Sorry Cdc, and everyone else out there. One backslash too many.
http://www.harmonictech.com/furutech/magic_series.htm
http://www.harmonictech.com/furutech/magic_series.htm
Wash, Cut, Polish & Demagnetize
Sorry Cdc, and everyone else out there. One backslash too many. http://www.harmonictech.com/furutech/magic_series.htm |
I will pass along another tip, I listen to mainly non audiophile type Cds many of which can have avearge/below average sound with bright hard grainy treble and thin mid range etc. You can apply a 2nd treatment of Auric Illuminator polish gel to worst case Cds and it will refine treble even better than 1 treatment.......if you own below average recordings of these try this out. (For example early U2 or Cocteau Twins Cds) |
Sean, May I? Cdc, in response to your questions, in order: :The Audiodesk preferred bevel angle is 38 degrees plus or minus 30 minutes (1/2 degree). :There is no corner radius. Edge thickness (at the outermost portion of the CD after beveling should be approx. .025". :Yes, it is the outside diameter only that gets cut. :You could in fact purchase a bench lathe to perform the same operation. But you could also purchase a $300,000 Mikro Seiki CNC machining center and create a CNC command string to go along with it. If you were to use a bench lathe you would need to fabricate a fixture to maintain flatness of the CD while the machining operation was being performed. If the CD were to deflect under the pressure of the contact of the cutting tool, The recommended 38 degree cutting angle would not be maintained. :See my preceeding post for the CORRECT Furutech website. Sorry. :In regards to "ferrous impurities", that is not the only contributing factor to magnetism. The Furutech site will explain further. : I have no familiarity with "optical oils" being used in conjunction with application to the CD surface. I stress REMOVING any releases, oils or other impurities from the CD surface. :I assume when you say you tried Novus #1, you were applying it to clean the CD's surface. Novus #2&3 are scratch removers as Novus#1 is merely a plastic polish used for plastic and or polycarbonate surfaces. The manufacturers of most of the optical enhancers will explain that their products are "filling in" microscopic imperfections in the CD's plastic surface, enhancing light transmission of the laser reader. Cdc, I hope this provides the clarification you requested. And Sean, I didn't mean to "butt in", but I did want to respond to Cdc's questions addressed to me, and I figured I would kill several birds with one stone. |
No problem Buscis. As i've mentioned, these forums should be about sharing and learning for the good of the community, regardless of who can help provide the info. I couldn't remember the exact cutting angle anyhow : ) As far as trying to duplicate the results on some type of homebrew equipment or a lathe, all i can say is be very careful. Splintering CD's would not be fun nor very cost effective. In extreme cases, it might not be very healthy either if bits and pieces of shrapnel come flying out at high speed. As a side note, the Audio Desk unit has variable rotational speed and spins at a max of 9000 rpm. I always start off slowly and then build up speed. If you try to crank it up and then bring the cutting edge into contact with the disc, the cutting edge can either gouge the disc and / or crack it or get hung up on "casting flash" or a burr. Either way, the results are not pretty and the screeching sound will make you aware of a problem RIGHT away. I found this out the hard way when i did not clamp the disc down tight enough. The cutting edge caught the disc and held it in place while the platter continued to spin at 9 grand. As such, you have to have a very secure method of clamping the CD into place and hold it there under load while one is "trimming" the disc. As to my "belief" in the effectiveness of the "de-magnetizing" or "anti-stat'ing" CD's, i do think that the results are audible even if they aren't measurable. With that in mind, I would not call the results "plain as day" but i do think that the noise floor is reduced and the presentation is slightly more natural sounding. If one is to get the full benefit of such a treatment though, the plastic disc tray and mechanism that are so commonly found in most machines would also have to be "treated". Personally, i wipe down the tray and everything else that i can easily access inside the machine with "Static Guard" after applying it to a cloth. If you are going to do this, DO NOT wipe off the lubricant that might have been applied to the rails of the transport mechanism. The increased drag could result in the mechanism binding up and doing premature damage to the drawer motor. Sean > |