JP
7480 74111110101115
That's a rather odd conclusion to leap to.
Technics announced a new version of its direct-drive SL-1200 turntable.
- Thread starter bichitus
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That's a rather odd conclusion to leap to.
Pio1980
AK Member
What is it?
then you do agree with this?
Edit:
(They most likely posted a number "all" of the decks could meet, not just yours. The same reason the Kenny's #'s say "less than", and "better than", all of the decks will meet or exceed those numbers, so I would look at the Technics in the same light.)
can't have your cake and eat it too, it's either one or the other, there either is some deviation or there isn't, and I'm betting there is
oh, I guess yours could possibly be "the worst of the bunch" and any variations in the others would be better than yours
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refurbed Kenwood KD-770D decks offered on eBay for $2600ish with exotic wood veneers
JP
7480 74111110101115
I already provided my opinion on that.
Azimuth
Well-Known Member
Can you please tell us what brand this is?
JP
7480 74111110101115
Do you really think that because I don't agree with your opinion that mine must be based on the most outrageous perspective you can think of? How's the air up there?
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well my opinion is the manufacturer followed the industry norm and quoted specs based on numbers all units sold would at least meet or exceed. Kenwood actually posted specs stating all of the units would actually exceed not just meet.
apparently yours exceed their numbers and question why they didn't quote the same numbers you tested?
you said I was incorrect and mentioned new manufacturing tolerances I guess to somehow eschew the fact that there will be variations from deck to deck, as there will be,
the manufacturer understands this, so quoted a number high enough so some asshat wouldn't post a YouTube video showing their decks didn't meet spec. If they didn't there would be videos, you know this, I know this, the manufacturer knows this.
done
apparently yours exceed their numbers and question why they didn't quote the same numbers you tested?
you said I was incorrect and mentioned new manufacturing tolerances I guess to somehow eschew the fact that there will be variations from deck to deck, as there will be,
the manufacturer understands this, so quoted a number high enough so some asshat wouldn't post a YouTube video showing their decks didn't meet spec. If they didn't there would be videos, you know this, I know this, the manufacturer knows this.
done
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JP
7480 74111110101115
So the answer to my question is yes. This whole thing seems to be a mere wind-up as I've said three times now that you've leapt to an incorrect assumption of what I've based my opinion on. I don't believe this is a genuine conversation, but for others that may be following along/interested I'll elaborate.
I refurbish a lot of DD 'tables, and I measure a lot of DD 'tables, far beyond simplistic W&F numbers. I know that the drive electronics in a G(AE) aren't going to contribute much variation at all to rotational instability, so we'd be dealing with something mechanical, and as-such likely under ~5Hz, which is wow. The wow component on these measure extremely low, as I've seen from three different units. I also have a bit of an understanding of what it takes to move a W&F number that much, and it'd take surprisingly large tolerances to do so.
I also know that any (excluding two that were broken) of the measurements I've seen that indicated W&F around or over 0.025% exhibited rather obvious errors in the measurement setup. Having gone through better than a dozen test records to find one that can measure down to ~0.015% JIS, I'm not aware of any modern test record with a W&F track that's better than ~0.025% JIS, and most vintage ones are not a hell of a lot different.
So, I find it rather unlikely that 0.025% JIS was chosen as a high-water mark of actual performance due to production variation.
JP said above :
"Very doubtful, especially with the consistency of manufacturing today coupled with their drive control. Regardless I view W&F as an indicator rather than an absolute, as there can be a lot hiding in that number. There are definitely some 0.02%'s I'd leave at the curb."
Care to name names either publically or privately ?
"Very doubtful, especially with the consistency of manufacturing today coupled with their drive control. Regardless I view W&F as an indicator rather than an absolute, as there can be a lot hiding in that number. There are definitely some 0.02%'s I'd leave at the curb."
Care to name names either publically or privately ?
JP
7480 74111110101115
The point was that it is a composited and weighted figure, so not all 0.02%'s are equal. I've no doubt that there are units where the makeup of the figure is categorically less desirable than ideal, though I don't work on just any DD 'table so most of those I haven't had hands on aside from the odd peak at recorded W&F tracks that people send me. I do see a lot of variability pre-refurb in the units I do work on. The better drive systems can mask a lot of issues from being recognized for what they are during use.
