Luxman L-509Z | Integrated Amplifier

The pinnacle of Luxman’s integrated amplifier design

The Luxman L-509Z represents a clear step beyond the traditional idea of an integrated amplifier.
As the premium model of Luxman’s Z-Series, it is designed as a “single-chassis separates” solution — bringing reference-level preamplifier and power amplifier technology together in one meticulously engineered enclosure.

At Authentic High End, we consider the L-509Z a true end-point product: an integrated amplifier for listeners who want the musical authority and refinement of separates, without the complexity that usually comes with them.

Positioning Within Luxman

The L-509Z sits at the very top of Luxman’s Integrated Amplifiers range and serves as the technological flagship of the current Z-Series generation.

It is not an evolution in name only. Compared to previous generations, the L-509Z introduces new core technologies that fundamentally raise the performance ceiling of Luxman integrated amplification.

Single-Chassis Separates: The Core Idea

With the L-509Z, Luxman explicitly moves beyond the classic integrated-amp mindset.

The design goal was ambitious:
to achieve the performance of high-grade pre- and power amplifiers inside a single chassis, without the usual compromises in signal integrity, power delivery or control.

This “single-chassis separates” concept defines every aspect of the L-509Z — from circuit topology to mechanical layout and power supply architecture.

LIFES: New-Generation Amplification Feedback Engine

For the first time in Luxman’s integrated amplifiers, both the preamplifier and power amplifier sections of the L-509Z use Luxman’s latest amplification feedback engine: LIFES (Luxman Integrated Feedback Engine System).

LIFES is designed to:

• maintain musical clarity under real-world loads

• suppress distortion without overdamping the sound

• preserve natural dynamics and timing

The result is amplification that feels fast, stable and musically relaxed, even when driving demanding loudspeakers.

LECUA-EX: Precision Volume Control Without Degradation

Volume control is critical in an integrated amplifier — and often underestimated.

The L-509Z introduces LECUA-EX, Luxman’s new advanced attenuator system. Compared to conventional solutions, LECUA-EX:

• minimizes sound quality deterioration at low and moderate levels

• maintains channel balance with extreme precision

• provides a smoother, more confident operational feel

This allows the L-509Z to sound consistent and composed at any listening level, from late-night sessions to realistic concert volumes.

Sound Character & Listening Experience

The Luxman L-509Z sounds authoritative, calm and deeply resolved.

Bass is firm and controlled without heaviness. The midrange is open, textured and emotionally communicative. High frequencies extend freely, without edge or glare.

What defines the L-509Z most clearly is scale with composure:

• complex music remains intelligible

• dynamics unfold naturally

• timing stays locked, even at low volume

It is an amplifier that invites long listening sessions and complete albums — not quick demonstrations.

Power & Loudspeaker Control

While specifications indicate substantial output power, the true strength of the L-509Z lies in current delivery and stability.

Thanks to its advanced power amplifier section and LIFES architecture, it controls a wide variety of loudspeakers with ease, from refined stand-mounts to demanding floorstanders, without sounding mechanical or strained.

Design & Build Quality

The L-509Z reflects Luxman’s modern Z-Series design language:

• brushed aluminium (silver) front panel

• large, softly illuminated VU meters

• solid, precisely machined controls

• rigid, resonance-controlled chassis

It feels contemporary, purposeful and unmistakably Luxman — built to last both mechanically and musically.

System Integration & Practical Flexibility

Despite its purist ambitions, the L-509Z remains practical:

• multiple analogue line-level inputs

• high-quality built-in phono stage (MM/MC)

• pre-out / main-in capability

• headphone output suitable for serious listening

All features are implemented with restraint, ensuring they serve the music rather than complicate the signal path.

Why We Selected the L-509Z at Authentic High End

The L-509Z embodies everything we value in high-end audio:

• technological progress that serves musical enjoyment

• refinement instead of exaggeration

• confidence instead of constant upgrading

In our Brussels listening rooms, it consistently demonstrates that a modern integrated amplifier can be a true reference component.

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