Leben CS300X

Commentary

This is a bulb-type pre-main amplifier equivalent to the high-grade version of CS300.

The CS300 uses EL84 manufactured by SOVTEK for the output tube, while the CS300X uses EL84 manufactured by 84 manufactured by Mullard of England is used.
In addition, 5751 (12AX7A highly reliable tube) made by General Electric is used for the driver tube.

High-grade parts such as RMG resistor, OS capacitor, silk fiber silmic capacitor, etc. are used for the parts. The printed circuit board, which is considered to have a bad influence on sound, is eliminated, and the wiring is completely done by hand with HIFLON lead.
It is also equipped with a new output transformer developed for the CS300X.

Bus boost circuit is installed.

Equipped with a headphone circuit, which is directly output from the output transformer.

It has an operation circuit to inform the operation status of the output tube.

It says CS300X-Limited, but I think it is the same model.

Model Rating

Type	Stereo power amplifier
Output	15W+15W
Frequency characteristic	15 Hz to 100 kHz -2dB
Distortion factor	0.7%(10W)
Input sensitivity	600mV
Input	Line : Line 5 Tape monitor : 1 system
Output impedance	4 Ω / 6 Ω / 8 Ω (Switching Type)
Accessory function	Bus boost circuit Headphone circuit
Vacuum tube used	EL84 (Mullard) : 4 pieces 5751 (General Electric) : 2 pieces
Power consumption	82W
External dimensions	Width 360x Height 140x Depth 270 mm
Weight	10.5kg
Attachment	One power cable