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Okay, in the my recent marathon (seemingly) in trying to get the most out of my turntable upgrades (Technics SL-1900), I've about reached my breaking point. My only hurdle I have left is getting the tonearm as a whole to not wobble while the needle rides the record grooves (yes, I spent the last few days searching, reading, examining, graphing, calculating, and dissecting everything I can about VTA, azimuth, downforce, etc. etc... on AA and beyond) No matter what I do i get the slightest wobble (less than .05) with the cartridge/tonearm.I don't even know how to explain my dilemma anymore (with proper terminalogy). I feel I've dove into the deep end of vinyl without learning to swim first...
I've experimented extensively for the best mat sound. So far, despite consensus on here, I have found the SorboGel to deliver the sharpest, most detailed sound. GET THIS: I've tried the SorboGel with two different sizes anti-static/slip mats; without mats; anti-static mats without Sorbo; TT factory mat; and NO MAT AT ALL. The no mat and TT factory mat had little to no detectible wobble (non without mat...duhhh). But I like the sound of the SorboGel the most. AAGGHHHH!! It sounds great, but I don't want to cause any damage on record or to needle.
(also wobble disappears further into the diameter of the record)Any help GREATLY appreciated........................... hopefully I'll have one eye left by the time someone responds...
Follow Ups:
DickI believe that many Tonearms can often exhibit aesthetically unsettling appearing behaviors visually during play or when being handled, arms with knife edge bearings seem very flawed the first time you handle some arms of that type.
But what really counts ultimately, is simply what comes out of the loudspeakers (or headphones).
As long as you're not experiencing mis-tracking inner groove or otherwise and the music is connecting with you emotionally or at least causing involuntary finger or toe tapping, you need to just avoid looking at the arm during play and consider yourself fortunate.Generally those lower end Japanese standard equipment tonearms are anything but confidence inspiring or impressive and lots of them utilize pot metal and plastic construction, and feel loose as a Goose, but surprizingly they work and more often of not sound great ! go figure ?
Regards Fred
It helps. Nothing like a little positive thinking before I hit the sack!
it seems that in the time it took for me to post, I have been able to return to my hurdle with new eyes. It looks as if the record is riding very intricate changes in mat placement. The SorboGel does not entirely cover my platter, and there is a "gully" between the metal plate and plastic outer ring. The mat cannot fit entirely on one side or over the entire "gully." The spots where the mat placement is different, the record looks to ride higher or lower, causing the needle and everything else to follow that path. Does this seem accurate? I've been meticulously reshaping the SorboGel position to get it as perfect as possible.Could it be the mat is not perfectly even? Would the cartridge ride that much differently one way or the other?
SO, if it is NOT 100% perfect, and the needle rides a slop (no more than, say, .03), if the sound is not effected, is it really that bad? (For me it is, with my OCD and all, but want the real-life answer, thanks.)
And the cartridge is an AT120E
DickOne thing you can really count on, is that NOTHING is perfect, particularly hominid derived stuff, will ever even approach perfection, even the concept of perfection is just construct,illusion and delusion and the overall concept of perfection is imperfect in the extreme.
Analog is inherently imperfect, part and parcel of the infinate fascination, challenge and ultimate beauty of music reproduction via vinyl.
Both loudspeaker and tube technology run along the very same lines.
Take a look at the output of a wonderful crank/artist built SET amp
with 30 to 50 yr old NOS tubes on an Occiloscope, it'll often look like shit compared to even a very low rent Best Buy cheesy CD player,
but listening is an entirely different matter altogether !With loudspeakers the state of the art, mega buck studio monitors
are amazingly linear free of resonances and accurate in the extreme but I don't believe any of them have ever been noted for their musicality.No record is ever perfect dimensionally ! there is always some compounded degree of dimensional deviation, imperfectly centered spindle holes
hole dimensional variations as well, warping of various types and variations of record thickness, when did the record come out of the
Mother ? early ones are often dosed badly with MRA, much later ones when new plates are needed the grooves are getting (for lack of a better word) fuzzy etc.But as flawed as these reletively ancient highly imperfect technologies are, there is often seemingly magical synergies involved along with the maturity of these technologies and and more than a bit of hard won design and manufacturing artistry involved, and that's even before we get the opportunity to tweak it to our own needs and desires.
Regards Fred
My Grado Woodie has terrible wobble, they even nick named it the Grado Dance!Fortunately my SME arms have silicone dampening and this has eliminated this problem.
It could be that everything you are doing is perfect, but that the compliance of the cartridge requires dampening.
Will the KAB silicone dampening assembly work on your table? If so, I would give this a try. It might also add some deeper and more defined bass.
The cartridge is a AT120E. I've not read any "wobble" reports on it, but never know. I'm not familiar with this KAB silicone dampening ?? Maybe I'm not searching the text right for it...
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