• Luxman L-505Z
  • Luxman L-505Z
  • Luxman L-505Z
  • Luxman L-505Z
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Luxman

Luxman L-505Z

$6,995.00 USD
$6,995.00 USD
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Luxman L-505Z is a Class AB integrated amplifier rated 100W+100W into 8Ω and 150W+150W into 4Ω, using the LIFES 1.0 feedback engine, LECUA electronic volume control, and a bipolar parallel push-pull output stage. The L-505z has an MM/MC phono EQ, line and balanced inputs, pre out/main in, and analog meters. The power supply employs a 540VA EI transformer with 4×10,000 µF capacitors; damping factor is 200. The Luxman L-505Z combines high current delivery and low noise floor to offer a musical presentation.

Specifications
  • Output power: 100W + 100W (8Ω), 150W + 150W (4Ω)
  • Amplification system: LIFES 1.0 feedback engine, bipolar parallel push-pull
  • Input sensitivity/impedance (LINE): 180 mV / 47 kΩ
  • Input sensitivity/impedance (BAL LINE): 180 mV / 60 kΩ
  • Input sensitivity/impedance (PHONO MM): 2.5 mV / 47 kΩ
  • Input sensitivity/impedance (PHONO MC): 0.3 mV / 100 Ω
  • Frequency response (LINE): 20 Hz – 100 kHz (+0, –3.0 dB)
  • Total harmonic distortion: 0.005% (1 kHz, 8Ω)
  • Damping factor: 200
  • Power transformer: 540 VA EI-core
  • Power supply capacitors: 10,000 µF × 4
  • Inputs: 4× line, 1× balanced, 1× phono (MM/MC)
  • Outputs: pre out / main in, 2× speaker terminals (A/B)
  • Headphone outputs: 6.3 mm and 4.4 mm balanced
  • Dimensions (W×H×D): 440 × 178 × 454 mm
  • Weight: 24.3 kg
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Luxman L-505Z
Luxman L-505Z
Luxman L-505Z
Luxman L-505Z

Luxman L-505Z Integrated Amplifier

Luxman L-505Z is a no-nonsense integrated amplifier that carries the Z-series design philosophy into a compact, easy-to-place chassis. It follows Luxman’s separates-in-one-box approach with short signal paths, quiet backgrounds, and the familiar front-panel ergonomics with large analog meters and direct access to tone, balance, loudness, and line straight.

Design and Engineering

LIFES 1.0 amplification

The Integrated Feedback Engine System focuses feedback where it is most effective, aiming for wide bandwidth with low phase error. Circuit placement and device selection are optimized to preserve low-level detail at any listening level.

LECUA electronic attenuator

Volume control uses Luxman’s resistor-ladder attenuator rather than a traditional carbon track. This keeps channel balance consistent at low levels, reduces wear, and provides precise, repeatable steps with integrated balance trim.

Output stage and power supply

A parallel push-pull bipolar output section provides stable current delivery into real loudspeakers. A high-current EI transformer and generous filtering supply clean, steady power. Symmetrical layout and disciplined grounding help suppress hum and maintain a calm noise floor.

Chassis and mechanical control

Thick aluminum panels, internal bracing, and careful mounting of the transformer and volume block reduce vibration. AC routing and relay placement are arranged to keep switching noise away from small-signal paths.

Connectivity and Control

Line and balanced inputs

Multiple line inputs plus a balanced XLR input cover modern digital front ends and analog sources. Line straight bypasses tone and balance networks when maximum purity is desired.

Pre out and main in

Pre out allows integration of subwoofers or an external power amplifier. Main in lets the L-505Z operate as a stand-alone power amp when paired with an external preamp or home theater processor.

Speaker management

Dual speaker terminals support A, B, or A+B selection. Binding posts accept spades, bananas, and bare wire. Protection circuits engage quietly to avoid turn-on and turn-off pops.

Phono Stage

A built-in phono equalizer supports moving-magnet and moving-coil cartridges. Front-panel selection keeps cable runs short. The layout minimizes noise pickup so vinyl playback is clean without requiring an external stage.

Headphone Stage

Front-panel jacks include 6.3 mm and 4.4 mm connections. Low output impedance and independent grounding provide good control across a wide range of headphones. Speaker outputs mute automatically when headphones are connected.

Everyday Usability

Startup is quick, meters are legible from across the room, and the aluminum remote handles input and volume. Knobs have firm detents, making small changes easy to repeat. The feature set encourages daily use without menu diving.

System Matching

L-505Z partners well with stand-mounts and many floorstanders of typical sensitivity. It favors sources that are neutral to slightly warm. The internal phono stage accommodates a broad range of MM and MC cartridges, simplifying turntable matching. For large rooms or very demanding speakers, pre out makes adding external power straightforward.

Placement and Setup Tips

  • Allow several inches of ventilation above and to the sides.
  • Use line straight for the most transparent path when tone shaping is not needed.
  • If adding a subwoofer, take pre out to the sub’s line input and set crossover and phase by ear or measurement.
  • Keep analog cables away from power cords and routers to reduce background noise.

What Distinguishes It in the Lineup

Compared with higher Z-series models, L-505Z keeps the core Luxman control philosophy while focusing on a simpler output stage and power supply. You still get LIFES amplification, LECUA volume architecture, a full phono section, and robust speaker management in a chassis that fits standard racks.

Who It Is For

Listeners seeking a single chassis to anchor a serious two-channel system. Owners who want built-in phono, flexible pre out and main in, confident speaker control, and predictable day-to-day operation.

In the Box

Remote control, power cable, owner’s manual, warranty card.

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