Headshell Washers : Nylon or Stainless Steel?


Few things are unimportant which are so close to the most critical interface in hifi (stylus >> groove)....

I've been using Nylon washers for nearly 18 months now, mainly for their protectiveness of the headshell finish. The nylon also performs 2 other potentially useful jobs : insulation (breaks possible GND loops - although I've never suffered one before) and constrained layer damping.

There's no denying that setting up a cart accurately is much easier with stainless steel (they don't change shape under compression and end up skewing the cartridge) although, as you know, if stainless steel is used we must be certain that it's 100% non-magnetic.
Another minor source of worry with washer choice are tales of cartridge bolts which have secretly loosened due to inadequate torque. (Although I'm certain the owners would notice this straight away...)

My main question is do the nylon washers have any ill-effects or disadvantages that you can think of?
(e.g could they compromise the rigidity of the "closed loop" - bearing in mind we are using them on top of the headshell not underneath?)
So what is the source of any sonic differences - the damping ability, or something else?

Personally I can't see them having any effect on the closed loop as the cart body is in intimate contact with the headshell and there is plenty of friction there(?)
Please discuss....
moonglum

Showing 6 responses by moonglum

Excellent feedback. Stanwal, your view echoes my own gut feelings on the matter. For years I've been trying to wean myself off the habit of making everything "Linn-tight" i.e. tighten it until it breaks then slacken off :D….So now I just "nip" them but it goes against my basic instinct.
Never had any bolts loosen on carts though….touch wood.

Dan - Initially I felt a bit foolish asking such a trivial question but the fact that someone out there has dignified my concerns by making a specialised tool is gratifying :)
It's always a worry when applying high tensile steel bolts to a tapped alum cart body as there's a real danger of thread stripping. Ortofon solves this by fitting tapped steel "cheeks" but then the Cadenza was the most recent case of bolt loosening I heard about. (…Not that I'm apportioning any blame to Ortofon or suggesting foul play :)
Changing the mechanicals is the type of update I'll try at the next cartridge change so it's good to get useful market feedback on the alternatives first. I never considered brass washers but an interesting choice nevertheless…..

Blk25 - Have no fears my friend….please accept my assurance if a particular method doesn't sound acceptable it won't stay on the turntable long.
You are right of course. I've long been resigned to the fact that there is a gulf between intellectual understanding and synergy (synergies internal to the equipment and in it's relationship to the listener's personal perception). In practice this means there is no easy route to audio nirvana and everything must be tested rigorously in the fire of our own acceptance. Narrowing down possibiIities helps but can only go so far. I wish I had a £1 note for every review which determined that a product or idea was good only to find that it wasn't good for the new owner. :)

Doug – many thanks for trying to quantify the effects. I only manage to listen for about 8-10 hrs per week so it usually takes me weeks to “re-optimise” the cart settings if I upset anything....hence I try not to disturb them once tuned. I will do the experiments after my current diamond burns out. The table consists of Raven One/Graham Phantom II/Lyra Delos at the moment.
John_G....I'd be lying if I didn't admit your response has got me worried. This is a blatant encouragement to the OCD side of my personality... :o)
All the best....
....pass the smelling salts... :D :D

Strangely enough, Doug, I lived with an LP12 for 25 yrs and it was amazingly convenient. The Ittok as you know is fixed azimuth so we just had to hope the carts were true. Apart from making summer-winter one-off adjustments to VTF I didn't do anything to the arm at all. Bolts were so tight that you needed to brace your foot against the wall to loosen them with the Allen Wrenches ( :D ) - including the arm pillar grub screw - but then I never adjusted VTA at all so it was never discovered until one day I decided to change a cartridge myself...
Life with the LP12 was magical.... Music just poured out of the system - perhaps slightly flawed in places but the magic was there.
..and all so simple. Switch on, play the music, switch off.
Changing the cart led to changing the turntable and so it began...
My friends have observed that for a number of years i've been as obsessive about equipment tweaking now as I am about the music, so I make a conscious effort not to obsess.
As you can see from the OP the Treatment is working fine... :D :D
Hi Sksos1,
I can understand why using lighter materials may help in this regard. Interestingly, in the distant past the trend was in the opposite direction i.e. people were changing from alum to stainless steel because of the tighter more rigid connection it afforded.

Upon reading the Brinkmann rationale they have to be praised for adopting a comprehensive approach to voicing their tables. Now I'm wondering, if I asked them nicely, do you think they could spare some of those titanium washers? :)
Thanks for that.....
Thanks Atmasphere...again this isn't a phenomenon I've personally encountered but was more of an Urban Legend :)

I'd like to try the titanium but sourcing them could prove difficult unless folk like Brinkmann offer them as an accessory.
Speaking of Brinkmann, here is some background on the Pi cartridge mounting philosophy :

"Helmut Brinkmann is alleged to have tweaked the Pi's design for 18 months before achieving the desired results, the machined aluminium body being designed to control the dissipation of resonant energy. The cartridge weight is a substantial 14g."
Brinkmann, as mentioned earlier in the thread, "supplies aluminium screws and titanium washers, which, in combination with special damping between the cart body and headshell have been sonically tuned to create a unique musical instrument."

This approach by Brinkmann is of course by no means unique.
(Remember the Music Maker III "Classic" alum-foam sandwich "biscuit" which separates cart from headshell?) There is also an adhesive layer for attaching the cartridge to the biscuit whilst the biscuit itself is screwed to the headshell. Not my scene but a lot of people out there like it.

If anyone knows of titanium washers that can be sourced in the EU or UK I'd be most obliged. All of the titanium ones I've seen so far are serious washers - not the dinky little ones (2.6mm?) that we use for carts :)
Best regards...