About the Luxman L-505Z Integrated Amplifier

Product Description

Designed in honour of our L-505 amplifier, which continues to fascinate many audio enthusiasts as possibly our most familiar hi-fi model and equipped with our newly developed “LIFES” amplifier feedback engine, which is at the core of LUXMAN’s contemporary designs, we would like to complete the Z series circle with the L-505Z. While inheriting all the high-quality sound and design know-how from our higher-end models, it has achieved even more as a multifunctional integrated amplifier. Redefining the standard and now entering a new era, the L-505Z invites you into the world of exciting high-end audio.

Our latest amplification feedback engine brings music
to life with LIFES Version 1.0

The L-505Z, like the L-509Z and L-507Z, is equipped with our “LIFES” high quality amplification feedback engine, a feature integral to our next generation of amplifier designs. LIFES is based on the technical concept of our revolutionary ODNF feedback circuitry, which achieved excellent static characteristics without feeding back any of the musical input signal to the main amplifier, yielding a natural sound quality more akin to a non-feedback system. The circuit has been redesigned from scratch through multiple simulations. By combining carefully selected components and through repeated listening tests, we have achieved the ultimate performance and sound quality, truly worthy of being adopted for LUXMAN’s next-generation components. In LIFES Version 1.0, the entire circuit has been reconstructed and simplified, improving performance, whilst also successfully reducing the number of parallel elements, reducing distortion during amplification to less than half. The output stage uses a parallel push-pull configuration with bipolar transistor elements, achieving ample Class AB power of 100W+100W (8Ω) and 150W+150W (4Ω).

*LIFES stands for “Luxman Integrated Feedback Engine System”.
*ODNF stands for “Only Distortion Negative Feedback”.

Discrete buffer circuitry for preamp

The concept of a “power amp driver” is fundamental to the design of a preamp section, outputting an energy-rich signal is its ideal state of operation. The L-505Z is equipped with discrete buffer circuitry and high current supply capability at the output of the preamplifier stage, maintaining the fidelity of delicate musical signals whilst significantly enhancing the driving energy and performance of the power amplifier stage. The input selector switch controls a switching IC with excellent separation and low crosstalk. Proudly joining our latest Generation Z series, the L-505Z has achieved a dramatic development in musicality that far surpasses its class. In addition, responding to the reestablishment of vinyl record playback as an important contemporary source, a high-quality MM/MC compatible phono EQ amp circuit with a parallelized first stage is provided to realize supreme analog playback similar to our other high-end components.

Electronically controlled attenuator LECUA

The volume control section is crucial to both the functionality and performance of an integrated amplifier and requires dedicated signal processing. The L-505Z is equipped with LUXMAN’s original, high-clarity LECUA* electronically controlled attenuator, which has been significantly downsized by adopting a solid-state (IC) circuit configuration. LECUA is an ideal level control system that minimizes variations in audio quality and enables smooth and detailed volume adjustment over 88 steps. The LR balance adjustment control also relies on LECUA's volume shift function. Despite multitasking, LECUA succeeds in minimizing deterioration of sound quality across the full range of the volume control. Intuitive operability is maintained while linked with operations from the remote control. A traditional rotary volume knob achieves that weighty, tactile response and operational feel enthusiasts will enjoy, combining convenience with pleasing operability.

Various functions and in/output terminals

The L-505Z has our proprietary tone controls, loudness, LR balance adjustment and a separate function, facilitating bi-amp configuration with an additional power amplifier or coexistence with an AV amplifier set-up, all in one unit. On the rear panel, the 18mm pitch RCA input/output terminals offer compatibility with high quality cables with large plugs, and the robust speaker terminals with an in-line layout (same LR characteristics) are compatible with Y-lugs and banana plugs.

Spec

Rated output 100W + 100W (8Ω),
150W + 150W (4Ω)
Input sensitivity/
input impedance
PHONO (MM): 2.5mV/47kΩ
PHONO (MC): 0.3mV/100Ω
LINE: 180mV/47kΩ
BAL.LINE: 180mV/55kΩ
MAIN IN: 1V/47kΩ
Output voltage PRE OUT: 1V
Frequency response PHONO: 20Hz to 20kHz (±0.5dB)
LINE: 20Hz to 100kHz (within -3dB)
Total harmonic distortion 0.009% or less (8Ω, 1kHz)
0.09% or less (8Ω, 20Hz to 20kHz)
S/N ratio (IHF-A) PHONO (MM): 87dB or more
PHONO (MC): 70dB or more
LINE: 104dB or more
Volume adjustment LECUA
Amplification feedback circuit LIFES 1.0
Output configuration Bipolar parallel push-pull
Damping factor 200
Max. amount of tone control BASS: ±8dB at 100Hz
TREBLE: ±8dB at 10kHz
Power supply 230V~(50Hz) / 115V~(60Hz)
Power consumption 330W
90W (under no signal), 0.5W (at standby)
External dimensions 440(W) x 178(H) x 454(D) mm
front side knob of 20mm and rear side terminal
of 27mm included in depth
Net weight 22.5kg (main unit)
Accessories Remote control (RA-17A)
Power cable
Speaker terminal
Supported Y-lug terminal
dimension
Width of part a: 15mm or less
Width of part b: 8mm or more
* Connection may not be performed depending on the shape of the Y-lug terminal.
Shipping Information

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Returns

Standard Returns 

Our returns policy lasts for 28 days for all items in our store except those defined in section (1) below.

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If you return the item to us within 14 days of purchasing, you will be offered a full refund or exchange. If your return comes to us after 14 days of purchasing and is opened, we will refund the full amount less 20%. Unused items returned up to 28 days after purchasing will be fully refunded.

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(1) Examples of non-returnable items: 

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There are certain situations where only partial refunds are granted (if applicable). Those are where:

  • Any item not in its original condition, is damaged or missing parts for reasons not due to our error 
  • Where the item wasn't marked with an extended returns policy at the end of the checkout process

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Shipping 
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FAQs

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Can I return a product?

Yes! So long as it's new/unused and in the same condition it was delivered to you, we will gladly refund you up to 14 days from purchase. Please raise a request via your Account area to start the return process.

Do you offer installation?

Absolutely - we have a dedicated, in-house team of installers who travel the UK installing lovely hifi and home cinema solutions. Contact us to discuss pricing.

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