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EQUIPMENT FORUMS >> ZP3 / ZMC1,2,3 >> Kiseki PurpleHeart N.S. Cartridge Loading ZP3 Help
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Message started by pursuitofnow on 02/07/20 at 05:44:26

Title: Kiseki PurpleHeart N.S. Cartridge Loading ZP3 Help
Post by pursuitofnow on 02/07/20 at 05:44:26

I'm considering a cartridge upgrade and looking at replacing my Ortofon 2M black with a Kiseki PurpleHeart N.S. I'm using a ZP3, love it, and plan to use it forever if I can. The Purple Heart has an output of 0.48mV but I think I'm covered in the gain territory with a zstage and and ztpre. Please let me know if I'm not.

I don't know a whole lot about step up transformers and loading and what the trade offs are with different load settings as I've never had a phono stage that offers such adjustments. I see that Kiseki recommends 400 ohms. How would I go about that with the ZP3? Or does it even matter and the 47k will sound great?

Specs provided by Kiseki for the Purple Heart are:

Output voltage: 0.48mV
Internal impedance: 42 ohms
Frequency response: 20 – 30,000Hz ± 1dB
Channel balance: 0.2dB
Channel Separation: 35dB at 1kHz
Tracking ability at 315Hz at a tracking force of 2.6 grams: 80 μm
Dynamic Compliance: 16 μm/mN
Recommended loading: 400 ohms (Bob Levi: I disagree! 800-1000 ohms)
Recommend tracking force: 2.0 – 2.6 grams (Bob Levi: I disagree! 2.1-2.4)

Any help would be appreciated. These specs maybe very similar to other cartridges, so if you are using something else like it and with a ZP3, I'd love your advice as well.