Audio Database
XJ600S
Commentary

This is a stereo power amplifier manufactured using an output transformer developed by Nakamura Manufacturing Co., Ltd., which manufactures power transformers, etc., based on research conducted for many years.

300B and 274B are used for vacuum tubes.

The circuit is designed with no feedback.

The output transformer is a large transformer with a weight of approximately 4.5 kg and a weight of approximately 5.6 kg including the cover.
Permalloy is used for the core material, which was selected because it has an excellent distortion factor of more than 1 kHz compared with the equivalent standard of silicon steel plate, although it has the same low frequency range.

A cut-core transformer is used for the power transformer.

The transformer and choke are mounted on the base with Du Pont and Resorcein as vibration countermeasures.
In addition, Du Pont is used for the transformer cover and chassis to reduce vibration and reduce the effect on sound quality.

Based on the results of interviews, we use Multi-Cap and SCR France film capacitors, Panasonic X-PRO for electrolytic capacitors, Riken RMG for resistors, and Tokyo Kohon P-65CS for volume capacitors.

Glass-epoxy printed circuit boards are used for component mounting.
In the XJ600S, the wiring is done by a method similar to direct wiring using pin terminals at important points without depending only on the pattern. In addition, gold plating is applied to part of the pattern to suppress the deterioration of sound quality. In addition, gold plating is applied to the ground of 2 mm thick and 8 mm wide pure copper plate.
Acrotec 6N-UL10007 is used for the wiring material at important points.

WBT 0201 and 0730 are used as input / output terminals.

Thick stainless steel is used for the top plate of the chassis, and the design of the front panel is made of solid carin-knot with the consciousness of canterbury of Tannoy.

Acrotec 6N is used for the power cable.

Model Rating
Type Stereo power amplifier
Output 8W + 8W (8 Ω)
Input sensitivity 0.8V
Power consumption Approx. 165W
External dimensions Width 470x Height 230x Depth 330 mm
Weight Approx. 32 kg
Attachment Spare tube set