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In Reply to: RE: it's not just about the cartridge posted by user510 on December 29, 2016 at 11:36:44
You might have missed the discussion below. It seems that some of the new LOMC cartridges have quite high compliance. My Audio Technica AT-ART7 has compliance at resonance of at least 26-cu and possibly 30-cu. Its resonance frequency is between 6 and 7-Hz in my 10.5-gram SME V.
The new Audio Technica AT-ART9 and AT-OC9/III are also both high-compliance cartridges rated at 18-cu at 100-Hz. This means that compliance at 10-Hz might be in the neighborhood of 26-cu to 30-cu.
The Denon DL-301II I owned had compliance at resonance of 25-cu.
There seem to be a lot of high-compliance LOMC cartridges available today.
Best regards,
John Elison
Follow Ups:
true enough John.
....and then there are those which have very stiff compliance. So this is a variable which the prospective buyer should consider before making a choice.
-Steve
So... high mass toenarm = low compliance cart and vice versa?
Can I assume the choice of tonearm/cart combos are a personal subjective preference or is there a definite "universal" advantage of one combination over the other?
Keeping in mind that I want to set it up and not fiddle. I want to listen to music not play with equipment. It's OK to maintain/check once a year or so, but I'm not willing to fiddle on a weekly basis. I play around with different amps and speakers, but that's a bi-annual or even longer rotation period.
Already covered below. As a rule of thumb the total arm/cartridge system needs to resonate within a range bewteen 8 hz to 12 hz. In general practice it does mean that high compliance = a soft spring. Low compliance = a stiffer spring. Typically high compliance cartridges are matched to low mass arms and low compliance cartridges are matched to high mass arms.Yes, you need to consider this before spending any hard-earned cash on a new cartridge. Typically a Denon DL-103R is a low compliance cartridge that works better with higher mass tonearms.
That is one factor which must be met.
In my initial post to your thread I made note of the quality of mfr on lower cost tonearms. Regardless of their effective mass, their ability to handle spurious vibes traveling through the arm without chattering the pivot bearings is also a factor.
-Steve
Edits: 12/29/16
"1s there a definite "universal" advantage of one combination over the other?"
Yes.
The compliance of the cartridge's cantilever suspension and the mass of the tonearm form a circuit.
The resonance frequency of that circuit needs to be as far away from the lowest frequency in the groove and at the same time as far away from the warp tones as possible.
Normally that is considered to be 10Hz.
The vinyl engine has a chart showing what the resonance frequency of different combinations will be.
Tre'
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