Fidelity-Research FR-6E/FR-6SE
FR-6E : ¥ 19,800 (sold in October 1973)
¥ 27,500 (around 1978)
FR-6SE : Released in August 1974
¥ 29,000 (around 1978)
Commentary
An improved MM cartridge based on the FR-5 series.
The newly designed toroidal magnetic circuit is used.
By reexamining everything from the shape of the core to the circuit design and body structure, we aim to expand expressive power.
The FR-6SE is devised to increase the momentum of the magnet of the vibration system. By generating a bias effect in the magnetic circuit, the low-level non-linear part is out of the usable range.
Model Rating
| Type | MM Type Cartridge | ||
| Load impedance | 47k Ω ~ 50k Ω | ||
| Frequency characteristic | 20 Hz to 20 kHz + 6-0. 5 dB | ||
| Channel balance | 1dB(1kHz) | ||
| Channel separation | 26dB(1kHz) | ||
| Compliance | 10x10-6cm/dyne | ||
| Coil impedance | 700 Ω (1 kHz) | ||
| Needle tip | 0. 2x0. 8 mil elliptical needle (circa 1973) 0. 3x0. 8 mil oval diamond needle (circa 1978) |
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| Needle pressure |
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| Output voltage | 7 mv (5cm/s, 45 °, around 1973) 5.5 mv (around 1978) |
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| Dead weight | 5.5g | ||
| Exchange needle | FR-6E : S-6E (¥ 9,800 (around 1973), ¥ 13,000 (around 1978)) FR-6SE : S-6SE (¥ 14,500, circa 1978) |