Audio Database

Commentary

315 mm wide jacket size pre-main amplifier.

It adopts a new class A system using a synchronous bias circuit unique to Technics.
The synchronous bias circuit always keeps the output stage active by supplying a constant bias current to the output transistor to eliminate switching distortion. In addition, the new class A is independent of the signal path and bias current, so it is coupled with the action of a fast response diode with nearly ideal square characteristics to eliminate crossover distortion.

Equipped with a high-precision large power meter that can read directly from 0.001W.

It is equipped with a super base that automatically detects the fo (lowest resonance frequency) of the speaker and enhances the point.

The volume is a slide-type volume.

Equipped with electronic protection circuit.

A unique direct connector is adopted, and no pin cord is required for connection of ST-5 and SH-E5.

Model Rating
Type Integrated amplifier
<Overall characteristics of Tuner, Aux → SP out>
Effective power (EIAJ) 50W + 50W (8 Ω)
Total harmonic distortion factor 0.005% (Rated Output -3dB, 1 khz)
Frequency characteristic 10 Hz to 140 kHz -3dB
Signal-to-noise ratio (IHF-A) 99dB
Residual noise 0.7mV
Damping factor 30 (8 Ω)
Load impedance Main or remote : 8 Ω ~ 16 Ω
<Other characteristics>
Input Sensitivity / Impedance Phono MM : 2.5mV/47k Ω
Tuner, Aux, Tape : 150mV/27k Ω
Phono SN ratio MM : 81 dB (2.5 mV input)
Phono frequency characteristics 20 Hz to 20 kHz, RIAA ± 0.8 dB
Tone control Bass : ± 10 dB (50 Hz)
Treble : ± 10 dB (20 kHz)
<General>
Pwer 100 VAC, 50Hz/60Hz
Power consumption 87W
External dimensions Width 315x Height 98.9x Depth 248 mm
Weight 5.0kg