The Leben CS-300F is an integrated amplifier with 15 watts of tube power - through the GE JAN-6197 valves previously used only for computers (JAN - Joint Army and Navy). They are low distortion and long life valve that Leben sourced many years ago and have been seeking the best circuit design to bring out the best performance in this clean tube. The driver circuit utilises a very high quality tube, the 17EW8 (Hi-Fi) produced specifically for hifi by a major Japanese electronics manufacturer. The result - a nice full sound and the bonus of a very high quality headphone output.
Difference between CS-300F and CS-300XS: The main difference between two models is the sound characteristics due to different output valves. The sound of CS300F is more modern and clear whereas and the sound of the CS-300XS is more valve-like (tube-like) / warmer, therefore a choice can be determined based on your own sound preference. Leben works beautifully with our DeVORE FIDELITY Speakers!
- Highest grade of audio components used throughout.
- Headphone output
- Recording Out RCA terminals
- Balance control
- Tape Monitor switch
- Five channel input
- Speaker / Headphone selector switch
- Bass Boost 0, +3dB and +5dB below 100Hz
- WBT type Binding Posts
- Self-biasing circuit accepts new tubes without any manual bias adjustments
- Natural wood side-panels made from Canadian white-ash. This wood is very hard and heavy and is often used as a material for baseball bats and oars for row boats!
- Variable Output Impedance: 4 / 6 / 8 Ohm
Valves: 4x JAN-6197 (GE) and 2x 17EW28 (Hi-Fi)
Output Power: 2x 15W RMS
Headphone Power: 1000mW
Distortion: 0.7% (10W)
Frequency Response: 15Hz - 100kHz (-2dB)
Distortion: 0.7% (10W)
Input Sensitivity: 600mV
Input Impedance: 100k Ohms
Output Impedance: 4 / 6 / 8 Ohms (selectable)
Output Impedance (Headphone): 300 Ohms
Power Consumption: 82W
Power Supply: 240V / 50Hz / 65W
Weight: 11 kg (approx)
Dimensions: 36cm x 27cm x 14cm / 14" x 9" x 5.5" (W x D x H - approx. including knobs and terminals)
"I've always found the Leben components I've owned or reviewed to be of high quality, reliable, have low cost of upkeep, to represent good overall value for their level of performance, have an attractive appearance, have good sound quality and musicality, and just be a general joy to experience on a day-to-day basis."
Leben Hi-Fi Stereo Company is a Japanese manufacturer of tube amplification. The designer and owner of Leben is Mr. Taku Hyodo who is ranked as one of the best eight tube audio design engineers in Japan.
Mr. Hyodo is highly experienced Hi-Fi engineer having worked for Luxman in the past, and is also a good player of guitar and some different musical instruments (In fact, he once was a professional guitarist).
He is also a collector of premium tubes such as 3CSS, 12AT7, E288CC, 6L6GC (5881), all of which are (will be) used in Leben amplifiers at their best capabilities based on Leben's technology.
Mr. Hyodo left Luxman and established his own "Kouri Denki Co."(production of electric/electronic components, parts & PCBs) in 1979 when he was 30 years old. Besides producing electronic components and parts, he also has been continuing production of amplifiers under "KFH" brand name mainly for private requirements from Cafe bars, restaurants, etc.
The first commercial based product "TRIODE 33"(under "KFH" brand) was released in 1991 with very premium tube 3C33, and a first model under “Leben” brand was a power amplifier RS-35a (with 6L6GC) released in 1995, and then a preamplifier RS-28c (with E288CC) in 1998. (RS-28c was recently renewed as RS-28CX with G.E. 6CG7).
My.Hyodo His amplifiers are more of a product of passion, and not many models are produced, however, several people in Japan have actually gathered and set up a fan club called "Leben Audio Lovers’ Club". Members are always waiting for a new model from Leben, which amazes them each time. In light of these circumstances, Mr. Hyodo has started to produce lower-cost amplifiers such as CS-200, CS-250, CS-300, CS-300X to allow more music lovers a possibility to enjoy Leben’s tube sound without investing too much.
All of the Leben products are hand made by well trained and experienced people, and are all beautifully finished with high quality components by point to point wiring.
All products are still made in Japan, and Leben product’s owners can expect long life and high reliability as well as a highly musical and rewarding performance.
All Leben products are based on “Self-biasing circuit”(even by sacrificing the output power on specification) in order to allow users to replace tubes without bias-adjustment and to continue stable operation.
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