Garrard 301 - Project

Also do not overlook the 'fact' the Platter is receiving side force that will add a force to the Platter Spindle.

Think of the Bearing Housing fastened into a quite thin metal as an anchor point. The Force on the Platter that is also being loaded into the Spindle will be encouraging the Bearing Housing to route force into the interface between Bearing Housing / Chassis.

Flexion is to occur and will be most amplified at the Base of the Beating Housing.

Eccentric Rotation can be occurring at the Bearing Base, that is then in a lesser degree being produced at the Spindle.

 The overhang of the Platter Rim from the Spindle and Platter Mass will assist with amplifying rotations that are eccentric. 

A Styli in a Groove in such an environment is going to be functioning in a way that is not allowing for it to be a optimised interface in the groove.

Bracing the Bearings Base, or Rigidly Coupling the Bearing Housing Base is a long time seen fix on TT's that have the potential to produce a flexion in the Chassis, that is at its worst when impacting detrimentally on the Bearing Housings Base. 

A lot can be achieved if keeping the original Bearing Housing and producing mod's for it, most replacement bearings seen today as a commercial offering, are only a end design that utilises plagiarized DIY Designs. 

As a point of reference : Has anyone here ever heard a Garrard 301 in its original plinth ?  You know ---- the one that the designers of this marvelous TT chose as its companion plinth ?

Original Plinths for Idler Drives of which I owned a 401 original Plinth were built with basic cabinetry assembly practices and were creating a larger air Void.

The non rigidity of the Cabinet ( think Syli requirements) and the large Volume of air caused audible resonance when transferred to the Styli.

Plinths today are usually seen with tight tolerance rebates for the TT to bed into and the Plinth Structure is substantially rigid.

The magic really occurs when the materials for the structure are able to Damp/Dissipate energies produced very effectively, hence the Styli is working in a much improved environment.

It is all about the Styli sensitivities to received energies, keeping the energy passed from the Styli to become the electrical signal to undergo various stages of gain as unadulterated as can be achieved at the Source, which is the Styli.        

@pindac @mdalton @noromance

My Garrard 301 is finally free from the gremlins of air and floor born energy. The solution…20 years old Final Laboratory Daruma 3-II’s from my closet. They have managed to effectively float the turntable thus freeing the TT from any mechanical vibrations. They are very similar to Symposium Rollerblock Jr. I just need to be careful to not knock off my TT off the rack with my knees…LOL!

Atleast now I can focus on finding a more stable ‘isolation’ solution and not think about replacing the plinth.

@lalitk I have stated in an earlier Post:

" 3, Producing support structures under the TT can be undertaken at a variety of costs and even more permutations for Plinth Materials and Footers used as separators and then the TT’s Mounting Feet. Working with the various options of permutations is where the real magic occurs. To really get the benefits it is best when done as the last exercise of the three treatments.

There is not a ubiquitous methodology for this one, I have loaned out many materials to be used on other systems, as the Mount for the Source, the differing environments and methods used to support the Rack, as well as the Rack Type creates very different outcomes of how a material is assessed for its impact on the end sound. Perseverance wins through" .

@lalitk Now the keenness to resolve the mechanical interface has been addressed with vigour and experimentation the solution for one particular and unique environment has been discovered, which from my end brings the notion, your now on your Journey with the Pedal to the Metal.

I still remain firm on the notion, further tidying up of the end sound is able to be discovered, but do ’encourage’, a period of tome to allowed for, to enable thoroughly enjoying the music encounters now to be had for an extended period. It is now important to become very familiar with the attractions being presented during the music replays that are now available to be perceived by yourself.

Many Years Past, a selection of the UK Idler Drive users were Wed to Barry Diament’s guidance for Vibration control, especially the Roller Bearing Footers.

It looks like your footers are quite similar as a function.

It is also widely suggested in the UK that Townsend Isolation Platforms started out as a Product from using the Diament design for a inflated supported platform.

As the Diament suggestions for methods are very affordable and achievable, and in the case of this Thread been successful, the Link will be good to review.

https://barrydiamentaudio.com/vibration.htm

The idea of Perseverance wins through, is the real requirement to create the conditions that work as the perceived optimal set up.

I have been questioned on this, to the point the suggestion is not much more is to be achieved. I do not yield to the idea, there is a reason to stop, honing mechanical interfaces for the benefit of a Stylus to function at it optimised, is for myself when participated in, a real time enjoyment. .