The Myrtle Heart, with its Copper wound, square Ruby jewel plate, is a highly evolved cartridge that is extremely tough and reliable, as well as being one of the most musically pleasing of all cartridges. Its vented Myrtlewood body is a unique vibration damper for resonance control.
The latest Cardas cartridges are the Myrtle Heart and the Myrtle Silver Heart. They are highly evolved cartridges built on a unique Benz chassis. A well seasoned Myrtle Heart cartridge performs well at a high input impedance of 47 k, if the system is quiet. A lower impedance of 500-1.5 k works if the system tends to hum or the cartridge is not broken-in. The Myrtle Heart has a standard output of 0.3 mV, which is within the capability of most modern high quality pre-amps.

The character of the Cardas Myrtle Heart is lasting musicality. It is well engineered, strong and majestic. It brings the lasting luxury of detailed, life like music.

Cardas Myrtle Heart Cartridge Specifications:

Body: Machined Vented Myrtlewood

Cantilever: Solid Boron rod, 0.28 mm diameter

Stylus: Nude line-contact diamond, mirror polished

Stylus Tip Radius: 5 x 120 µm

Vertical Tracking Angle: 20-22 degrees

Coil: Square Ruby jewel plate, Copper wire

Weight: 9.1 grams

Output Voltage: 0.3 mV @ 3.54 cm/s

Internal Impedance: 45 ohms

Frequency Response: 10-50,000 Hz ± 1 dB

Channel Balance: Better than 0.5 dB

Channel Separation: Better than 35 dB @ 1 kHz

Tracking Ability @ 315 Hz with a tracking force of 2 grams: >80 µm

Dynamic Compliance: 15 µm/mN

Recommended Loading: 500-47,000 ohms

Optimum Tracking Force: 1.8-2.0 grams

Recommended Tone arm Mass: Medium to high

Recommended Break-in period: 40 hours

Warranty: 2 years