mint
Users of Best Tractor
Andrew from UK
Audiomods Tonearm on Rega RP6 The Mint protractor was received today (8 days from HK which is very good) and I had an afternoon to install it in peace and quiet. I found this quite easy because I have used Conrad Hoffman & other printed protractors previously and already knew how to go about setting the overhang etc, having done this many times over the years with my two current Turntables. The cartridge I am using below is an AT150ANV My TT already sounded excellent and I had resigned
myself to just one or two LP tracks where there was very
slight mistracking on one channel in a couple of places
(but never inner groove so I put it down to previous
damage). I expected a little improvement but nothing
dramatic.
What I never expected was the easily audible step-up in imaging, clarity and tracking after using the Mint. I have just played the worst two albums and there is no mistracking whatsoever. This is amazing ! I was quite cynical that I would hear a difference but like everyone else seems to find, this tool achieves exactly what it sets out to do I also found that when I first placed the stylus
exactly centre of the arc line at the outer extreme of the
Mint, when moved to the inner & almost touching the
spindle, it was about 1mm back so even though I had
adjusted my printer to 4 decimal places and checked with a
scale rule, the printed arc was clearly still quite a way
off being correct for this arm at 221.5mm pivot-spindle
I give the process I used as below. I had good lighting
from several directions + above and I used your 3x
magnifier together with a 20x loupe for hitting the
protractor line very precisely in the middle. It is also
worth thoroughly brushing the stylus/cantilever first to
remove all fluff because at x20 it is very clear and
precise
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I raised the anti-skate counterweight onto a small pot and made sure that as the arm tracked the platter, the nylon chord remained slack so there was zero bias. I also placed a blob of Blu-Tac (visible beforehand in the picture) onto the rear of the main counterweight to achieve half the standard tracking force (checked with digital scales). Audiomods arms use a small threaded lower stub counterweight and turning this this was sufficient to re-set tracking force after using the Mint and after removal of the temporary Blu-Tac. This avoids moving the main counterweight again |
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