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Product Information

  Leben > Integrated Amplifier

CS-300XS is equipped with Electro Harmonix EL-84, which is probably the best quality current production tube of this type in the market.. A high input sensitivity of EL84 does not require a complicated circuit and accordingly, it produces a very low distortion output signal.

For the Driver circuit, we used the NOS Five-Star-Tube from GENERAL ELECTRIC 5751 (premium version of 12AX7A) which has passed JAN (Joint Army & Navy) standard of U.S. Army and has a very stable and reliable quality.

Other luxurious parts included are

  • Tube Shield-Base: 24K gold plated.
  • 24K Gold-Plated Knobs.
  • SIDE-WOOD PANEL: Canadian White-Ash".

High End Audio Grade Components:

  • RESISTORS: Precision Industrial Grade +/-1%
  • FIRST-STAGE BY-PASS CONDENSOR: An ultimate audio condensor "OS Condensor" developped by "SANYO"
  • LAST-STAGE BY-PASS CONDENSOR: Silk-Shielded "SILMIC Condensor" developped by "ELNA"
  • JOINT CONDENSOR: "Metalized Polypropylene Condensor" with "Mesh-Shielding".
  • NF OVERSHOOT PREVENTION CONDENSOR: Copper-leaf Styrol Condensor.
  • CATHODE RESISTOR: 4W type.(Instead of 3W type)
  • DIODE: TOSHIBA 3TH41 for Damper.
  • OUTPUT TRANSFORMER: Newly developped Transformer with wider range for high frequency
  • WBT type binding post

Functions of amplifier:

  • BASS BOOST SWITCH (+3dB & +5dB in the range below 100Hz.)
  • Operation Lamp Indicator
  • On-Switch Power Indicator LED.
Tubes used EL84 (MULLARD) X 4
5751(G.E.) X 2
Inputs 5 x line
1 x tape monitor
Output Power (standard) 15 W X 2
Frequency Response 15Hz - 100kHz (-2 dB)
Distortion 0.7% (10W)
Input Sensitivity 600 mV
Output Impedance 4 / 6 / 8 Ohms (Selectable)
Power Consumption 82 W
Weight 10.5 kg
Dimensions 360 (W) x 270 (D) x 140 (H) mm
Accessories Detachable AC Power chord x 1





Main tubes EL84 EL-84 (Electro Harmonix) x 4
First stage by-pass Cerafine condensor ELNA OS condensor - Sanyo
Last stage by-pass Cerafine condensor ELNA Silk shielded Silmic condensor
NF overshoot prevention Polypropylene condensor Copper leaf Styrol condensor
Coupling (joint) Metalized condensor Polypropylene with mesh shield
Resistors RM grade +/- 3% RM grade +/- 1%
Cathode resistors 3 W type KAO 4W type JRM
Diodes Toshiba 3NZ41 standard Toshiba 3TH41 for damper
Output transformer   Expanded high frequency
Tube base shield Aluminium 24 K gold plated aluminium
Speaker terminal   WBT
Power indicator No Yes
Side wood panels Japanese real wood Canadian white ash

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Specifications are subject to change without prior notice.
For more information about this product, please visit the manufacturer's website.

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