DENON AU-320
¥ 16,000 (around 1973)
¥ 19,000 (around 1976)
Commentary
Step-up transformer for MC cartridge.
Can switch between 2 types of input impedance and 2 cartridges.
The transformer is housed in an iron case on top of a triple shield to reduce the influence of SN ratio due to external induction noise.
Low-capacity code is used for output code.
Gold plated terminals are used for input / output terminals.
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Model Rating
| Type | MC booster transformer |
| Winding ratio (step-up ratio) | 1 : 10, 1 : 36 |
| Primary impedance | 40 Ω, 3 Ω |
| Secondary impedance | 4k Ω |
| Frequency characteristic | 10 Hz to 100 kHz |
| Deviation (for 1 kHz) | Within ± 1 dB |
| Left-right separation | 60 dB or More (20 Hz to 50 kHz) |
| Phase characteristic | Within 10 ° (20 Hz ~ 50 kHz) |
| Magnetic shield | 3-fold |
| Cord length | Approximately 1m |
| External dimensions | 97 mm wide x 65 mm high x 155 mm deep |
| Weight | 0.8kg |