cd31, problem is you couldn't match the smell.
Stylus-Drag..Fact or Fiction?
Most audiophiles can't seem to believe that a tiny stylus tracking the record groove on a heavy platter could possibly 'slow-down' the rotating speed of a turntable.
I must admit that proving this 'visually' or scientifically has been somewhat difficult until Sutherland brought out the Timeline.
The Timeline sits over the spindle of the rotating disc and flashes a laser signal at precisely the correct timing for either 33.33rpm or 45rpm.
By projecting these 'flashes' onto a nearby wall (with a marker attached)....one can visualise in real-time, whether the platter is 'speed-perfect' (hitting the mark at every revolution), losing speed (moving to the left of the mark) or gaining speed (moving to the right of the mark).
RAVEN BELT-DRIVE TT vs TIMELINE
Watch here how the laser hits the mark each revolution until the stylus hits the groove and it instantly starts losing speed (moving to the left).
You can track its movement once it leaves the wall by seeing it on the Copperhead Tonearm.
Watch how it then speeds up when the tonearms are removed one by one....and then again, loses speed as the arms are dropped.
RAVEN BELT-DRIVE TT vs TIMELINE
Watch here how the laser is 'spot-on' each revolution with a single stylus in the groove and then loses speed as each additional stylus is added.
Then observe how....with NO styli in the groove.....the speed increases with each revolution (laser moves to the right) until it 'hits' the mark and then continues moving to the right until it has passed the mark.
Here is the 35 year-old Direct Drive Victor TT-81 turntable (with Bi-Directional Servo Control) undergoing the same examination:-
VICTOR TT-81 DD TT vs TIMELINE
I must admit that proving this 'visually' or scientifically has been somewhat difficult until Sutherland brought out the Timeline.
The Timeline sits over the spindle of the rotating disc and flashes a laser signal at precisely the correct timing for either 33.33rpm or 45rpm.
By projecting these 'flashes' onto a nearby wall (with a marker attached)....one can visualise in real-time, whether the platter is 'speed-perfect' (hitting the mark at every revolution), losing speed (moving to the left of the mark) or gaining speed (moving to the right of the mark).
RAVEN BELT-DRIVE TT vs TIMELINE
Watch here how the laser hits the mark each revolution until the stylus hits the groove and it instantly starts losing speed (moving to the left).
You can track its movement once it leaves the wall by seeing it on the Copperhead Tonearm.
Watch how it then speeds up when the tonearms are removed one by one....and then again, loses speed as the arms are dropped.
RAVEN BELT-DRIVE TT vs TIMELINE
Watch here how the laser is 'spot-on' each revolution with a single stylus in the groove and then loses speed as each additional stylus is added.
Then observe how....with NO styli in the groove.....the speed increases with each revolution (laser moves to the right) until it 'hits' the mark and then continues moving to the right until it has passed the mark.
Here is the 35 year-old Direct Drive Victor TT-81 turntable (with Bi-Directional Servo Control) undergoing the same examination:-
VICTOR TT-81 DD TT vs TIMELINE
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- 169 posts total
Mike (we're all on a first name basis, right? ;-), I would love to hear your findings in regard to active isolation. I saw and heard a Herzan (under Audiogon member folkfreak's EAR-Yoshino table), and am sold on extreme degrees of isolation. Not many have a Herzan, or even a Minus-K passive platform; a dedicated thread would be great---Eric. |
@mikelavigne, the classic red and yellow 'Iron Man' look of the darTZeel 108 is surely a matter of taste. I think that the looks are impressive and must play some psychological role in the appreciation of it's sound. Others may find it rather out of place gaudy and distracting for an amp which still fetches near $10k used. @mijostyn, no but it would be interesting to see what would happen if a solid state was disguised as a tube and vice versa. Would the usual perceived differences still hold true? Would they? Anyway I think it's fair to say that speed is critical when it comes to high level turntable playback. Just look at how many purely speed based revisions the Linn LP12 has had during its tenure since 1972. Each one from the Valhalla board to the Lingo to the Radikal promising a substantial sonic improvement. Each one constrained by the pliant rubber belt, each one still rather vague about numbers and specs to back up the promises. The soft blurring introduced by borderline undetectable speed anomalies (by ear alone) doesn't bother me too much as it's appears to enhance the 'analogue' feel of the playback. Ultimately though it's always up to the listener to determine just how much accuracy they need. |
ok; i started a separate thread on active isolation; with a few basics and some reference to it's use in my system. happy to get as deep as you want on the subject there. and hopefully allow specific turntable related things to continue here unabated. http://forum.audiogon.com/discussions/active-isolation-what-can-it-do-for-music-reproduction/post?postid=1819746#1819746 |
- 169 posts total