Luxman C-10X


The C-10X control amplifier is a C-series model revision, the first in 10 years. Pre-order now available November/ December 2023

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Luxman C-10X

C-10X Detail

The Luxman C-10X is the successor to the Luxman C-900u released in 2013, but is a completely redesigned amplifier.

This new flagship pre-amplifier was developed with the aim of achieving the overwhelming audio quality that next-generation components should provide for the 100th anniversary of LUXMAN in 2025.

In the amplifier section, LUXMAN’s new LIFES amplification feedback engine, which was first adopted for the M-10X flagship power amplifier, is installed for the first time in a control amplifier.

Four fully-balanced preamplifier blocks, under completely identical operating conditions, achieve pristine purity and a natural, three-dimensional sound.

LUXMAN’s original electronically controlled attenuator, LECUA, is directly connected to the preamplifier section, translating volume control operation into attenuation in fine increments of 0.5dB.

The rotary encoder system is driven by a stylish volume knob, with its built-in heavyweight damping mechanism.

The Luxman C-10X is equipped with LECUA-EX, which reproduces the feel of traditional audio equipment, but with modern technology under the hood, and achieves smooth and tactile volume control, while thoroughly suppressing sound quality deterioration.

Luxman C-10X front

The exterior expresses a three-dimensional layering with a bold contrast between the authentic, blasted white finish front panel, inherited from the C-900u, and a fresh hairline finish top panel.

An exquisite combination of different finishes and shapes evokes a presence as a component, indicative of the richness, depth and delicacy within.

To attain its flagship pedigree, the C-10X control amplifier is a C-series model revision, the first in 10 years, with plenty of luxurious features unique to high-end products.

As the perfect partner to their M-10X power amplifier, it is equipped with their latest LIFES amplification feedback engine and as a controller, it draws out peak performance from any power amplifier, challenging the high expectations of audiophiles all around the globe.

By their innovation and imagination, they deliver the highest quality sound and listener satisfaction.

LIFES (Luxman Integrated Feedback Engine System)



Since its founding, LUXMAN has developed numerous amplifier circuits in order to achieve the highest performance and musicality required of high-end audio amplifiers.

ODNF (Only Distortion Negative Feedback) 1.0, which was first used in car audio amplifiers in 1999, achieved excellent static characteristics without feeding back the actual musical component of the audio signal to the main amplifier, providing natural distortion elimination, almost like a non-feedback equipped model.

As an epoch-making amplifier circuit that provides excellent sound quality, their system has steadily evolved up to its final version, ODNF-u, which debuted in 2020.

In 2021, in anticipation of the 100th anniversary, LUXMAN has completed work on a new amplification feedback system, “LIFES” , which has achieved even more realistic, fresh, rich musicality and overwhelming audio performance.

This year 2023 we will see it installed in their new flagship Luxman C-10X control amplifier.


  1. Simple, high performance

Their newly developed LIFES amplifier feedback engine greatly improves the static characteristics of the ODNF system and they have made improvements to the differential amplifier that detects distortion in the signal.

Various approaches were considered at the design stage and, by adopting an N-channel dual JFET with excellent audio characteristics in the first stage of the differential amplifier, distortion detection accuracy was greatly improved.

They have succeeded in reducing the number of parallel elements that make up the circuit while improving performance and, by drastically changing the operation configuration of the entire amplifier, they have effectively reduced distortion during amplification by 50%.

  1. Improving constant voltage circuitry

In order to support delicate amplification operations that accurately convey all of the nuances in a music signal, the combination of a dual packaged control elements and improvements to the constant voltage circuitry contribute to stable operation, as did the adoption of the US-made Zener diodes (Vishay), of course with the emphasis on audio quality.

The new, highly stable power supply is resistant to input and output load fluctuations, AC and DC gain variations and has excellent regulation performance that faithfully supports reproduction of the finest musical details.

  1. Improved response to environmental changes

For the purpose of stable operation, LIFES features four current mirror-type constant current circuits and dual transistors for each channel to thoroughly eliminate the effects of fluctuations in ambient temperature and power supply voltage in the listening room.

Furthermore, the temperature compensation of the current amplification stage combines a transistor and a thermistor to suppress bias fluctuations, improving the circuit for more stable operation.

LECUA-EX (Luxman Electric Controlled Ultimate Attenuator – Excellent eXperience)


Smooth and precise volume control with reduced sound quality deterioration

A volume control function is essential for audio amplifiers and it is necessary to have a mechanism that smoothly attenuates the voltage while maintaining the quality of the input source in order to output audio at a level suitable for listening on a fixed gain power amplifier.

LUXMAN’s original LECUA is an electronically controlled attenuator system that switches independent, high-quality fixed resistor steps for each channel, arranged orderly on the circuit board according to the position of the volume control.

Since the release of their C-1000f control amplifier, the 80th anniversary model released in 2006, the “LECUA1000”, embedded in the amplifier circuitry, saw very little change in sound quality due to the influence of external vibrations affecting the volume setting.

As a volume control system that does not deteriorate over time, it has been installed in many of their products.

The C-10X combines a high-precision rotary encoder with a newly developed heavyweight rotation mechanism to complete the “LECUA-EX” system, achieving even greater reliability and a natural, high-quality feel over 192 fine steps from 0 to 95.5dB.

Increased volume knob rotation speed and long-pressing of the volume buttons on the remote control moderately accelerate the increase or decrease of the output level.

Features Luxman C-10X

Features Luxman C-10X

Electric circuit

– Newly developed, high-quality sound with rich musicality, full of vitality, discrete amplification feedback engine LIFES adopted.

– Fully balanced configuration with 4 preamplifier blocks achieves a completely direct circuit from balanced input to balanced output.

– Combining our original LECUA electronically controlled attenuator with a heavy rotary mechanism realizes high-precision volume control over 192 steps of 0.5dB.

– The gain of the preamp circuitry that handles a wide dynamic range has been increased to 15dB, where its predecessor, the C-900u, was 12dB.

– Highly stable power supply combines a large-capacity CI core power transformer and custom-designed filter capacitors (3,300uF x 7).

– For the internal wiring, they have use original OFC cable that realises natural signal transmission with special wrap shielding for each non-plated copper core wire.

– 100μm thick, non-resistive, gold-plated peel coat circuit board tracing eliminates the dielectric effect of resistive coating for any audio circuit.


– LR balance adjustment, volume shift functions and bass/treble controls are handled by LECUA.

– Input offset function can preset the input and output levels for multiple input devices over a range of 0 to -6dB for each stereo input.

– Volume-linked loudness function matches human hearing characteristics (can be turned ON or OFF using the remote control).

– Versatile output mode switching allows you to choose between unbalanced, balanced and bi-amped according to your listening system.

– Bi-amp output mode levels for unbalanced connections may be set for each output (6dB).

– For balanced inputs 1 to 3, the phase preset setting (No.3 HOT<>No.2 HOT) is saved for each pair of terminals.

– Equipped with an unbalanced external pre-input terminal that can be connected to the pre-output of an AV system or similar.

Design and exterior

– Three-dimensional design common to the M-10X and D-10X, with large slanted sides and a bold contrast between the extra-thick front panel and chassis.

– Fluorescent display with various modes, zoom and dimmer functions with excellent visibility that shines against fine blasted white finish.

– Aluminum top panel with a fine hairline finish creates a contrast to the front panel.

Mechanical features and accessories

– Loop-less chassis structure eliminates the effect of rising ground impedance due to chassis currents and magnetic induction.

– Cast iron legs protect the unit from unwanted vibrations due to their structural density gradient.

– Original 27mm pitch, RCA terminals for unbalanced inputs and outputs, high-quality Neutrik XLR terminals for balanced inputs and outputs.

– Control input/output terminals can sync remote control signals between compatible devices and expand support for remote operation by other wireless devices in the future.

– Equipped with a new trigger input/output terminal that enables power syncing between compatible devices (daisy-chaining is also


Remote Luxman
  • Dedicated RA-20 remote control made from high-quality aluminum with excellent operability

Specifications Luxman C-10X

Specifications Luxman C-10X

Input sensitivity/Input impedance Unbalanced 180mV/45kΩ, Balanced 180mV/90kΩ

Output/input impedance Unbalanced 1V (Maximum 14.1V)/90Ω, Balanced 1V (Maximum 28.7V)/180Ω

Frequency response 20Hz to 20kHz (+0, -0.1dB), 5Hz to 110kHz (+0, -3.0dB)

Total harmonic distortion Unbalanced 0.005% (20Hz to 20kHz), Balanced 0.003% (20Hz to 20kHz)

Unbalanced 129dB (IHF-A), Balanced 132dB (IHF-A)

Amplification circuit LIFES 1.0

Volume adjustment LECUA-EX

Tone control BASS:8dB(100Hz), TREBLE:8dB(10kHz)

Input Unbalanced x 3, Balanced x 3

Output Unbalanced x 2, Balanced x 2

[Front panel] Power button, input switch selector, Volume control, FL display,

Line straight, Output mode, External pre input, Tone control (BASS/TREBLE), LR balance

[Rear panel] In/output terminals, Main power switch, Ground terminal, Trigger terminal,

Control terminal, AC inlet

Operation, Dimmer, Input switch selector, Output mode (unbalanced, balanced,

bi-amped), Balance phase switch, External pre input, Preset (Balance phase,

input level offset, bi-amp output level), Line straight, Loudness, Volume(up/down),

Volume mute, Zoom display

Power consumption TBC

Dimensions 440 (W) x (H) x (D) 434 (Including 16mm front knobs and 15mm rear terminals) (D) mm

Weight 19.8kg (Main unit)

Accessories Remote control (RA-20), Power cable

Panel detail




The history of the LUXMAN audio brand began in 1925, at the birth of radio broadcasting. LUXMAN has paid particular attention to the world of audio and has gained high reputation as a quality brand of high-end audio products both domestically and internationally. People tend to open their mind to natural things and react negatively to the unnatural. Natural sound, without coloration, develops an intimacy between the music and the listener. Naturally and purely reproduced music resonates with the listener’s imagination. LUXMAN reflects this effect in our product development. Music that features a performer's true passion and which a recording engineer has worked on precisely benefits from the fine nuances in sound which LUXMAN aims to reproduce, conveying the sprit of the artist and the enthusiasm of the performance. They strive to bring to the listener the experience of unlimited, pure music. Composers, performers and recording engineers have poured their true feelings into our favorite pieces of music. LUXMAN would be satisfied if the listener could experience those same passions through our products. LUXMAN has celebrated its 90th anniversary and hopes to discover new excitement through wonderful music and to continue to share that pleasure with everyone.


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