Audio Technica AT-15Sa
¥ 25,000 (around 1975)
Commentary
VM type cartridge corresponding to the highest grade model.
Materials such as tapered cantilever, ultrafine particle polished SHIBATA needle, high-energy dual magnet, super permalloy pole piece are put into it, and it is assembled with ultra-precision by selected production staff.
The body uses die-cast metal to shut out harmful micro-vibrations and improve the low-level resolution while improving the shielding effect.
It has a gold plating finish.
Measured raw data is attached.
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Model Rating
| Type | VM Cartridge |
| Frequency characteristic | 10 Hz to 50 kHz |
| Output voltage | 2.7 mv (1 khz, 5cm/s) |
| Separation | 33dB(1kHz) |
| Output balance | 1.0dB |
| Needle pressure | 1 ~ 2g (1.5g standard) |
| Coil inductance | 370mH |
| Coil DC resistance | 470 Ω |
| Load resistance | 47k Ω ~ 100k Ω |
| Compliance | 9x10-6cm/dyne(100Hz) |
| Needle tip shape | SHIBATA |
| Effective mass | 0.45mg |
| Vertical tracking angle | 20 ° |
| External dimensions | Width 15.6x Height 15.5x Depth 30.0 mm |
| Dead weight | 8.5g |
| Attachment | Measured data |
| Exchange needle | ATN-15(¥12,500) |