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In Living Stereo

Leben Audio

Legendary Japanese Tube Amplifiers

The Sound of Tradition: Richness Meets Resolution

Leben is synonymous with the finest tube amplification. These electronics are known globally for their exquisite point-to-point wiring, classic aesthetic, and above all, their ability to produce a rich, musical, and dimensional soundstage. A Leben Audio tube amplifier is an heirloom piece, offering performance that seamlessly blends vintage warmth with modern detail.

Leben Audio Tube Amplifiers

Leben CS1000P

$13,995

The flagship CS1000 is a versatile and powerful amplifier, known for its robust construction and ability to use Kt120 output tubes to great effect. The CS1000 is switchable between 100 watts in pentode and 70 watts in Triode, making it easy to drive any speakers correctly and get the type of sound you want.

Specifications

Tubes Compliment: KT120 x 4, 6922/6DJ8(ECC88) x 2, 6CG7/6FQ7 x 2
Output Power: 100W x 2 at 1KHz
Frequency Response: 10Hz – 150KHz. (-3dB)
Input Sensitivity: 0.4V at 50W
Input Impedance: 100K Ohms.
Output Impedance: 4/6/8/16 Ohms (Selectable)
Weight: 23.5 Kgs.
Dimensions: 455 (W) X 200 (H) X 335 (D) mm
Attachment: Detachable AC Power Cable x 1

Leben CS600X

$9,995

The Celebrated CS600X is a full size integrated amplifier using either EL34 or 6L6 output tubes for 28 watts and 32 watts per channel respectively. The amplifier comes supplied with EL34 tubes. The sound is open and warm, with great scale and transparency. It has a bass boost and a tape loop. Completely point to point wired with custom wound transformers. We’ve been a Leben dealer for over 20 years, and this wonderful amp has been one of the most popular amps we ever offered.

Specifications

Tubes Equipped: (4) 6L6GC (5881) SOVTEK, (EL34/6CA7 – Option), (4) 6CS7, (1) 6CJ3
Output Power: 32W x 2 (6L6GC) at 1KHz, 28W x 2 (EL34) at 1KHz
Frequency Response: 15Hz – 100KHz (-2 dB)
Distortion: 0.7%(10W)
Input Sensitivity: 900mV at 20W
Output Impedance: 4/6/8/16 Ohms (Selectable)
Weight: 22.5 Kgs.
Dimensions: 450 (W) X 360 (D) X 142 (H) mm
Attachment: Detachable AC Power Cable x 1

Leben CS300XS

$5,495

The compact CS300x utilizes the highly regarded EL84 output tubes, delivering a pure, beautiful, and dynamic sound. All point to point wiring makes this 15 watt masterpiece a stand out for its price. One of the greatest tube integrated amps ever made!

Features:

TAPE MONITOR.
HEADPHONE OUTPUT.
BASS BOOST SWITCH
SPEAKER/HEADPHONE SELECTOR.
VARIABLE OUTPUT IMPEDANCE: 4/6/8 OHMS.
Operation Lamp Indicator.
On-Switch Power Indicator LED.

Specifications

Tubes: EL84 x4, 12AX7 x2
Output Power: 15w
Frequency Response: 15hz – 100khz (-2 db)
Distortion: .07% (10w)
Input Sensitivity: 600mV
Input Impedance: 100K Ohms
Output Impedance: 4/6/8 ohms (selectable)
Power Consumption: 82W
Weight: 10.5 Kgs.
Dimensions: 360 w. X 270 d. X 140 h. Mm

Leben RS28CX 3x2

Leben RS-28CX

$8,495

The matching full-function preamp to the CS1000p amplifier. This has a refined line stage preamplifier and a wonderful moving magnet tube regulated phono preamplifier built in. In fact, the phono preamp is the same circuit as their separate RS30EQ phono preamp, making it a great value. This is a two chassis unit with the power supply located in the smaller chassis.

The RS-28CX is equipped with the CR type equalizer based on GE(General Electric/USA) 12AT7 authorized by J.A.N.(Joint Army & Navy) standard of US Army, and can reproduce a very high quality and clear sound without adding any NFB.

Specifications

Tube Compliment: 2 x 6CG7 (G.E.), 2 x 12AT7 (G.E.), 1 x 5Y3WGT
PHONO AMPLIFIER
Gain: 20.2dB
RIAA
Curve: Less than +-0.3dB.
Max. Input: 400mV (2KHz.)
LINE AMPLIFIER
Gain: 25.2dB
Max. Output: 80V (Variable) & 80V(fixed)
Output Impedance: 580 Ohms
Remaining Noise: 0.03mV
WEIGHT
Main Body: 7.0 Kg
Power Supply: 6.5 Kg
DIMENSIONS
Main Body: 352(W) x 240(D) x 175(H) mm
Power Supply: 233(w) x 240(d) x 175(H) mm
Attachment: AC Power Cable, Power Supply Connecting Cable.
Leben RS30EQ 3x2

Leben RS30EQ

$3,995

A great tube moving magnet phono preamp that lets you experience the glories of tube regulated phono preamp. Combine this with an external moving coil step up transformer and enjoy what analog reproduction is all about.

Specifications

Tube Compliment: JAN 12AT7A (G.E.) X 2, 6X5GT (G.E.) X 1
Gain: 23.5dB
RIAA Curve: Less than +/-0.2%
Input Impedance: 47Kohm(Normal)
Max. Input: 400mV (2KHz.)
Output Voltage: 175mV
Power Consumption: 17W
Weight: 6.0 kg
Dimensions: 340(W) x 140(H) x 240(D) mm
Attachment: Power Cord

Leben Amplifier and Preamplifier Comparison

Model

Component type

Tube configuration

Output / gain

Key features

CS1000P

Stereo power amplifier

KT120 × 4, 6922/6DJ8 × 2, 6CG7/6FQ7 × 2

100W × 2

Selectable 4/6/8/16Ω output taps

CS600X

Integrated amplifier

6L6GC or optional EL34/6CA7

32W × 2 with 6L6GC; 28W × 2 with EL34

Selectable output impedance, bass boost, tape loop

CS300XS

Integrated amplifier

EL84 × 4, 12AX7 × 2

15W

Headphone output, bass boost, selectable 4/6/8Ω output

RS-28CX

Full-function preamplifier

6CG7 × 2, 12AT7 × 2, 5Y3WGT

Line gain: 25.2dB

Moving-magnet phono stage; separate power supply chassis

RS30EQ

Moving-magnet phono preamplifier

12AT7A × 2, 6X5GT × 1

Gain: 23.5dB

Dedicated MM phono preamplifier

Choosing the Right Leben Amplifier for Your System

Leben offers integrated amplifiers, a stereo power amplifier, and dedicated preamplification components. The right choice depends on your loudspeakers, source components, available space, and whether you prefer an integrated or separate-component system.

Consider these factors when comparing the models:

  • Speaker compatibility: The CS300XS, CS600X, and CS1000P have different output capabilities. Consider speaker sensitivity, impedance, room size, and listening level.
  • Integrated or separate components: The CS300XS and CS600X combine preamplification and power amplification. The CS1000P is a power amplifier intended to work with a suitable preamplifier.
  • Tube configuration: The CS600X supports 6L6GC or EL34/6CA7 output tubes. Confirm the correct configuration and setup requirements before changing tubes.Analog playback: The RS-28CX includes an MM phono stage, while the RS30EQ is a dedicated MM phono preamplifier.System flexibility: Consider whether you need a headphone output, tape loop, phono connectivity, or selectable speaker output impedance.

Explore our loudspeaker collection  to consider speaker and amplifier matching.

Building a Leben Tube Amplification System

A Leben system can be built around an integrated amplifier or separate preamplification and power amplification components.

The CS300XS and CS600X combine the preamplifier and power amplifier stages in one chassis. For a separate-component system, the CS1000P power amplifier can be paired with a compatible preamplifier, such as the RS-28CX.

For vinyl playback, the RS-28CX includes a moving-magnet phono stage, while the RS30EQ provides a dedicated MM phono solution. Check cartridge compatibility and the requirements of your other components when planning the signal chain.

Explore our turntable collection  and phono-related components  when building an analog system.

Testimonials

What Our Customers Say

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Alex U. profile picture
Alex U.
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The best stereo dealer in NYC, especially if you’re looking for analog equipment. Steve M. is down to earth and very easy to talk to. He is an industry veteran who really knows his stuff and is full of great advice and options no matter what your budget is.
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J-ray
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I first went to In Living Stereo in 2010 or so with a modest budget and walked away with a used Rega P5, new cartridge and a phone stage. Later I got Prima Luna integrated amp then Dynaudio Focus 350 floor standing speakers. Eventually, as time has gone by, I upgraded to a Leben 600x, Leben phonostage and Devore Super Nines. As I built up my system bit by bit, Steve Mishoe and Steve Cohen have guided me to a place where I am truly satisfied. I can't thank them enough! They have great taste and can work with any budget. I trust them implicitly and am thankful that a place like this is here in New York City. Highly recommended!
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Larry Ginsberg
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I have been a faithful customer of In Living Stereo for over the last ten years and believe it is a must-visit even if you are not a hardcore audiophile. First, hands down, the store has the best audio equipment in terms of sound realism, price, durability, and aesthetics. (Note that they don't carry video equipment.) Second, the store is owned and operated personally by Steve M., whose knowledge and attention to detail are unmatched. Steve gives you personal attention, helping you select the best equipment in your price range that meshes and achieves the best collective sound possible. Importantly, Steve doesn't skimp on the details and matches, for example, speaker wires, interconnects, and sound conditioners to complement cartridges to turn tables. Finally, Steve is an extremely nice and honest individual, singularly focused on making sure you're happy with your purchases for years to come. As an added bonus, he listens to all types of music -- and is happy to audition the equipment with any music you bring.
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andrew lux profile picture
andrew lux
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My old amplifier shorted out and stopped working. Every amplifier I had since I was a kid was either a worn hand-me-down, or thrift store finds. I finally have enough money to invest in something nicer. I stoped by In Living Stereo, and Steve showed me a bunch of different options for an amplifier. He was was super helpful with all my questions. I've never had a good Amplifier despite collecting records for over 20 years. I looked at getting a refurbished vintage amp, but found that most prices were the same as a new one. With Steve's help, I picked up the Rega Brio, and my records have never sounded so good. Even music streaming sounds so much better. I highly recommend stopping by and talking stereo equipment. You never know just how good your collection can sound.
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Andrew Ludke profile picture
Andrew Ludke
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It's audio nirvana at In-Living Stereo. You won't find a more knowledgable and passionate group to explore the sonic possibilities. I am blown away everytime I stop in to listen.
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Tanner Mahoney profile picture
Tanner Mahoney
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I walked into In Living Stereo as a beginner audiophile and was greeted by Steve who walked me through various speaker brands and educated me on buying high quality speakers. The store is amazing, a well curated selection and really cool listening rooms. He let me listen to a bunch of the high end speakers on the floor. He ended up giving me a great deal on a floor version of Dynaudio speakers, which are my first pair of high fidelity speakers. Steve was super helpful and FaceTimed me to help me set up the speakers at home. Highly recommend!
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Peter McCormick
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I purchased two great sounding systems - and learned a ton about hi-fi - from Steve over the years. It is a joy to listen to records on world class equipment at the In Living Stereo showroom.
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Tom profile picture
Tom
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I was looking for a turntable and a pair of speakers. Steve set up a couple of systems for me to listen to and I was able to compare them (Spendor and Devore speakers). He was knowledgeable and patient. I also a got chance to listen to the G.I.P. horn speakers. It was like the musicians were in the room with me, they were truly amazing. Too bad G.I.P. is way outside of my price range. I had a great experience.
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A D profile picture
A D
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Steve was very helpful in teaching me about stereos and what to look for in audio equipment. I didn't have a huge budget but it sounded great, even better than I expected! He showed me the Rega Planar 3 turntable and the Dynaudio bookshelf speakers.

Frequently Asked Questions About Leben Amplification

Leben amplifiers are known for their handcrafted construction and musical presentation. The following questions address common considerations when choosing Leben amplification for a high-end stereo system.

Leben amplifiers are designed with a focus on musicality, using tube-based circuits and hand-wired construction to deliver a natural and engaging sound. Their emphasis on tonal balance and simplicity sets them apart from many modern high-power designs.

Yes. Leben amplifiers are widely used in high-fidelity stereo systems, especially when paired with high-efficiency speakers. Their detailed and expressive sound makes them a strong choice for serious music listening.

Because many Leben amplifiers have lower power output, they perform best when paired with efficient loudspeakers. Proper system matching helps ensure optimal dynamics, clarity, and overall performance.

The CS300XS is a 15-watt integrated amplifier using EL84 output tubes. The CS600X is a larger integrated amplifier rated at 32 watts per channel with 6L6GC tubes or 28 watts per channel with EL34 tubes. Speaker compatibility and room requirements should be considered when comparing them.

The CS1000P is a stereo power amplifier rated at 100 watts per channel, while the CS600X is an integrated amplifier that combines preamplification and power amplification. The CS1000P requires a suitable preamplifier to complete the system.

The product listing identifies 6L6GC tubes as standard and EL34/6CA7 as an option. Confirm the correct configuration and any required adjustments with the manufacturer or an experienced technician before changing tubes.

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Experience Leben Audio in Our NoHo Showroom

Audition the legendary warmth and sonic purity of Leben Audio tube amplifiers. We offer dedicated, private listening sessions where you can hear their electronics drive various loudspeakers. Consult with our experts to understand how Leben can elevate your analog playback experience.