Leben Cs-300x(S) Vacuum Tube Stereo Integrated Amplifier
A Modern Classic Crafted for Pure Musical Enjoyment
The LEBEN CS-300X(S) is a handcrafted Japanese vacuum tube integrated amplifier that combines timeless analogue engineering with modern component refinement. Designed for listeners who value musicality over specifications, the CS-300X(S) delivers a beautifully balanced presentation with rich tonal colour, exceptional midrange clarity, and the effortless musical flow that has earned Leben worldwide recognition among discerning audiophiles.
Powered by four EL84 output tubes and premium 12AX7A preamplifier valves, the amplifier delivers 15 Watts per channel, making it an exceptional partner for high-efficiency loudspeakers in dedicated stereo listening environments.
Whether paired with vinyl, high-resolution digital sources, or streaming components, the CS-300X(S) offers a listening experience that feels natural, intimate, and emotionally involving.
Japanese Engineering Focused on Music
Leben follows a philosophy of preserving musical integrity rather than pursuing unnecessary complexity. Every amplifier is carefully assembled using precision-selected components, premium transformers, and thoughtfully designed circuits that minimise signal degradation.
The CS-300X(S) embodies this approach by delivering an organic and emotionally engaging listening experience that allows recordings to retain their natural warmth, texture, and dynamic expression.
Natural Valve Performance
The EL84 output stage is celebrated for its ability to reproduce music with remarkable refinement and balance.
The CS-300X(S) presents vocals with exceptional realism, acoustic instruments with convincing texture, and orchestral recordings with impressive depth and spatial accuracy. Bass remains controlled and articulate, while the treble is smooth and fatigue-free, making extended listening sessions a genuine pleasure.
Its modest power output is complemented by excellent current delivery, enabling the amplifier to perform effortlessly when partnered with suitable loudspeakers.
Designed for Audiophile Systems
The CS-300X(S) has been developed for dedicated two-channel music systems where component synergy is paramount.
Its compact footprint makes it equally at home in refined listening rooms, study spaces, or premium living environments, while its elegant design reflects the understated sophistication of Japanese craftsmanship.
When matched with efficient speakers, the amplifier produces a remarkably immersive and emotionally rewarding musical presentation.
Key Features
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Stereo vacuum tube integrated amplifier.
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Maximum output power: 15 Watts × 2 (8 Ohms).
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EL84 (Sovtek) output tubes.
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12AX7A (Sovtek) preamplifier tubes.
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Handcrafted Japanese construction.
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Premium transformers and carefully selected components.
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Designed for dedicated stereo music systems.
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Excellent compatibility with high-efficiency loudspeakers.
Technical Specifications
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Model: CS-300X(S)
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Category: Stereo Integrated Amplifier
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Amplifier Type: Vacuum Tube Integrated Amplifier
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Power Output: 15 W × 2 (8 Ω)
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Output Tubes: EL84 (Sovtek) ×4
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Preamplifier Tubes: 12AX7A (Sovtek) ×2
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Weight: 13 kg
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Country of Manufacture: Japan
In the Box
Why Buy from SoundTrails
Selecting a premium vacuum tube amplifier is about more than choosing specifications—it requires careful consideration of speaker matching, source components, room acoustics, and long-term system synergy.
At SoundTrails, our Audio Video Architects help you build stereo systems that deliver exceptional musical performance tailored to your listening preferences. From expert product selection to system integration and after-sales support, every solution is designed to maximise the performance of your investment using genuine products and professional guidance.
