DENON/COLUMBIA MA-30
¥ 42,800 (around 1968)
Commentary
A comprehensive FM/AM amplifier selected as a Good Design by the Ministry of International Trade and Industry.
Uses FM high-sensitivity cascode tuner.
Equipped with a rumble filter and a scratch filter.
DSC method is adopted, and connection of various programs is possible.
SEPP circuit is adopted.
Equipped with FM multi-beacon, FM-AFC and microphone mixing circuit.
Model Rating
| Type | FM/AM integrated amplifier |
| Rated output | 20W + 20W maximum 17W + 17W (Unstrained Continuous) |
| Tuner sensitivity | AM : 30 μ V/m (S/N 30 dB) |
| Frequency characteristic | 20 Hz to 25 kHz ± 1 dB |
| Input terminal | Tape HD:1.5mV Phono MAG:3mV Phono XTAL:100mV Aux:300mV |
| Output terminal | 4 Ω, 8 Ω, 16 Ω |
| Accessory circuit | Rumble scratch filter Loudness control Tape monitor |
| Attached terminal | DIN terminal Headphone Auxiliary power supply |
| Semiconductor used | Vacuum Tube : 14 Semiconductors : 21 |
| Power supply voltage | 100 VAC / 110 VAC (Switch Switching Type) |
| Power consumption | 100W |
| External dimensions | Width 453x Height 145x Depth 337 mm |
| Weight | 13kg |