I have been reading and researching C37-Speziallack, a lacquer developed from years of research by an Austrian master violin maker. This lacquer has been modified to have special resonance controlling properties. Violin lacquers are not just cosmetic but are used to enhance desired resonances and limit others in the maker’s quest for sound. But in audio we want all the resonances vanished-and here C37-Speziallack offers a new and different approach.
The theory behind this product is simple but almost unbelievable:
Our physical hearing system is made up of bone (which is mostly carbon, or chemical symbol C) operating at the body temperature of 37°C - hence the name C37. Our ear bones have their own particular set of resonances at body temperature, and as such could be expected to make our hearing a little bit 1ike living inside a constantly ringing church bell tower - but for most of us it's not like that, so there must be something more involved.
The C37 theory here is that we don't hear these ear bone resonance's because the brain’s operating system (some very good "C37" filters) eliminate these resonance's s without affecting what we want to hear,
The result of applying this quasi magical C37-Speziallack to a resonance prone/sensitive surface or object is not to make it less resonant (that's almost impossible without adding a lot of mass) but to shift these troublesome resonance's to match those of carbon at 37°C -therefore causing them to be automatically filtered and ignored by our brain's hearing system.
It has been claimed that this lacquer brushed onto the paper cones of speakers and after several weeks that it takes to dry, the resonance's 'coloration's reduced remarkably. The claim is not only speaker cones are affected but CD's, tubes, cartridge, capacitors, signal wiring etc. etc, etc. all benefit from C-37-Speziallack and the improvements are not subtle according to my findings.
So now my question, has anyone had experience with this incredibly expensive lacquer?
"The theory behind this product is simple but almost unbelievable"


Look here:http://db.audioasylum.com/cgi/search.mpl?forum=hug&searchtext=damar+c37
I actually forgot to discuss one other thought I was having. Given the C37 theory of carbon and temperature effecting the resonance, this could have a large factor on the sound of our rooms. I have read a number of discussions trying to explain why our systems sound so good one night and not so good the next. It would be interesting to keep a mental list of the good nights and pay attention to the room temperature, outside temperature and maybe humidity. I expect if the C37 theory has legs, we should see a prefer ed temperature for our rooms???????

I suspect from the lack of interest in this thread that people have not experienced C37-Speziallack or have no interest in the topic???????
Doc Bottlehead has reported good results applying this on speaker cones. tonemaniac over at AA seems to have extensive experience with the product. He's an always helpful resource to check with.
Hi Jadem6,
I also read about C37 sometime back. I stumbled upon it accidently over on AudioAsylum. There I noted that member "Thorsten" has extensive experience w/ this lacquer & uses it in his designs. I think that you can either ping him on AA or even send me an email off-line. The German company Symphonic Line, whose power amps I have, also uses C37 on some of his power amps. I can't remember the model number - was it the RG10 Mk4? This manuf also claims that C37 does the trick. You might try emailing Rolf Gemein at: info@symphonic-line.de