This is the 40th anniversary model AT33R MC cartridge of Audio Technica.

I think that the state is a better one because I hardly use it.
There was no problem with sound generation.

It is with a special shell. Since it is not sold only shell, it is rare. AT-LH 15/OCC

● Adopt potassium titanate mixed resin to realize high strength and high sound quality for VC mold fixing coil.
● Gold evaporated Boron Muk Tapered Cantilever shortened. Propagate the sound faithfully.
● Vibration damping design to details of the vibration system. Damping paint is applied to vibration system to suppress unnecessary vibration.
● High stability reproduction for about 1,000 hours with a micro linear needle with low distortion.
● Damper tuning according to the improved vibration system. AT33 series Two-piece damper system of traditional sound quality.
• PCOCC 6N for coils 6N-OFC for sub lead lines and PCOCC for terminal pins. Extract each good point 【Series hybrid structure】.
● 6N-OFC is also adopted for shell lead wire. Audio Technica Total sound quality optimization making full use of the know-how of cable design.
● Adopt a strong magnetic magnet. Better magnetic force and higher performance than before.
● Suppresses unnecessary resonance with titanium compound housing.
● Adopting vibration damping material [Hane Night] that is advantageous for sound quality in the housing and vibration system.
● Head shell also designed exclusively. [Hanenaito] tuning damping head shell.
● Lightweight cylinder attached to increase arm compatibility with shell (universal type). Shell mounting screws are made of brass sound quality oriented specifications.

Model: MC type
Playback frequency range: 15? 50,000 Hz
Output voltage: 0.5 mV (1 kHz, 5 cm / sec.)
Channel separation: 30 dB (1 kHz)
Output balance: 0.5 dB (1 kHz)
Needle pressure: 1.6? 2.0 g (1.8 g standard)
Coil impedance: 17 Ω (1 kHz)
DC resistance: 17 Ω
Load resistance: 20 Ω or more
Coil inductance: 70 μH (1 kHz)
Static compliance: 40 × 10 - 6 cm / dyne
Dynamic compliance
: 10 × 10 - 6 cm / dyne (100 Hz)
Needle tip shape: Micro linear (ML)
Vertical tracking angle: 23 °