KISEKI - PURPLE HEART MC PHOTO CARTRIDGE
hen a small quantity of Kiseki PurpleHeart N.S. cartridges arrived in the U.S. very few people were told about it. After all, they are very limited in their numbers, owing to the Kiseki way of building cartridges. No sample to sample variation in sound. Every one must be perfect.
"...the Purpleheart N.S. produced a rich, inviting harmonic structure right out of the box ...Broken in and tracking at 2.5gm, the Purpleheart tracked most everything I threw at it."
– Michael Fremer, Stereophile
Somehow, the word got around. The PurpleHeart has been the number one, all-time favorite of Jim Hannon, the publisher and chief at The Absolute Sound magazine. He had worn his out years ago, and tried to have it re-tipped twice by some of the best the the industry, but could not re-create the magic. When he heard he could get a new Purple Heart, he said "I want one" and didn’t even ask what the price was. At the 2015 Consumer Electronics Show in Las Vegas, he confirmed that not only was the magic back, but that the new improved Purple Heart NS was even better, saying "A lot of cartridges do great 2D, the Kiseki PurpleHeart is 3D."
Body: PurpleHeart Wood, 30 mm long
Cantilever: Solid Boron Rod: 0.3 mm diameter
Stylus: 0,12 x 0,12 Nude line-contact diamond, mirror polished
Stylus tip radius: 4 x 120 µm
Vertical Tracking Angle (VTA): 20 degrees
Coil: pure iron coil body
Weight: 7 grams
Output voltage: 0.48 mV at 5 cm/s
Internal impedance: 42 ohms
Frequency response: 20 - 30.000 Hz ± 1 dB
Channel balance: 0.2 dB
Channel Separation: 35 dB at 1 kHz
Tracking ability at 315 Hz at a tracking force of 2.6 grams: 80 µm
Dynamic Compliance: 16 µm/mN
Recommended loading: 400 ohms
Recommend tracking force: 2.0 – 2.6 grams
Optimum tracking force: 2.4 grams