Technics SH-305MC
¥ 65,000 (released in December 1981)
Commentary
MC step-up transformer with amorphous core.
We have developed and adopted amorphous magnetic alloys with high permeability and low magnetic loss.
The multi-spiral toroidal core and four shield structure realize a high S / N ratio and reduced inductive hum.
Equipped with 4 types of input impedance switching switches : Pass, Low, Middle and High.
Model Rating
| Type | Amorphous MC boost transformer |
| Transformer | Amorphous toroidal core |
| Recommended cartridge impedance | Pass (when using MM cartridge) Low : 3 Ω Middle : 15 Ω High : 30 Ω |
| Frequency characteristic | 3 Hz to 300 kHz 20 Hz to 100 kHz ± 0.2 dB |
| Total harmonic distortion factor | 0.001% or Less (1 kHz) |
| Channel separation | 90 dB or More (1 kHz) |
| Channel balance | 0.2 dB or Less (1 kHz) |
| Shield type | With a permalloy double shield Outer case cast iron Copper-plated four layer shield |
| Recommended load impedance | 47k Ω |
| External dimensions | Width 60x Height 90x Depth 210 mm |
| Weight | 4.5kg |