Sumiko Oyster™ Series Cartridge Specifications
Oyster Magnetic Cartridge Black Pearl Magnetic Cartridge Pearl Magnetic Cartridge Blue Point High Output Moving Coil Cartridge Sumiko Blue Point Special EVO III High Output Moving Coil Cartridge

Type

 Oyster Black Pearl Pearl Blue Point Blue Point
Special
EVO III

Weight

  5.3 g  6.0 g  6.0 g 6.0 g  8.3 g

Stylus

 Spherical  Spherical

 Elliptical

 Elliptical Elliptical

Stylus Tip

  0.6 mil  0.5 mil  0.2 x 0.8 mil  0.3 x 0.8 mil  0.3 x 0.7 mil

Frequency Response 

 30Hz-20kHz 18Hz-27kHz 12Hz-30kHz 15Hz-35kHz 12Hz-50kHz

Output Voltage (1kHz, 5cm/s) 

  4.0 mV  3.5 mV  3.5 mV  2.5 mV  2.5 mV

Channel Separation (1kHz) 

  25 dB  28 dB  30 dB  32 dB  35 dB

Channel balance (1kHz) 

  1.0 dB  0.5 dB  0.5 dB  0.5 dB 0.5 dB

Compliance, dynamic (lat/vert) 

 12 µm/mN 15 µm/mN 15 µm/mN 15 µm/mN 12 µm/mN

Tracking force range 

  1.25-2.0 g  1.5-2.0 g  1.5-2.0 g 1.5-1.9 g 1.7 to 2.1 g

Tracking force (optimµm) 

  2.3 g  2.0 g  2.0 g  1.7 g 2.0 g

Recommended load impedance

  47 kOhms  47 kOhms  47 kOhms

47 kOhms

 47 kOhms