sharing options...
sootshe Posted April 5, 2009 Author Share Posted April 5, 2009 Make one template & cut the others from that. Quote Link to comment Share on other sites More sharing options...
sootshe Posted April 5, 2009 Author Share Posted April 5, 2009 And the finished article. Quote Link to comment Share on other sites More sharing options...
sootshe Posted April 5, 2009 Author Share Posted April 5, 2009 and doing the knuckle rap test on the finished article. Quote Link to comment Share on other sites More sharing options...
John Warren Posted April 10, 2009 Share Posted April 10, 2009 Decided to try some dampening material on the K400's. Next time try damping material. Quote Link to comment Share on other sites More sharing options...
Marvel Posted April 10, 2009 Share Posted April 10, 2009 Sounds okay to me: damp·en v. damp·ened, damp·en·ing, damp·ens v. tr. 1. To make damp. 2. To deaden, restrain, or depress: "trade moves . . . aimed at dampening protectionist pressures in Congress" (Christian Science Monitor). 3. To soundproof. Quote Link to comment Share on other sites More sharing options...
Coytee Posted April 10, 2009 Share Posted April 10, 2009 I'll admit this topic always confused me... I would have thought that, just like setting a bell on the ground, if you terminated the horn (mounted to baffle), you would immediately reduce most of the ringing. If the horn is detached from the motorboard, then it can resonate. Just like a bell that is hanging from...well...what ever a bell hangs from. A tower I suppose. I thought the larger problem with the K400 was more along the lines of reflections within the horn and I would have thought wrapping it would not affect those too much. I guess I'm showing more of my ignorance, yet again!!! [:$] Quote Link to comment Share on other sites More sharing options...
BEC Posted April 10, 2009 Share Posted April 10, 2009 Paul Klipsch talked about this here: Quote Link to comment Share on other sites More sharing options...
greg928gts Posted April 10, 2009 Share Posted April 10, 2009 What is PWK talking about when he says a flange of three times the mouth area? Is that the plywood baffle that the horn is attached to? I too have a hard time believing these horns ring when they are attached to the plywood. When you take them off the plywood and talk through them, they ring like crazy. Greg Quote Link to comment Share on other sites More sharing options...
Marvel Posted April 10, 2009 Share Posted April 10, 2009 3/4 inch plywood flange...The /4 is almost covered by the marker. He says that once attached to the baffle, there is no ringing. Quote Link to comment Share on other sites More sharing options...
Islander Posted April 11, 2009 Share Posted April 11, 2009 I thought I could hear an improvement in the sound after I damped my horns with Dynamat Xtreme, but it was subtle and not obvious. Quote Link to comment Share on other sites More sharing options...
John Warren Posted April 11, 2009 Share Posted April 11, 2009 Sounds okay to me: 1. To make damp. 2. To deaden, restrain, or depress: "trade moves . . . aimed at dampening protectionist pressures in Congress" (Christian Science Monitor). 3. To soundproof. Well then which is it? To deaden or to get it wet? "Damping" has no such ambiguity. Quote Link to comment Share on other sites More sharing options...
Blvdre Posted April 11, 2009 Share Posted April 11, 2009 Sounds okay to me: 1. To make damp. 2. To deaden, restrain, or depress: "trade moves . . . aimed at dampening protectionist pressures in Congress" (Christian Science Monitor). 3. To soundproof. Well then which is it? To deaden or to get it wet? "Damping" has no such ambiguity. OK, my horns and drivers are soaking in the bath-tub. Sounds like hell. Quote Link to comment Share on other sites More sharing options...
Islander Posted April 11, 2009 Share Posted April 11, 2009 Well, a shock absorber is a damper, not a "dampener". Here's the Wiki page on dampers: http://en.wikipedia.org/wiki/Damper Quote Link to comment Share on other sites More sharing options...
Marvel Posted April 11, 2009 Share Posted April 11, 2009 I guess the problem is the English language, but I was always taught that you should never use a foreign word when an English word was more apropos. [] Quote Link to comment Share on other sites More sharing options...
whatever55 Posted April 11, 2009 Share Posted April 11, 2009 OK... Anyone think this would do anything to the 402's as the flange is not mounted to anything ??? Quote Link to comment Share on other sites More sharing options...
Blvdre Posted April 11, 2009 Share Posted April 11, 2009 OK... Anyone think this would do anything to the 402's as the flange is not mounted to anything ??? The 402 is a plastic, so no ringing. Quote Link to comment Share on other sites More sharing options...
Moderators dtel Posted April 13, 2009 Moderators Share Posted April 13, 2009 OK... Anyone think this would do anything to the 402's as the flange is not mounted to anything ??? The 402 is a plastic, so no ringing. It's also about 1/4" thick ! Quote Link to comment Share on other sites More sharing options...
Edgar Posted April 13, 2009 Share Posted April 13, 2009 I guess the problem is the English language, but I was always taught that you should never use a foreign word when an English word was more apropos. Touché. Quote Link to comment Share on other sites More sharing options...
Blvdre Posted April 13, 2009 Share Posted April 13, 2009 I guess the problem is the English language, but I was always taught that you should never use a foreign word when an English word was more apropos. Touché. [Y] Quote Link to comment Share on other sites More sharing options...
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