The L-509u features the new high quality electronic selector switch, which is the heart of the C-1000f pre-amp (one of Luxman’s 80th anniversary commemoration models). The sound quality deterioration using the new electronic input switch is now minimal, while channel separation and crosstalk efficiency were raised substantially in comparison with the previous L-550A / L-590A / L-507 /L-509SE. In addition the illuminated position indicator around the input selector knob, makes it much easier to view the selected position even from afar.
The integrated amplifier also benefits from the volume control used in the CL-88 vacuum tube preamplifier. At any single volume setting only two resistors are in circuit per channel. The less devices in the signal path, the purer the sound, the cleaner the music.
The amplifier section has not been ignored either; noise and distortion has been kept to a minimum with the introduction of ODNF version 2.2. The deep, rich, wonderfully textured tone is available here in Luxman’s most powerful integrated amplifier.
No compromises made for sound quality; designed for the musical purist. This is Luxman’s ultimate integrated amplifier.
* Equipped with ODNF version 2.2 for minimal noise and distortion.
* Solid brass, four gang attenuator from the CL-88 tube preamp.
* Electronic input selector, trickle down technology from the flagship C-1000f.
* Relay power source with large storage capacity.
* One pair of RCA inputs with Luxman's eddy current defeating technology,
* Peel Coat PCB with gold plated traces.
* Power Output Display Meter in dB
* Switch to split the preamp from the power amp.
* High quality phono stage.
* Two pairs of balanced inputs.
Tone Controls
The tone controls might seem like an anachronism in this day and age of minimalism, but they can be remarkably effective in bring to life a less than perfect music collection. We all have music gems in our collection that are sonicly challenging. A lot of the 1980's CDs are quite harsh sounding and the digital glare can be quite fatiguing. Reduce the treble slightly and while the harsh CD is not going to suddenly sound like a reference recording, at least it will now be perfectly listenable. Sit back relax, enjoy the music & forgot about the HiFi. When you want to bypass the tone controls, just engage the Line Straight switch.
Line Phase Sensor
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.
Specifications
Continuous Output
120W + 120W/8Ω Class AB 240W + 240W/4Ω
Total Harmonic Distortion
0.003% or less
(8Ω and 1KHz
0.03% or less
(8Ω and 20Hz~20KHz)
Input sensitivity/impedance
PHONO (MM)
: 2.5mV/47KΩ
PHONO (MC)
: 0.3mV/100Ω
LINE
: 193mV/55KΩ
BAL.LINE
: 193mV/55KΩ
MAIN-IN
: 1V/51KΩ
Output Voltage
TAPE: 193mV and PRE-OUT: 1V
Signal-to-Noise Ratio
(IHF-A)
PHONO (MM)
: Above 91dB
PHONO (MC)
: Above 75dB
LINE
: Above 107dB
Frequency Response
PHONO
: 20Hz~20,000Hz (±0.5dB)
LINE
: 20Hz~100KHz (+0, - 3.0dB)
Controls
Front panel
：
Volume and input selector, power switch, monitor switch, [phono] MC switch, balanced input switch, REC out selector and speaker switch, stereo / mono selector, bass & treble controls and balance control, direct line switch, preamp & amplifier separate switch, headphone jack, power on indicator and protection indicator
