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In Reply to: RE: The 103D is a fairly high compliant cartridge, at least as Denon 103's go...... posted by Lew on July 28, 2015 at 08:50:59
In short, yes you are wrong, a 103D has ~27cu at 10 Hz.Changing the tip and cantilever could only affect the effective tip mass or moving mass of the cart's motor, which is in any case quite a bit lower than any MM cart.
So it is unlikely to change the compliance much. I'm not certain, but what-if 103Cs come with a diamond mounted on a metal rod and then glued into the cantilever? And, most re-tippers use a 'nude diamond', then the ETM is going to be a bit lower, so the LF res. might actually rise a tiny bit.
The effective mass of arm and cart and the cart's suspension are the two main factors driving LF resonance.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
Edits: 07/28/15 07/28/15Follow Ups:
Thanks for correcting me on the native compliance of a 103D, but my point about the effect of a re-tip was based on an assumption that replacing the cantilever, which is done pari passu with the SoundSmith work, may involve also a change in the suspension which in turn might or might not affect vertical compliance.
And a re-tipper might / should ask about your arm, damping, current TF, A/S, etc.
Brian and John Garrott used to ask about all of that.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
I don't see how one can replace a cantilever/stylus without in some way changing the nature of the suspension materials, since they in fact "suspend" the cantilever at some point along its length. Thus it would seem likely that there would be an effect on compliance, however small or large. For extreme example, if the cartridge is "vintage", the re-tipper might want to use new suspension materials entirely, which would surely affect compliance. On a relatively new or recent production cartridge, perhaps that would not be necessary, but still...
Unless the customer wanted a significant shift, when suspension components - like the yoke in 103s - would need to be different.I've had several of my own stylus assemblies (V15/III) and three 103Ds retipped, by the Garrott Brothers (the two original men) and by VDH, as well as shipped off carts to both when I worked weekends.
None of them came back with notes to me or to our customers indicating a significant shift in TF or damping requirements.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
Edits: 07/31/15
Normally, even if a cantilever is changed, it would be replaced at the joint pipe leaving the damper and suspension alone. Otherwise the internals would have to be rebuilt. I guess it would depend on the cart, but IMO the 103D might not warrant more than a cantilever/tip replacement.
I bought an old Denon table w/Unitrac arm and DL103D. That was a popular match back in the day. The arm is 7g. I think 27cu might be an overestimate? Max VTF is 1.7g and compliance is 12cu @ 100Hz. The Ittock is 10g?? It should be fine. In my experience most high compliance Denon MC's, 304, DL-S1, sound best on arms of similar mass, even a little higher.
neo
BIRD LIVES
The three 103Ds I have had track really well at 1.4 to 1.5 grams but needed damping in a 3009/II detachable shell arm.First two had Garrott Micro-scanners added, current one has a fine line VDH and a boron cantilever.
With a line-contact stylus the trackability, as SHURE used to call it, increases quite a bit at the same TF.
IME in a medium mass arm will need damping to cope with a 103D or 103S, and I've set up a lot more than the three I own. The D works best in arms of 5-10 gm effective mass, and may still need damping.
I don't think a 103D will work well in an Ittok with an effective mass of 10-15 gm and no damping.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
Edits: 07/30/15
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