Pioneer PC-550E/II
¥ 14,000 (around 1976)
Commentary
MM cartridge with titanium pipe cantilever.
Titanium pipe of 25 μ thickness and outer diameter of 0.35 mm φ is adopted for the cantilever, and weight reduction of vibration system as a whole is realized.
In addition, by adopting a single-end support system in which the suspension and damper are completely separated, the mechanical impedance in the high frequency range is reduced.
The stylus tip uses a natural diamond whose tip is polished to an elliptical shape of 0.3x0.7 mil.
A rare earth cobalt magnet with a small specific gravity and a large magnetic energy product is used for the vibrator, and a ferrite yoke is used for the power generation circuit to improve frequency characteristics and reduce distortion.
Model Rating
| Type | MM Cartridge |
| Structure | Shield Case : Super Permalloy Frame : Die Cast Aluminum Alloy |
| Needle tip | 0.3x0.7 mil Diamond Elliptical Needle |
| Effective mass of vibration system | 0.35mg |
| Operating needle pressure range | 1g ~ 1.8g (1.5g appropriate) |
| Frequency characteristic | 10 Hz to 30 kHz ± 3 dB |
| Channel separation | 30 dB or More (1 kHz) 25 dB or More (100 Hz to 10 kHz) |
| Output voltage | 3 mv (1 kHz, 50mm/s, RMS) |
| Output balance | 0.75 dB or Less (1 kHz) |
| Dynamic Compliance | 15x10-6Cm / dyne (100 kHz Horizontal / Vertical) |
| Static Compliance | 25x10-6Cm / dyne (optical) |
| Output impedance | 2k Ω (1 kHz) |
| Load resistance | 30k Ω ~ 100k Ω (Proper 47k Ω + 170 pf) |
| Mounting Dimensions | JIS and EIA standards |
| Exchange needle | PN-550E/II(¥7,000) |
| External dimensions | W 14.8x H 17x D 29 mm |
| Dead weight | 6.4g |