Stefan,
My Blue Heron Audax HD3P tweeters show & have the same problem you are discribing. This gas leak problem was a defect in the design of the HD3P and will eventually lose almost all ouput as the gas escapes. In reality, it was NOT some mysterious gas as legend has it, but merely air.
The good news is, there is a fix! Yes, you read this correctly. My two HD3Ps are currently being modified repaired at Moca Audio (www.moca-audio.com) in Tours, France by an acoustical engineer (Marc-Olivier Chauveau) who specializes in Audax drivers. They are to be shipped back to me next week. The mod-repair attempts to seal off the the leak or leaks as good as possible. He said to me, the repair may last a year or longer, or maybe only a few weeks. The better news is, you can put the air back in yourself, if, and or when it begins to leak, as he attaches some small nozzle type tube on the back of the HD3P. It comes with instructions on how to do this. Unfortunately, you have to remove the tweeter from the speaker to put the air back in. (NOT disconnect the wires) The cost of the repair-mod is 60 Euros for each tweeter. About $75.00US
If this seems like too much trouble, he has developed an extremely modified Audax tweeter (TW025HE01) that is an exact replacment for the HD3P. 200 Euros each. In addition, you would have to replace the existing HD3P crossover with his newly developed crossover, which he claims mimicks the exact characteristics of the HD3P. 45 Euros each.
If you have any questions, I would be happy to answer them if I can. Or better yet, you can email him yourself at mochauveau@moca-audio.com
Best of Luck,
Michael
My Blue Heron Audax HD3P tweeters show & have the same problem you are discribing. This gas leak problem was a defect in the design of the HD3P and will eventually lose almost all ouput as the gas escapes. In reality, it was NOT some mysterious gas as legend has it, but merely air.
The good news is, there is a fix! Yes, you read this correctly. My two HD3Ps are currently being modified repaired at Moca Audio (www.moca-audio.com) in Tours, France by an acoustical engineer (Marc-Olivier Chauveau) who specializes in Audax drivers. They are to be shipped back to me next week. The mod-repair attempts to seal off the the leak or leaks as good as possible. He said to me, the repair may last a year or longer, or maybe only a few weeks. The better news is, you can put the air back in yourself, if, and or when it begins to leak, as he attaches some small nozzle type tube on the back of the HD3P. It comes with instructions on how to do this. Unfortunately, you have to remove the tweeter from the speaker to put the air back in. (NOT disconnect the wires) The cost of the repair-mod is 60 Euros for each tweeter. About $75.00US
If this seems like too much trouble, he has developed an extremely modified Audax tweeter (TW025HE01) that is an exact replacment for the HD3P. 200 Euros each. In addition, you would have to replace the existing HD3P crossover with his newly developed crossover, which he claims mimicks the exact characteristics of the HD3P. 45 Euros each.
If you have any questions, I would be happy to answer them if I can. Or better yet, you can email him yourself at mochauveau@moca-audio.com
Best of Luck,
Michael