In Reply to: Re: 511B Upgrade Worthwhile? posted by Russellc on June 18, 2003 at 06:43:18:
Sounds like we are treading the same path! The good 511B's with the rubber and precut vanes are already destressed. You might find it interesting to compare the cut and uncut versions to hear the improvement destressing makes. After that, the entire exterior of the horn needs to be damped. I have been pleased with the results from using Dynamat Xtreme, but other competitive products would probably work. Its currently the one to beat and has a lot of lower cost immitators. I applied one layer over the entire exterior, and a second layer over the area between where the driver attaches and where the horn starts to rapidly widen. mounting the horns on a wood panel or frame also results in a clearly audible improvement. I think that you will be very pleased with what you hear. I look forward to reading your progress reports!Good luck,
AstroSonic
Follow Ups: