Based on a push-pull topology for all amplifier stages, the cascode bootstrap push-pull differential input system provides high gain and improved high-frequency characteristics, while also reducing distortion caused by increased input impedance.
The equalizer amplifier and high-level tone control amplifier use a DC servo system, providing a completely direct connection from MM disc input to output.
This servo circuit minimizes the impact of servo system noise on the signal system and provides excellent DC drift control. This makes it effective even when used with equalizer amplifiers with high low-frequency gain.
The head amplifier section is configured with a differential push-pull input and an RET pure complementary output circuit. Furthermore, the input section, which affects sound quality, uses a direct connection system without capacitors.
A multiple power supply system is used, with independent RET and IC constant-voltage power supplies in a total of six locations on the left and right sides of the head amplifier, equalizer amplifier, and high-level amplifier.
The headphone amplifier section uses a dedicated DC-configuration Class A pure complementary direct-coupled amplifier.
A motherboard method using printed circuits is used to connect the unit amplifiers, the power supply, and some functions.
Each component is connected using a printed circuit conductor path, eliminating variations in characteristics due to uneven wiring, resulting in consistent performance.
The tone control section uses an 11-contact rotary switch with independent left and right positions, operating in 2dB steps.
A turnover switch is also provided.
Two loudness settings are available.