Audio Database

MA-20
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 scratch filter.

DSC method is adopted and various programs can be connected.

Equipped with FM multi-beacon.

Model Rating
Type FM/AM integrated amplifier
Rated output 15W + 15W maximum
10W + 10W (Unstrained Continuous)
Tuner sensitivity AM : 10 μ V/m (S/N 20 dB)
FM : 3 μ V/m (S/N 30 dB)
Frequency characteristic 20 Hz to 20 kHz ± 3 dB
Input terminal Mic:5mV
Phono MAG:3mV
Phono XTAL, Aux : 100 mv
Output terminal 4 Ω, 8 Ω, 16 Ω
Accessory circuit Scratch filter
Tape monitor
Attached terminal DIN terminal
Headphone
Auxiliary power supply
Semiconductor used Vacuum Tubes : 11
Transistor : 7 pcs
Diode : 12 pcs
Power supply voltage AC100V
Power consumption 90W (at FM)
External dimensions Width 453x Height 145x Depth 337 mm
Weight 13kg