Ian McP Posted January 1 Posted January 1 New thinking on cartridge compliance/effective tone arm mass matching http://www.korfaudio.com
andyr Posted January 1 Posted January 1 1 hour ago, Ian McP said: New thinking on cartridge compliance/effective tone arm mass matching http://www.korfaudio.com Interesting, Ian ... but no better than the Vinyl Engine compliance calculator, IMO.
SONDEKNZ Posted January 1 Posted January 1 My problem is trying to calculate usable compliance ratings of my all Japanese MC cartridges! (It seems most calcs don't like the Japanese 100Hz compliance ratings...) Anyone any wiser? DENON DL-110 DENON DL-103R SHELTER 501/2
andyr Posted January 1 Posted January 1 2 hours ago, SONDEKNZ said: My problem is trying to calculate usable compliance ratings of my all Japanese MC cartridges! (It seems most calcs don't like the Japanese 100Hz compliance ratings...) Anyone any wiser? DENON DL-110 DENON DL-103R SHELTER 501/2 I thought you had to multiply the Japanese 100Hz compliance rating by 1.5x - 2x, Tony, to get the 10Hz rating which the VE app requires. I suspect Ian's "Korf Audio" calculator also wants to see the 10Hz compliance rating.
Vinylear Posted January 1 Posted January 1 From memory double the compliance figure provided by the Japanese.
SONDEKNZ Posted January 1 Posted January 1 2 hours ago, Vinylear said: From memory double the compliance figure provided by the Japanese. 2 hours ago, andyr said: I thought you had to multiply the Japanese 100Hz compliance rating by 1.5x - 2x, Tony, to get the 10Hz rating which the VE app requires. I suspect Ian's "Korf Audio" calculator also wants to see the 10Hz compliance rating. Thanks guys. Yes, I am aware of this conversion approach. The problem is... Among those who know - not including me - the accuracy of this formula seems to be an even split between yay and naysayers.
aussievintage Posted January 1 Posted January 1 8 hours ago, SONDEKNZ said: Thanks guys. Yes, I am aware of this conversion approach. The problem is... Among those who know - not including me - the accuracy of this formula seems to be an even split between yay and naysayers. Exactly. I wouldn't bother with a calculation that is so approximate. Thankfully though, real world performance is not so critically affected by this "matching" as some might think. I tend to just give it a try and see how well it works. 1
Vinylear Posted January 2 Posted January 2 I had a look on the net and there seems to be no formula to convert from a 100hz compliance measurement to a 10hz. There is only a rule of thumb as stated by Andy. In a real world situation I ran 2 Denon DL103R side by side about 10 years ago. One on a 9.5 gram effective mass arm and a 18 gram arm, both sounded just fine to me. I assumed that the Denons were 10 cu to check arm compatibility one arm just scraped in, I think that was the lighter one. As aussievintage says in a real world situation its not so critical. 2
drdarkfish Posted January 21 Posted January 21 On 01/01/2025 at 2:28 PM, SONDEKNZ said: Thanks guys. Yes, I am aware of this conversion approach. The problem is... Among those who know - not including me - the accuracy of this formula seems to be an even split between yay and naysayers. On 02/01/2025 at 6:57 AM, Vinylear said: I had a look on the net and there seems to be no formula to convert from a 100hz compliance measurement to a 10hz. There is only a rule of thumb as stated by Andy. In a real world situation I ran 2 Denon DL103R side by side about 10 years ago. One on a 9.5 gram effective mass arm and a 18 gram arm, both sounded just fine to me. I assumed that the Denons were 10 cu to check arm compatibility one arm just scraped in, I think that was the lighter one. As aussievintage says in a real world situation its not so critical. Correct on the doubling conversion - a rule of thumb and nothing more. 100hz and 10hz aside; manufacturers' stated compliance is often considerably off compared to what the calculators infer to you {not to mention there are also somewhat different perspectives on effective mass also!} You will only ever truly know what the resulting resonance frequency is from testing it after setup. In my experience matching effecitve mass and compliance (on paper) is a rough ballpark of cartridge combinations to avoid, rather thann a definitive ruling of what "works" and what "doesn't".. A tonearms ability to deal with resonance is HUGE (not to be understated) balancing factor in the overall performance of the combination (as it the cartridges suspension design). 2
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