Luxman Audio C-800f Control Amplifier

MSRP: $19,000

Product Description

Luxman C-800f Preamplifier Specifications

Input Sensitivity/
Input Impedance
Single Ended 300mV/47.5KΩ
Balanced 300mV/95.0KΩ
Output/
Output Impedance
Single Ended rated 1V/564Ω maximum 5.5V
Balance rated 1V/1,128Ω maximum 11V
Total Harmonic Distortion Single Ended     0.009% (20Hz~20KHz)
Balanced     0.005% (20Hz~20KHz)
Frequency Response 5Hz~20KHz +0, – 0.1dB
1Hz~117KHz +0, – 3.0dB
Signal-To-Noise Ratio Single Ended 123dB (IHF-A)
Balanced 126dB (IHF-A)
Input Single Ended – 3 systems
Balanced – 3 systems
Output Single Ended – 2 systems
Balanced – 2 systems
Attachment
[Front panel] Operation switch, input selector,
Volume control and fluorescent display,
Output mode switch and balance phase Change-over Switch
[Rear panel] Main power switch and signal ground terminal,
Remote output (2 systems on RJ11), line phase sensor,
AC inlet
[Remote control function] Operation and input selector, volume rise/down, mute,
Output mode,  phase change, dimmer and channel pre-setting

 

Power supply voltage AC 115V (50/60Hz)
Electric power consumption 24W (fully operational), 2.3W (stand by)
External size W x H x D(mm) 17.3”  (440) × 4.6” (117) × 16.8” (427)
Weight 39 lbs. (17.6) Kg
Accessories Remote control (RA-80), power cable (JPA-15000)

 

 

Analog Audio's Review Of The Luxman C-800f Control Amplifier

Luxman is pleased to announce the receipt of a 2007 GRAND PRIX award from Stereo Sound in Japan for the Luxman C-800f Control Amplifier This is quite possibly the most prestigious award in high end audio today.

 

Using trickle down technology from the award winning C-1000f control amplifier. The Luxman C-800f is a fully balanced design and includes three single-ended and three balanced inputs, two single-ended and two balanced outputs. Phase switch on the front panel. Has Luxman’s latest compact version of the LECUA 1000-WM volume control (LUXMAN Electric Controlled Ultimate Attenuator with Weighting Matrix Technology).  as well as the electronic input selector.  Luxman’s most advanced ODNF circuit is employed, release 2.4. as featured in the C-1000f, delivers state-of-the art musical performance.

LECUA 1000WM unifies the amplifier,  volume control functions and power supply in a three dimensional module, resulting in a circuit that is electrically very simple. Long-term reliability is excellent, with performance and sound quality that will remain unchanged also after prolonged use. The functions of the attenuator and the left/right balance control are covered by the LECUA 1000WM circuit as well, eliminating the need for additional circuit stages. Keeping the configuration simple helps to maintain high performance and sonic purity.

LECUA 1000WM is a radically different volume control principle that eliminates all variable resistors from the signal path and provides top-notch performance and sound quality. Because the music signal is not affected by changes in impedance, high signal-to-noise ratio and low distortion are maintained at any volume control setting. Unlike conventional volume controls, LECUA 1000WM does not introduce a change in impedance at any volume setting. Consequently, there is no deterioration of S/N ratio and frequency response remains totally uniform. The benefits are especially apparent at settings that correspond to normal listening levels, because the sound remains perfectly transparent and the tonal quality is not altered in any way. Because LECUA 1000WM is an electronic circuit employing fixed-value resistors, there is virtually no left/right tracking error also at low volume levels. Since channels can be kept separate, crosstalk also does not present a problem

 

MORE LUXMAN C-800f AWARDS

AUDIO ACCESSORY (Japan) – Silver

MJ TECHNOLOGY (Japan)    –  Technology of the Year

STEREO (Japan)                     –  Special Commendation (Feb. 2008)

 

There are four channels of amplification / attenuation on the Luxman C-800f. One can choose between two individual pairs of single-ended outputs, which can then be set to different output levels, such as in a bi-amplified system or use all four channels for the fully differentially balanced outputs.

The Luxman C-800f utilizes 100 millimicron thick gold-plated peel coat PCB which reduces resistance to a minimum in all audio circuits.

The delicate music of the low level signal is protected from unnecessary vibration and degradation, by the installation of cast iron pillars for supporting the chassis.

The Luxman C-800f has a robust amplifier section capable of driving any amplifier, uses 6,600μF of capacitance. Up to 11 volts are available per channel in balanced mode.

In single ended mode; two pairs of outputs are available, which can be adjusted  individually from each other, for example, a 6 dB difference between both outputs can be set to allow for the different gain structure of two different amplifers in a bi-amping situation.

Custom parts, such as resistors & condensers are used extensively throughout this design. Kappa alloy RCA sockets are used because of their high conductance & low resistance. Non-magnetic, gold plated AC inlet.

In order for an amplifier to multiply the signal cleanly, it first needs to receive clean electrical power. Luxman view the AC input with great concern, just as serious listening tests are applied to the power cables, so too is the AC inlet built to rigorous standards. With the C-800f, the AC inlet starts with high purity brass which subsequently receives a non-magnetic nickel plating and finally gold-plating is administered in order to maintain a low resistance.

Here is a clever device found on the back of every Luxman powered product. You press the button and it will check the phase of the electricity it is receiving. If the AC outlet in the wall is incorrectly wired, meaning the live and neutral are swapped, a red LED will turn on to warn you. You only need to press it once, when you are installing a product to check that everything is in order. Its a simple mistake, that occurs often, and one that can seriously undermine your listening enjoyment.