Features
Warranty length | 2 Years |
---|---|
Brand | Luxman |
Tech Specs
- Rated out: 2x 220W/120W (4/8Ω)
- Phono: 2.5/0.3mV, 47k/100Ω (MM/MC)
- Line: 180mV/47kΩ (BAL 180mV/55kΩ)
- Output volt: REC: 180mV, PRE: 1V
- Phono Freq: 20-20k Hz (±0.5dB)
- Line Freq: 20-100k Hz (-3dB)
- THD: <0.06%/<0.007% (8Ω, 20-20k/1kHz)
- S/N ratio (IHF-A): (MM/MC): 91/75dB+
- LINE SNR: 105dB or more
- Volume adjustment: LECUA1000
- Amplification circuit: ODNF 4.0
- Output: Bipolar 4-parallel push-pull
- Bass/Treble control: ±8dB @100/10k Hz
- Power supply: 230V/115V~ (50/60Hz)
- Power consumption: 380W/150W/0.5W
- Accessories: RA-17A Remote, AC cable
- Dimensions (WHD): 440 x 193 x 463mm
- Net weight: 29.3kg
Product Description
Luxman L-509X Integrated Amplifier merges together features of both a high-quality separate amplifier and a high performance integrated amplifier into one product. This design revolutionises the concept of “separates in a single unit”.
It is equipped with many features including LECUA1000, ODNF feedback circuit, premium components, a discretely configured buffer circuit in the pre-amp circuit’s output stage and a power supply with independent left and right channel blocking capacitors.
ODNF feedback circuit
An integral part of the design of the L-509X is Luxman's original ODNF amplification feedback circuit, featuring a high-speed primary slew rate, an ultra-wide bandwidth and a low level of distortion that is achieved by feeding back only the distorted components of the audio signal from the output of the amplification circuit. The L-509X is equipped with the latest Version 4.0 ODNF providing a dramatic enhancement of accuracy in distortion detection due to the triple-paralleled first stage error detection circuit. Lower impedance and a higher signal to noise ratio have been achieved due to the paralleled first stage and Darlington equipped second stage amplification circuit. A 3-stage Darlington circuit and a 4-parallel push-pull structure is used for the output stage, similar to the M-700u power amplifier. This enables the L-509X to drive speakers powerfully with rich dynamics and full expression.
Chassis structure
The L-509X features a top panel with a beautiful hair-line finish and widened venting to improve heat dissipation. The loop-less chassis structure restricts any increase in ground impedance. Analog level meters, illuminated with white LEDs, add to the elegant and stylish appearance.
User-friendly functions
The L-509X is equipped with a high-quality phono amplifier, compatible with MM and MC cartridges. This model offers all the functions that a high quality integrated amplifier should, including bass and treble tone controls, L/R balance adjustment controlled by LECUA, pre/power separation function, volume control and headphone output, all integrated into a single unit without compromising sound quality.
Copper alloy terminals
High-quality RCA terminals, made of copper alloy, are used for the LINE-1 inputs of the L-509X, combining the beneficial conductivity of copper and durability of brass. The L-509X features many custom-made components befitting a flagship model, such as the robust power supply and high-grade speaker terminals that are compatible with Y-connectors.
Gradation cast-iron feet
Thorough vibration countermeasures have been taken, using cast iron feet with a density gradient to eliminate resonance. The high grade, aluminium body remote control is also supplied as standard.
High stability power supply
The highly stable power supply circuit developed for the L-509X features a 600 VA EI-core-type power transformer and independent left and right channel large capacity blocking capacitors (10,000μFx4 per channel). This generous custom specification ensures that the power supply unit will not be affected by any load fluctuation.
Discrete buffer circuit
The L-509X is equipped with a discrete buffer circuit that is equivalent to the type used in the high-end Luxman C-900u separate amplifier. The clarity of the audio signal is preserved by this circuit whilst at the same time the following power amplification stage's driving force is significantly increased.
Prioritising audio quality
The use of crack-resistant peel coat PCBs for the amplifier boards prevent the quality of audio signals being adversely affected. This product prioritizes audio quality in features such as the non-angled, direct wiring pattern, known as the original Luxman’s Beeline construction, ensuring smooth signal transmission via the optimum shortest route.
Increased damping factor
Large-capacity, low resistance speaker relays are connected in parallel, enabling loss-less transmission of the powerful driving force that is generated by the generous power supply circuit and the amplifier output section of the L-509X. The use of 3.5mm2 cabling for the amplifier board output and the unit's damping factor of 370 enables the L-509X to drive all kinds of speakers accurately.
New LECUA1000 attenuator
Luxman's New LECUA1000 is at the heart of the preamp section and the volume adjustment control of the L-509X. This computerized attenuator is integrated with the amplification circuit, a feature integral to the high-end Luxman C-900u control amplifier. LECUA provides an ideal level control system which allows smooth and fine adjustment of the volume over 88 steps, thereby minimising the deterioration of audio quality at any point of the volume adjustment range.
An advancement of the New LECUA1000 is the 3D design layout. The attenuator circuit board is directly connected to the amplification circuit board. Signal routing has been minimized and efficiency has been successfully enhanced. In addition, this design is extremely resistant to external vibration and eliminates changes in audio quality over the volume control range. The robust nature of this system ensures longevity and durability.