¥ 46,800 (around 1986)
Pre-main amplifier with classAA technology.
ClassAA has a VC-4 amplifier configuration with two types of amplifiers for each L and R. One is a pure class A voltage-controlled amplifier that is free from switching distortion and crossover distortion, and the other is a current-driven amplifier that drives speakers dynamically.
As a result, the voltage-controlled amplifier is freed from the burden of current supply, and the voltage can be controlled faithfully to the input signal. The current-driven amplifier supplies the current required to drive the speaker and eliminates adverse effects such as impedance fluctuations of the speaker.
The power supply section uses a large transformer and a large capacitor with an instantaneous current supply capacity of 300A and excellent linearity. In addition, the output stage and power supply section are integrated with an ingenious configuration by a unique concentrated power block, eliminating the negative effects of electromagnetic fields from the root and eliminating high-frequency distortion caused by electromagnetic radiation.
Equipped with a Route 6 input jack, you can check the selected source with an indicator.
Equipped with the CD direct function, it is possible to connect directly to a volume without using the input selector.
Uses a large metal insulator to reduce adverse effects caused by external vibration.
|Effective output (20 Hz to 20 kHz)||60W + 60W (6 Ω, 0.005%)|
|Total harmonic distortion factor||0.003% (Rated Output -3dB, 20 hz to 20 khz)|
|Frequency characteristic||20 Hz ~ 20 kHz + 0 -0.2 dB
5 Hz ~ 120 kHz + 0 -3dB
|Damping factor||60 (8 Ω)|
|Load impedance||Main or remote : 6 Ω ~ 16 Ω
Main and remote : 12 Ω ~ 16 Ω
|Input Sensitivity / Impedance||Phono MM : 2.5mV/47k Ω
Tuner, Aux, Tape : 150mV/22k Ω
|Phono SN ratio||MM : 81 dB (2.5 mV input)|
|Phono frequency characteristics||30 Hz to 15 kHz, RIAA ± 0.8 dB|
|Tone control||Bass : ± 10 dB (50 Hz)
Treble : ± 10 dB (20 kHz)
|Loudness control (VR-30dB)||+9dB(50Hz)|
|Pwer||100 VAC, 50Hz/60Hz|
|External dimensions||Width 430x Height 97x Depth 290 mm|