Audio Database

MAT-4
Commentary

Solid-state premain amplifier with all-silicon transistor configuration.

A single diffused mesa type power transistor is used for the output circuit, and SEPP-OTL system with Darlington connection is adopted.

Equipped with a purely electronic automatic recovery protection circuit.

Equipped with tone control, defeat switch and rumble filter.

Equipped with a latch filter.

Equipped with a loudness control.

Equipped with a level meter.

Uses DSC method.

Model Rating
Type Pre-main amplifier
Maximum power output 120W+120W
100W + 100W (non-clip)
Rated output 60W + 60W (Strain Rate 0.2% or Less)
Frequency characteristic 10 Hz to 100 kHz ± 1 dB
Input terminal Phono1, 2, Mic : 2mV/50k Ω
Tape Head : 1.5mV/200k Ω
Tuner : 100mV/200k Ω
Aux : 100mV/75k Ω
Output terminal 8 Ω, 16 Ω
Accessory circuit Tone control
Loudness control
Scratch rumble
Attached terminal DIN terminal
Headphone
Auxiliary power supply terminals
Semiconductor used Transistor : 37
Diode : 19 units
Thermistor : 4 pcs
Power supply voltage AC100V/110V
Power consumption 40W (No Signal)
External dimensions Width 453x Height 145x Depth 337 mm
Weight 13.5kg