Shinyokohama, Japan | 2024 – Luxman L-505Z: Engaging sound New standards that redefine quality!

Unveiled in tribute to the enduring popularity of the L-505 amplifier, cherished by numerous audio aficionados, the L-505Z marks the integration of Luxman’s cutting-edge “LIFES” amplifier feedback mechanism, a cornerstone of modern Luxman designs. Completing the Z series circle, this amplifier draws on the high-fidelity sound and design expertise of Luxman’s premium models but surpasses them as a versatile integrated amplifier. Redefine your expectations and step into a new dimension of premium audio with the L-505Z.

Introducing the latest LIFES Version 1.0 for enriched musical experiences

The L-505Z, similar to the L-509Z and L-507Z, boasts the “LIFES” top-notch amplification feedback engine, a key feature in Luxman’s new amplifier generation. Built on the pioneering ODNF feedback circuitry concept, LIFES ensures exceptional static properties without reverting any musical input signals to the primary amplifier, delivering a natural sound akin to non-feedback systems. Redesigned from the ground up through extensive simulations, LIFES Version 1.0 elevates performance by simplifying the circuitry and minimizing distortion during amplification by over half. Employing a bipolar transistor setup in the output stage, the parallel push-pull configuration delivers a robust Class AB power of 100W+100W (8Ω) and 150W+150W (4Ω).

*LIFES: Luxman Integrated Feedback Engine System.
*ODNF: Only Distortion Negative Feedback.

Advanced electronically controlled attenuator LECUA

The volume control section plays a vital role in the functionality and performance of an integrated amplifier, necessitating precise signal processing. Enter LUXMAN’s sophisticated LECUA* electronically controlled attenuator, significantly downsized by adopting a solid-state (IC) circuit architecture. LECUA provides an optimum level control system that minimizes audio quality fluctuations, enabling seamless and detailed volume adjustments across 88 levels. LR balance adjustments are also seamlessly managed through LECUA’s volume shift functionality, ensuring minimal sound quality degradation throughout the volume spectrum. Retaining user-friendly operation, LECUA harmonizes with remote control commands, while a classic rotary volume knob offers enthusiasts a tactile, responsive, and gratifying experience, blending convenience with operational charm.

*LECUA: Luxman Electronically Controlled Ultimate Attenuator.

Discreet buffer circuitry for enhanced preamp performance

The notion of a “power amp driver” lies at the heart of preamp design, wherein generating a robust signal is imperative. The L-505Z features discrete buffer circuitry and a high current supply capability at the preamplifier stage output, preserving the fidelity of delicate musical signals while significantly enhancing the driving force and performance of the power amplifier stage. The input selector switch manages a switching IC with exceptional isolation and minimal crosstalk. Proudly representing the latest in the Generation Z series, the L-505Z embodies a remarkable leap in musicality that transcends its class. Moreover, responding to the resurgence of vinyl playback as a contemporary staple, the amplifier includes a high-quality MM/MC-compatible phono EQ amp circuit with a paralleled initial stage, delivering supreme analog audio akin to other high-end Luxman gear.

Highly regulated power supply setup

The amplifier’s power supply serves as its pulsating core, demanding instant current and stable output voltages. The L-505Z features Luxman’s traditional, incredibly stable 540VA large-capacity EI-type power transformer, paired with four custom 10,000μF filter capacitors. This combination delivers the prompt energy needed to faithfully reproduce a broad spectrum of musical dynamics and maintain consistent voltage provision under varied load conditions.

Large needle VU meter and 7-segment LED display

Following in the footsteps of its high-end counterparts, the L-505Z comes with large needle-type VU meters illuminated by white LEDs, smoothly tracking music signal changes. A novel 7-segment LED level display nestled between the left and right meters allows users to monitor volume levels from their listening spot. Through the remote control, you have the flexibility to toggle meter lighting and 7-segment LED display according to your preference.

Distinct headphone terminals with isolated grounding

The L-505Z is equipped with premium headphone playback capabilities, catering to immersive listening environments. Alongside a standard φ6.3mm terminal, the amplifier houses a new φ4.4mm terminal featuring independent left and right ground connections and separate unbalanced amplifiers, notably enhancing channel separation for a richer, three-dimensional listening experience.

Rich functionality with diverse in/output terminals

The L-505Z incorporates proprietary tone controls, loudness, LR balance adjustment, and unique functionality allowing bi-amp setups with additional power amplifiers or seamless integration into AV amplifier configurations—all consolidated into one device. The rear panel boasts 18mm pitch RCA input/output terminals for compatibility with high-quality cables featuring large plugs, while the robust speaker terminals with an in-line format (consistent LR characteristics) support Y-lugs and banana plugs.

LUXMAN’s exclusive technological innovations

The L-505Z prioritizes sound quality in every aspect, from non-angled wiring on circuit boards for seamless current flow to “Bee-Line” component placement ensuring the most efficient path for audio signals. Internal wiring utilizes OFC copper cables for natural signal transfer, incorporating spiral wrap shielding for each uncoated core wire. Additionally, the loop-less chassis structure curbs ground impedance hikes.

Multi-functional remote controller

The substantial and ergonomic aluminum remote control is also compatible with select Luxman CD players released post-1996.

* Setting the phase selector switch to INVERT alters the balanced input terminal pins 2 to HOT and 3 to COLD.
* Meter lighting, monaural, subsonic, and loudness can be toggled via the remote control.
* Spec and appearance are subject to change without notice.
* Line cables are not included with catalog products.