In Barn for Review: Luxman L-505Z Integrated Amplifier

Blink and it will appear. As if by magic.

You can read all about the new Luxman L-505Z Integrated Amplifier in the recent press release but the highlights include 100 Watts per channel of Class AB output power into 8 Ohms and 150 Watts into 4 from the Luxman Integrated Feedback Engine System (LIFES1.0) equipped power amp stage.

The L-505Z houses a number of upgrades from the L-505uXII it replaced including an improved moving magnet/moving coil phono preamp, LECUA (Luxman Electronically Controlled Ultimate Attenuator) equipped volume and balance controls, 12-volt triggers, parallel headphone output jacks including a “Pentaconn” balanced type, and 7-segment LED volume level-VU meter display. Who doesn’t like meters?

From Luxman:

The LECUA system is built around a custom solid-state IC precision attenuator. It delivers meticulous volume adjustment across 88 discrete steps while minimizing distortion. The traditional rotary volume knob interface achieves a satisfying, weighty tactile response.

You’re looking at a MM/MC Phono input, 4 line level single-ended RCA inputs, 1 , PRE Out, Main In, a balanced XLR input, Trigger and Control connections, two sets of speaker binding posts for connecting two pair of speakers, and an IEC inlet for your power cable of choice.

really—who doesn’t like meters

In case you’re wondering, that “Separate” button “Feeds external signals from the MAIN IN terminal on the rear panel to the main-amplifier section” when bypassing the L505Z’s preamp. The Line Straight button bypasses the balance and tone controls when engaged for circuit purists.

I can’t wait to feel that satisfying, weighty tactile response from the volume control and make those meters dance! Stay tuned!


Luxman L-505Z Integrated Amplifier
Price:$5995
Company Website: Luxman America

L-505Z Specifications

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.

* Slide the phase selector switch to the INVERT position to make the balanced input terminals pin No 2 to change to HOT, and No. 3 to COLD.
* Meter lighting, monaural, subsonic, and loudness can be switched with the remote control.
* Specifications and appearance are subject to change without notice.
* The products listed in this catalog do not include line cables. Please purchase cables separately.