Technics EPC-84SM(200C)
¥ 19,500 (around 1970)
Commentary
This cartridge was announced as the top-of-the-line MM cartridge.
High-energy platinum and cobalt magnets are used for the vibrator. At that time, the best magnet in the world (maximum energy product 14x106G ・ Oe) to reduce the weight of the vibrator.
In order to demonstrate the performance of platinum and cobalt magnets, we adopted a newly developed magnetic flux concentration type vibrator to improve power generation efficiency.
In addition, the vibrator supporting point is clarified by the special suspension wire system, and non-linear vibration is suppressed.
A micro-elliptical needle is used to raise the high-resonance frequencies above the range of audibility and to improve the frequency-characteristics and sound-groove tracking characteristics.
In addition, the cantilever made of ultra-hard light alloy suppresses harmful deflection and split resonance.
Model Rating
| Type | MM Type Stereo Cartridge | ||
| Format | Moving Magnet Type | ||
| Cantilever | Superhard light alloy | ||
| Frequency characteristic | 10 Hz to 30 kHz 20 Hz ~ 20 kHz (old catalog) |
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| Output voltage | 2mV/ch (50mm/s, horizontal 1 khz) 3 mv (50mm/s, 1 khz, old catalog) |
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| Channel separation | 25 dB or More (1 kHz) | ||
| Channel balance | Within 1 dB (1 kHz) | ||
| Distortion factor | 1% or Less (1 kHz, Old Catalog) | ||
| DC resistance | 1,000 Ω | ||
| Impedance | 5k Ω (1 kHz) | ||
| Compliance | 13x10-6cm/dyne(100Hz)
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| Needle pressure range | 0.75g ~ 1.5g | ||
| Recommended load resistance | 50k Ω ~ 100k Ω | ||
| Replacement Needle Product Number | EPS-50STED | ||
| Needle tip | Ellipse Block 0. 2x0. 7 mil Diamond | ||
| Dead weight | 7.0g | ||
| Mounting Dimensions | JIS, EIA | ||
| Output terminal | 1.2 φ 4-pin terminal |