Graham Phantom DV XV-1s setup question

Myles,

That makes good sense for active demagging/fluxbusting, where the potentially conflicting requirements for music play don't exist.

1. The LP need not be spinning, there's no need to optimize VTF for clean tracking.
2. You're not playing a modulated groove, there's no need to optimize VTF for maximum cantilever freedom.

Maximizing the fluxbusting effect obviously requires that the coils be centered in the fields. Now tell us the precise VTF that centers the coils when the cantilever isn't moving - good luck! ;-)

Whether one should actively demag a cartridge at all is of course subject to debate. As I'm sure you know, active demagging would destroy any MM, any MI and some HOMCs. Whether a LOMC should be actively demagged depends on the cartridge. Many LOMC manufacturers advise against it and will void the owner's warranty if it's done. FWIW, I prefer the less dangerous "demagging" tracks on the Cardas LP.

I closed the chapter demagging/fluxbusting 10 years ago. And yes, I had this Audio Physics unit. I developed this idea, because I didn't want to ruin my cartridge, looked for an indian medicine man and found a retired Apache. 2x a week he dances around my Turntable, charges me a few $ and it sounds better after that. No danger and good for my garden, too. When he leaves my place, it is raining, too.

Doug-

Yes was referring to fluxbusting with the cartridge sitting on a stationary record.

You may have seen this already but Jonathan Carr posted this excellent review about fluxbusting on Audioasylum back in 2001 that answered a lot of people's questions eg. why some manufaturers recommend fluxbusting and other don't.

If Jonathan is reading this, wonder if you have anything to add to the subject 9 years later ;)

http://db.audioasylum.com/cgi/m.mpl?forum=vinyl&n=61192&highlight=to+demag,+or+not+to+demag?

In our High End world there is a Theory for everything. Later you see, what was really right and what is (was) more or less a mistake.
"Fluxbusting" is a typical High End result.
Of course you will find an exception for everything, but in general the Degauss makes the Permanent Magnets weak after several times of use. We noticed, that the cartridge needs "this" in always shorter periods (like a junkie), the Dynamic ability is reduced time after time, the magnetic field is getting more and more weak.
A real no-go (for me).
There are some exceptions, when some magnets are covered with dust which contains some metal parts, here it can help.
In Germany (or some other countries) some companies "refurbish" old magnets from speakers, they reactivate their magnets to full, new specs. this is not cheap. Maybe they are doing something wrong.

Well have never experienced anything but improved sound with fluxing with my Lyras. If you're skittish, what about George Cardas' test LP that supposedly can fluxbust the cartridge too?