Nsgarch, all I can tell you is what sounds better to me in my system. I don't have the technical depth to attempt to explain the reasons, but I know what I hear with this cartridge in my system. Technical explanations aside, it sounds like VPI has settled on the same set-up to optimize the sound of this cartridge to their preference. If, as you suggest, this set-up is causing the cartridge to track at an angle that is inconsistent with the angle of the cutting head, that is an interesting fact to know, but it does not change what I am hearing.
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Bob (and others as well), with all due respect, this is beginning to sound like the debate between evolution and "intelligent design." Has it occurred to you, VPI, etc., that maybe the "good" results you are reporting are due to a happy collision of errors? And that if you'd just ONCE! take the time to find out where your stylus is REALLY VERTICAL, and then with proper VTF and load, set the correct SRA, who knows what incredibly better results might await you -- I know this is what sirspeedy (a veteran ass dragger) reported once he took my advice. If you want to read the whole thread, it's at: http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1111189002&openfrom&1&4#1 or the following excerpts: 1.) 04-16-05: [email protected] Nsgarsh,my instruction manual(that came with my cartridge)indicates this stylus angle as preferred. (MY COMMENT: He means negative rake, but he had mis-interpreted the instructions) I,in the beginning, had the BODY fairly parallel,but found myself tilting backwards,as I played more and more records,over numerous listening sessions.I fully understand your trepidation with this,as I never would have thought the body needed this degree of back tilt.However,as time went on it became obvious to me.What I find hardest to obtain,in analog,is TRUE timbre in instruments.Too many hobbyists get off on bass.To me,dialing in the cartridge using various records,showing off timbre, results in ALL ELSE falling into place.I have a friend with the exact cartridge(vintage of about 18 months old),and his tilt back,is virtually identical.Once done,when one looks at the stylus tip from the side,the diamond seems to be about vertical in the groove.Obviously this is not written in stone,and some slight variation can be preferred.But,all in all,close to vertical is close to correct,in my set-up.As for the "W" I don't know. Please understand,I'm not trying to get into any kind of an arguement.It's just that on my set-up,what my instructions(coming with my Temper-V)state,is in fact what my results came to be.I will admit that I overlooked the instruction recommended angle,for a long time,since I set up by ear.The only reason I went back,and took a hard look at the instructions,was because I,myself,could not believe that I had to go back on the arm,as I did.A paralel body,or even close to parallel,will be off sonically.When I noticed that the instruction manual said to check for stylus tip vertical,I did so,and found that my ears were not far off.The tip was,just about vertical,as stated.As for cutter rake,etc.,I could care less.I'm only concerned as to what sounds best,to me. Excerpt 2.) 04-17-05: Nsgarch RE: cartridge loading and stylus rake angle: Groove undulations not only wiggle from side to side, they also angle forward, because a cutter head has to point backward (at 1 degree) like a chisel, so that the wax cuttings will fly away as it's making the goove. If you have a spherical or elliptical stylus, it doesn't matter a lot if the stylus is vertical, or leaning a little forward or backward, because it fits in the groove more or less the same (inaccurate) way in all three cases. BUT, with the new generation of micro-ridge styli, vdH being one of the first in the early 1990's, (if not THE first) it's a whole 'nother matter. These styli are chisel or "spade" shaped, almost like the cutter head itself. If they sit vertically in the groove (or -yikes!- tilted backward) then their sharp side edges actually scrape over, or "clip" the tops of the forward-slanting groove undulations! Paradoxically, even "mis-set" that way, they still sound better than conventional (old-type) styli because their very tip (at the bottom of the groove) can still "see" information that elliptical styli miss. To extract all the information in the groove, these new styli must "see" the groove from top to bottom, and the only way they can do that is if they can lock into the groove by leaning forward at exactly the same angle as the cutter head. Now, one can go on and on expounding on the vagaries of different systems and components and tubes and rooms ad nauseum -- however, there are certain scientifically proven mechanical and electronic rules that must apply "across the board" regardless of the equipment or the room. I have just described a couple of them. Excerpt 3.) 04-18-05: [email protected] Nsgarch,are you tellig Transfiguration owners that,when the cartridge instructions indicate one should view the stylus tip as "leaning slightly back",when viewed from the side,that the stylus is actually leaning forward,with the tip angling towards the rear?Wouldn't the instructions have said,"tip raked back",as this would then more closely follow your choice.I'm asking,not questioning.In my case I have the arm leaning back(cart. body too),because I understood the instructions to mean tip backward slightly,as lowering the body towards rear! Excerpt 4.) 04-19-05: [email protected] Nsgarch,just had a really great breakfast,with the EGG THAT I PEELED OFF MY FACE.You are correct in your description/advice,and(well the instructions were a bit ambiguous to me)the tip now rests as you describe it,with better sound,obviously.Too bad I already named my kids,or I'd be obligated to name one after you!Thanks!! [email protected] ------------------------------------------------------------ You might want to write speedy and have him relate his experiences as he discovered the beauty of correct SRA. |
Nsgarch: God forbid I would be associated with the Intelligent Designers. I don't doubt that you're right -- I'm sure you are -- maybe it's just that "ass (pivot) end down" is what it takes to get the vdH "spade"-shaped stylii seated in the grooves at the same angle as the cutter head. Thanks for the info. In any event, my VTA is only spot on for the LP I used to set it, as I lack the patience to adjust VTA for LP's of differing thicknesses. I just saw your loading post: my Froggie is vintage 2000 or so, and recommended loading on the box is 500 Ohms. In addition to the 400 Ohm loading that I use, also have a 250 Ohm loading option -- the sound is a bit closed down at 250. The loading options on the Cadence's high gain settings are typical MC loading options of 30 and 50 Ohms, but I've never spent any time listening to them, the gain being way too high at 74 db. (my Frog has the 0.65 mV. output). |
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