Leben CS-300X(S) - EL84 Tubes Integrated Amplifier

CALL US NOW FOR MORE INFORMATION OR TO PLACE YOUR ORDER: 716-777-3100

The Leben CS-300XS is a Japanese EL84 push-pull tube integrated amplifier delivering 15 watts per channel with a frequency response of 15Hz to 100kHz. Designed by Leben Hi-Fi founder Taku Hyodo and recognized by the international audiophile press, the CS-300XS is widely regarded as one of the most musically coherent EL84 tube integrated amplifiers available — combining Japanese craftsmanship, a complete feature set, and a compact chassis optimized for high-efficiency two-channel systems.

Why EL84 Tubes

The EL84 output tube is chosen for its high input sensitivity and naturally open, detailed sound character. Leben chose EL84 for the CS-300XS because high sensitivity allows the circuit path to remain short — fewer gain stages between input and speaker terminals means fewer opportunities for phase shift and coloration. The four SOVTEK EL84 output tubes and two 12AX7A input tubes produce a measured THD of 0.7% at 10 watts, achieved through circuit simplicity rather than heavy negative feedback.

Highest-Grade Audio Components

• Precision industrial-grade resistors at ±1% tolerance
• First-stage bypass capacitor: SANYO OS-CON audiophile-grade electrolytic
• Output-stage bypass capacitor: NICHICON Fine-Gold
• Coupling capacitors: metalized polypropylene with mesh shielding
• Cathode resistors: 4W-rated for long-term reliability
• Output transformer: Leben original design with extended high-frequency bandwidth
• Tube shield bases: 24K gold plated
• Side panels: Canadian White Ash wood

Full-Function Integrated Amplifier

The CS-300XS is a self-contained integrated amplifier with five line-level inputs plus a tape monitor loop, covering CD players, music streamers, tape decks, and external phono preamplifiers simultaneously. Additional features:

• Headphone output with dedicated speaker/headphone selector switch
• Bass boost switch for near-field or small-room listening
• Selectable output impedance: 4, 6, or 8 ohms
• Operation lamp indicator and power LED
• Detachable AC power cable

Specifications

Frequently Asked Questions

What is the Leben CS-300XS?

The Leben CS-300XS is a Japanese EL84 push-pull tube integrated amplifier made by Leben Hi-Fi. It delivers 15 watts per channel, five line-level inputs, a headphone output, and selectable 4/6/8-ohm speaker output impedance in a compact chassis with Canadian White Ash wood side panels. It is recognized by the audiophile community as a reference EL84 integrated amplifier for high-efficiency speaker systems.

What speakers work best with the Leben CS-300XS?

The CS-300XS outputs 15 watts per channel and works best with speakers rated at 90dB sensitivity or higher. Efficient designs from Dynaudio pair well with the CS-300XS. The selectable 4/6/8-ohm output impedance allows accurate matching to a wide range of speaker loads.

Does the Leben CS-300XS have a built-in phono stage?

No. The CS-300XS has five line-level inputs but no built-in phono stage. A separate phono preamplifier is required to connect a turntable. Vinyl Sound Buffalo carries a full range of phono preamplifiers compatible with the CS-300XS.

What is the difference between the Leben CS-300XS and the Leben CS-600?

The CS-300XS uses EL84 output tubes and delivers 15 watts per channel. The Leben CS-600 uses EL34 output tubes and delivers 32 watts per channel, making it better suited for lower-sensitivity speakers. The CS-300XS is smaller, lighter, and preferred for high-efficiency systems and near-field listening. The CS-600 handles a broader range of speaker loads.

Is the Leben CS-300XS good for vinyl listening?

Yes. The CS-300XS is widely used in vinyl-focused systems. Its five line-level inputs accept the output of any external phono preamplifier, and its EL84-based circuit delivers the dynamics and tonal richness that make tube amplification a preferred choice for vinyl playback.

Can I use the Leben CS-300XS with headphones?

Yes. The CS-300XS includes a dedicated headphone output and a speaker/headphone selector switch, allowing you to switch between speakers and headphones without unplugging cables.

Where can I buy the Leben CS-300XS in the United States?

Vinyl Sound is an authorized Leben dealer in Buffalo, NY, serving customers across the United States. Purchase online or visit our Buffalo hi-fi store. Contact us at 716-777-3100 for expert system matching and ordering assistance.

Vinyl Sound — Buffalo's Hi-Fi Store. We carry Leben Hi-Fi alongside turntables, phono stages, loudspeakers, and accessories from the world's leading high-fidelity brands. Our team in Buffalo, NY provides expert guidance on every purchase.