Luxman L-505uX Integrated Amplifier - 100 Watts W/ Remote

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General:
The L-505uX is a classic integrated amplifier from the renowned Japanese manufacturer Luxman. From the moment you interact with it, the build quality stands out. The fit and finish are excellent throughout, and the signature softly illuminated blue power meters add a distinctive touch to the front panel.

Rated at 100 watts per channel into 8 ohms and 150 watts per channel into 4 ohms, the L-505uX has more than enough power to drive the vast majority of speakers with ease.

Connectivity is another strong point. Features such as a tape loop—something increasingly rare on modern integrated amplifiers—and a balanced XLR input make the L-505uX a flexible choice for both vintage and contemporary systems. The balanced input is particularly useful for pairing with high-quality source components, such as the Luxman D-06u SACD/CD player we just listed.

The built in phono stage is also capable offering a switchable MM and MC phono input which is rare for an integrated amp. This would make an excellent choice when creating a simple setup.

During our testing, the amplifier consistently impressed with its detailed, dynamic presentation. It delivered excellent control and clarity across a wide range of music and speakers we paired it with.

Included with the amplifier are the original remote control, owner's manual, and factory box.

SkyFi Cosmetic Notes:
Extremely light signs of wear, nothing noteworthy. Looks almost new.

Brand Background:
The history of the LUXMAN audio brand began in 1925, at the birth of radio broadcasting. LUXMAN has paid particular attention to the world of audio and has gained high reputation as a quality brand of high-end audio products both domestically and internationally.

Ownership:
Single Owner

Connections:
RCA, XLR, IEC Power, Speaker Binding Posts,

General Sound:
Smooth, uncolored, undistorted natural and clean

Cosmetic Condition:
8/10 = Very Good. Excellent front faceplate, one minor flaw on chassis side or top. See our detailed rating description here.

Working Condition:
Working perfectly and tested in our lab and listening room.

Included:
Unit, Box, Manual, Remote, Power cord.

Packing:
Original Manufacturers Packing

Original MSRP:
$5,299.00

Specs:
- Power Output: 100W per channel into 8Ω, 150W per channel into 4Ω
- Amplifier Circuit: Luxman ODNF 3.0 feedback topology
- Output Stage: Bipolar parallel push-pull
- Inputs:
- 4 × Line-level RCA
- 1 × Balanced XLR
- 1 × Phono (MM/MC)
- 1 × Main In
- Outputs:
- 2 × Tape/Record Out
- 1 × Pre Out
- Headphone Output
- Speaker Outputs: A/B speaker terminals
- Frequency Response:
- Line: 20Hz–100kHz (-3dB)
- Phono: 20Hz–20kHz (±0.5dB)
- THD: 0.005% (1kHz, 8Ω)
- Signal-to-Noise Ratio:
- Line: 105dB
- Phono MM: 91dB
- Phono MC: 75dB
- Damping Factor: 180
- Tone Controls: Bass and Treble, ±8dB

Dimensions:
17.3" × 7.0" × 17.9"

Weight:
48 lbs.

Approximate Age:
2011

Link to Manual:
Click Here

Recommended Cables:
Kimber Kable - RCA Interconnects - Better

Kimber Kable - RCA Interconnects - Best

Kimber Kable - BALANCED XLR Connectors - Better

Kimber Kable - BALANCED XLR Connectors - Best

Kimber Kable - Speaker Cables - Better

Kimber Summit Series Monocle XL Speaker Cables (PAIR) - Best

Kimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR) - Best If Applicable

Kimber Kable - Power Cords - Better

Kimber Kable - Power Cords - Best

Testing Process:
We start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.

If the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1 KHz test signal at the amplifier's input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping.

At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time.

We finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier's frequency response characteristics.

This battery of tests will usually reveal if the amplifier has any issues that need further attention.

Before the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.

If the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.