The C-10X is equipped with our new “LIFES” amplifier feedback engine and the latest version of our original electronically controlled attenuator, “LECUA-EX”, technologies developed to lead LUXMAN into our next century. Fully-balanced audio pathways are directly connected throughout the three-dimensional structure, achieving infinite silence, overwhelming instantaneous power, and a true sense of realism. This is the birth of the C-10X control amplifier, heralding a new era of pure musical reproduction.
Direct, three-dimensional connections between fully balanced amplifier circuit and attenuator ODNF*, a unique feedback system that has been matured as epoch-making amplifier innovation that provides the natural sound quality of a non-feedback equipped amplifier by feeding back only the distorted components of the amplified signal. In 2021, when developing our M-10X flagship power amplifier, we delivered LIFES as a new amplification feedback engine in order to acquire more realistic, fresh and rich musicality and overwhelming audio performance and now it is at the heart of our flagship C-10X control amplifier, the first model upgrade in 10 years. For the volume control system, we refined our LECUA electronically controlled attenuator that switches over a series of fixed resistors arranged in order in the circuit. LECUA-EX, which reads the motion pulses of a rotary encoder entirely disconnected from the audio signal path, thoroughly suppresses sound quality deterioration and enables smooth volume control. Our LIFES preamplifier circuit is assembled with bespoke components and is directly connected to the LECUA-EX system, the four units being laid out in a fully balanced configuration in completely identical operational states to realize the ideal structure as a preamplifier.
Various control functions for controlling the audio system
As a flagship model that stands at the top of our lineup, the C-10X not only has high-performance preamplifier circuitry that confidently drives the power amplifiers connected in the following stage, but also has a rich array of functions as a control center that adjusts the environment of the entire audio system. Preamplifier gain has been increased to 15dB (previous model C-900u had 12dB), allowing accurate handling of a wide range of levels from various input sources without distortion. In addition to a variety of output mode switching functions that allow you to select unbalanced, balanced or bi-amplified configuration, depending on your system, you can also use the volume shift function in 0.5dB steps via the electronically controlled attenuator LECUA-EX main volume control system. This allows you to adjust left and right balance (L: -6dB to R: -6dB) without causing deterioration, adjust the level for each output system in bi-amp mode (±6dB for each system) and adjust the output level for different listening situations. If it also equipped with an input offset function (0 to -6dB for each input terminal) that allows you to align the levels of multiple input devices, achieving a wide variety of control functions despite its simple circuit configuration.
Luxman C-10X Control Amplifier
Tech Specs
Input sensitivity/ Input impedance |
Unbalanced 180mV/45kΩ Balanced 180mV/90kΩ |
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Output/Input impedance |
Unbalanced rating 1V/90Ω, max. 14.1V Balanced rating 1V/180Ω, max. 28.7V |
Frequency response | 20Hz to 20kHz (+0, within -0.1dB) 5Hz to 110kHz (+0, within -3.0dB) |
Total harmonic distortion | Unbalanced 0.005% (20Hz to 20kHz) Balanced 0.003% (20Hz to 20kHz) |
S/N ratio (IHF-A) | Unbalanced 129dB Balanced 132dB |
Volume control | LECUA-EX |
Amplification feedback circuit | LIFES 1.0 |
Max. change amount of tone control |
BASS: ±8dB at 100Hz TREBLE: ±8dB at 10kHz |
Remote control functions | Operation, Dimmer, Input selector Output mode (Unbalanced, Balanced, Bi-amp) Balanced phase switching Channel preset (Balanced phase setting, Input level offset setting, Bi-amp output level setting) External pre-amplifier input Line straight, Loudness, Volume up/down, Mute Zoom display |
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Power consumption | 40W, 2.6W (at standby) |
External dimensions | 440(W) x 130(H) x 434(D) mm front side knob of 16mm and rear side terminal of 15mm included in depth |
Net weight | 19.8kg (main unit) |
Accessories | Remote control (RA-20), Power cable |