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CL-38uc

CL-38uc
Luxman
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Vacuum Tube Control Amplifier - Preamplifier

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    An attractive custom vacuum tube control amplifier

    The CL-38uC uses SRPP (Shunt Regulated Push Pull) circuitry for all stages to achieve the highest sound quality possible.A genuine phono equalizer is included, the MC-low and MC-high impedance (gain) inputs each have independent MC transformers and are selectable using the MC impedance lever switch.Tone controls enable the listener to fine tune the sound quality.Refined exterior design and newly added balanced inputs make this vacuum tube control amp a new standard for its generation.

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    Luxman CL-38uC - Vacuum Tube Preamplifier

    Authentic Valve Musicality. Handcrafted in Japan.

    Product Overview

    The Luxman CL-38uC is a meticulously engineered vacuum tube control amplifier designed for purist two-channel systems and serious vinyl enthusiasts. Combining classic valve topology with modern refinements, the CL-38uC delivers the unmistakable warmth, depth, and musical realism that only a true tube preamplifier can provide.

    Built in Japan and based on Luxman’s proven SRPP (Shunt Regulated Push-Pull) tube circuitry, the CL-38uC preserves signal purity while achieving excellent noise performance, wide bandwidth, and outstanding tonal balance. Its refined analogue design, premium phono stage, and luxurious build quality make it a centrepiece for any reference hi-fi system.

    Key Features & Highlights

    All-Valve SRPP Circuit Design

    The CL-38uC employs SRPP circuitry throughout all amplification stages, a classic tube configuration known for its linearity, musical flow, and dynamic expressiveness. The result is a rich yet controlled presentation with excellent resolution and natural harmonic structure.

    High-Performance MM / MC Phono Stage

    A standout feature of the CL-38uC is its fully integrated phono equaliser, supporting both Moving Magnet (MM) and Moving Coil (MC) cartridges. Dedicated MC step-up transformers and selectable impedance options ensure optimal matching for a wide range of cartridges—no external phono stage required.

    Balanced Line Inputs with Transformers

    In addition to standard RCA inputs, the CL-38uC includes balanced line inputs, each equipped with dedicated transformers for superior noise rejection and signal integrity—ideal for high-quality analogue sources.

    Precision Tone Controls with Bypass

    Fine-tune your system using bass and treble controls with selectable frequency ranges, or engage the tone defeat function for a completely uncoloured signal path when absolute purity is desired.

    Line Straight Mode

    Activate Line Straight mode to bypass unnecessary circuitry, delivering the cleanest possible signal for critical listening.

    Premium Japanese Craftsmanship

    From the thick aluminium front panel to the smooth rotary controls and internal component layout, the CL-38uC reflects Luxman’s dedication to long-term reliability, mechanical precision, and timeless aesthetics.

    Sound Quality

    The Luxman CL-38uC is revered for its organic midrange, expansive soundstage, and natural tonal density. Vocals sound lifelike, instruments possess convincing body and texture, and vinyl playback feels immersive and emotionally engaging. This is a preamplifier designed for long, fatigue-free listening sessions.

    Ideal For

    • Audiophiles seeking true valve sound without compromise
    • Vinyl lovers wanting a reference-grade MM/MC phono stage
    • High-end two-channel analogue systems
    • Pairing with both tube and solid-state power amplifiers


    Specifications – Luxman CL-38uC

    CategorySpecification
    Input Sensitivity / Input ImpedancePHONO (MM): 2.0 mV / 47 kΩ
    PHONO (MC High): 0.3 mV / 100 Ω
    PHONO (MC Low): 0.08 mV / 30 Ω
    LINE: 190 mV / 50 kΩ
    Balanced Line: 190 mV / 20 kΩ × 2
    Output Level / Output ImpedanceRated 1 V / 300 Ω
    Frequency ResponsePHONO: 20 Hz – 20 kHz (±0.5 dB)
    LINE / Balanced Line: 10 Hz – 70 kHz (within −3.0 dB)
    Total Harmonic Distortion0.006% or less (1 kHz)
    0.06% or less (20 Hz – 20 kHz)
    Signal-to-Noise Ratio (IHF-A)PHONO (MM): ≥ 68 dB
    PHONO (MC High): ≥ 63 dB
    PHONO (MC Low): ≥ 60 dB
    LINE / Balanced Line: ≥ 100 dB
    Tone Control±8 dB, selectable frequency range
    Bass: 150 / 300 / 600 Hz
    Treble: 1.5 k / 3 k / 6 kHz
    Low-Cut Filter30 Hz (−6 dB/oct)
    Circuit ConfigurationSRPP
    Vacuum TubesECC83S × 3, ECC82 × 5
    Power Supply230 V ~ (50 Hz) / 115 V ~ (60 Hz)
    Power Consumption35 W
    External Dimensions (W × H × D)440 × 169 × 307 mm
    Depth includes 19 mm front panel knobs and 12 mm rear panel terminals
    Net Weight13.3 kg (main unit)
    AccessoriesRemote Control (RA-19), Power Cable