Bang & Olufsen SP-12
A moving micro cross (MMC) phono cartridge designed for high-fidelity vinyl playback
Overview
The Bang & Olufsen SP-12 is an MMC cartridge, which means it uses the Moving Micro Cross system. Bang & Olufsen made it, and it sold for ¥19,000 around 1973. It is meant to work into a 47k Ω input impedance and gives a balanced signal over a wide frequency range. The stylus unit is exchangeable. It is the Type 5430, and it also listed at ¥19,000 at release.
Specifications
| Type | MMC Cartridge |
| Frequency band | 15 Hz to 25 kHz ± 3 db |
| Stylus Diameter | 0.2x0.7 mil (oval) |
| Proper needle pressure | 1.0g ~ 1.5g |
| Channel separation | 25 dB or More (1 kHz) |
| Channel balance | Within 2 dB |
| Compliance | min:25x10^-6 cm/dyne |
| Vertical tracking angle | 15 ° |
| Output voltage | 5mV/5cm/s |
| Load impedance | 47k Ω |
| Dead weight | 8.5g |
| Exchange needle | Type 5430(¥19,000) |
Design
The SP-12 uses the Moving Micro Cross system. It was designed for accurate stereo signal retrieval and extended frequency response.
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