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In Reply to: RE: What MM Cart. For VPI Traveler? posted by AudioSoul on June 26, 2015 at 22:13:44
In my system, the Nagaoka MP 500 needs at least 500 pf of capacitance, the MP 200 should be the same.
Opus is correct that using a cable with more capacitance will help, but you need to figure out the total capacitance the cartridge is seeing including the tonearm internal and external wire plus whatever capacitance the phono stage has at its input.
Moving magnet cartridges are sensitive to capacitive loading.
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The cure for a bright 150 may be a 200 stylus
It's the cantilever that's different. Aluminum on the 150, boron on the 200.
Opus 33 1/3
Opus 33 1/3
The MP-200 likes to see 100pf of capacitance. The AQ King Cobra IC's I am using are 110pf 1 meter pair so that cant be it. Thanks for the suggestion though. It really got me checking.....
Soul, I have seen the claim that all the Nagaoka MP series wants 100 pf capacitance on Vinyl Engine.
All I can tell you is that my MP 500 was BRIGHT!!!! until a European user suggested that about 600 pf was the right number.
At roughly 550 pf the MP 500 is sublime. And believe me, a cartridge that is bright in my system is gonna be really bright most other places.
But, as always, YMMV.
550 to 600pF seems excessive. Wondering if you've tried resistance loading instead, or in combination?
I don't have a Nagaoka, but I've read that they have rather high inductance, in the 600mH range? Load that with high capacitance and you'll severely lower high frequency resonance. You might be able to accomplish the same response with a more open top end if you use resistance loading and a more "normal" capacitance load.
neo
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