@krelldog do you know your phono cable capacitance? To make sure you load the cartridge best and assure high dynamics and resolution it would be good to know.
Then you can set your Koru by mathematical process, as others stated this will/should allow your cartridge to work "less" rather than harder which will stiffen the cantilever and reduce cart life. The stylus will not ride in the grooves easily......
I originally had a high cap cable and changed to a very low cap cable and the difference is close to night and day......I load my Delos at 475 ohms and 57.5dB gain with a phono cable at about 60pF.
Total bliss....... |
I can't find the specs on my VPI phono cable anywhere online. Not even on VPI's website...apparently its a secret. If anyone knows or can find it..please let me know.
Any examples of great phono cables with low capacitance? |
I switched my settings- Loaded at 47K--tried gain at 56db. Very pleasant...had to turn volume up. I typically listen to Lp’s at 36-40 volume setting on my Pass Int 60. With these new setting I turned it up to 44-48. Sound is detailed but a bit laid back.
I kept my loading at 47K and turned gain up to 60 db’s. This seemed to bring the punch back. Very pleasant and even more detailed. I’m listening to Steely Dan Aja (side 1) This seems to bring my Pass volume level back to where it was when it was set at 22 ohms/66 db gain.
All in all... very pleasant at 47K. With the gain at 60 I’m very happy with the sound. I actually wish I had a 58 db gain setting...it might just be perfect.
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BTW- I have this option/feature on my phono/pre.
Input capacitance to 100pF or 570pF,
What should I be set at?
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Did you read my earlier posts? Almarg 5-22-2018
I see that the Koru provides two selections for input capacitance, namely 100 pf and 570 pf. You are likely to find that the 100 pf setting will allow you to use lighter loading (i.e., higher resistance values) than the 570 pf setting.... [And quoting Lyra cartridge designer Jonathan Carr]: "Less capacitance allows the resistive load on the cartridge to be reduced [i.e., the number of ohms to be increased], which will benefit dynamic range, resolution and transient impact."
Almarg 5-22-2018
The point, generally speaking, is that minimizing the capacitive load seen by an LOMC cartridge is likely to result in optimal resistive loading being lighter than the resistive load that would be optimal if the capacitive load is higher. And in turn the lighter resistive load is likely to be sonically beneficial.
Almarg 5-23-2018
With regard to the OP’s situation, all I was basically saying is that he is likely to obtain better results using the 100 pf setting of his phono stage rather than the 570 pf setting, assuming that he optimizes the resistive loading that is used with the 100 pf setting by listening. Regards, -- Al |
