Luxman L-505Z

Beskrivning

Heartfelt sound New criteria that redefines the standard

Designed in honor 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”.

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.

*LECUA stands for “Luxman Electronically Controlled Ultimate Attenuator”.

Specifikationer:

* 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.

Läs mer på: www.luxman.com