Let’s delve into the fascinating world of LUXMAN amplifiers and explore the innovative technology behind their renowned products. In this blog post, we’ll focus on two exceptional models: the L-505uXII and the L-509Z. Buckle up, audiophiles, because we’re about to embark on a sonic journey!
1. L-505uXII: Refinement and Multifunctionality
The L-505uXII is the eagerly awaited Mark II version of the popular L-505uX, which has been at the forefront of pre-amplifier design since its launch in 2011. Here’s what makes it stand out:
1.1. ODNF Version 4.0: Innovative Amplification Feedback Circuit
- The integral part of the L-505uXII design is LUXMAN’s original ODNF (Only Distortion Negative Feedback) amplification feedback circuit.
- This circuit achieves excellent static characteristics and natural sound quality by feeding back only the distorted components of the audio signal from the amplifier’s output circuit.
- The latest Version 4.0 ODNF circuit enhances accuracy in distortion detection, resulting in accurate reproduction of even the gentlest audio signals.
- The output stage, with its parallel push-pull structure, delivers 100W+100W (8Ω) and 150W+150W (4Ω), ensuring dynamic musical expression.
1.2. LECUA: Luxman Electronically Controlled Ultimate Attenuator
- LECUA lies at the heart of the pre-amplifier section and sound volume adjustment function.
- It provides smooth and fine volume adjustment over 88 steps, minimizing audio signal deterioration.
- Left and right balance adjustment is integrated into the attenuator’s control functions.
- The tactile design allows intuitive manual adjustment of the attenuation level.
1.3. Discrete Buffer Circuit
- The L-505uXII features a new discrete buffer circuit in the output stage of the pre-amplifier.
- This buffer circuit ensures accurate reproduction and minimizes sound quality degradation.
- The result? An amplifier that exudes sophistication and authenticity beyond its class.
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2. L-509Z: Unprecedented Performance
The L-509Z takes the concept of a traditional integrated amplifier to new heights. Here’s why it’s a pinnacle of LUXMAN’s design:
2.1. LIFES: Luxman Integrated Feedback Engine System
- The L-509Z simultaneously uses LUXMAN’s new generation amplification feedback engine “LIFES” in both the preamplifier and power amplifier sections.
- Independent LIFES modules operate in each fully discrete section, achieving unprecedented detail and musicality.
- The output section utilizes three-stage Darlington bipolar transistors in quadruple-paralleled push-pull configuration, delivering 120W+120W (8Ω) and 220W+220W (4Ω).
- The result? Spectacular sound quality with abundant energy.
2.2. LECUA-EX: Electronically Controlled Attenuator
- LECUA-EX suppresses sound quality deterioration and provides precise volume control.
- Neatly arranged high-quality, fixed-value resistors ensure smooth attenuation.
- The volume knob, resembling a potentiometer, is actually an encoder for this advanced attenuator system.
Conclusion
Both the L-505uXII and L-509Z exemplify LUXMAN’s commitment to audio excellence. Whether you seek refinement or unprecedented performance, these integrated amplifiers deliver. So, turn up the volume, close your eyes, and let the music transport you to another dimension!
