The attraction of the L-505uXII is its new level of refinement, approaching perfection as an authentically desirable product
The L-505uXII is the eagerly awaited Mark II version of the popular L-505uX that has been at the forefront of pre-amplifier design since it’s launch in 2011. Incorporating an abundance of proprietary technologies, such as Luxman’s Version 4.0 ODNF (Only Distortion Negative Feedback), as well as LECUA (Luxman Electronically Controlled Ultimate Attenuator), this product is a truly multifunctional integrated amplifier. As Luxman’s latest high-end model, the L-505uXII continues the evolution of the L-505 series, which has attracted many fans of audio quality and earned a great reputation. As an amplifier which exudes sophistication and authenticity beyond its class, the L-505uXII represents the latest in a long line of exemplary models.
An integral part of the design of the L-505uXII is LUXMAN’s original ODNF amplification feedback circuit featuring a high-speed primary slew rate, an ultra-wide bandwidth and a low level of distortion that is achieved by feeding back only the distorted components of the audio from the amplifier’s output circuit. The L-505uXII is equipped with the latest Version 4.0 ODNF circuit, resulting in a dramatically enhanced accuracy in distortion detection due to the paralleled first stage and Darlington equipped second stage amplification circuit, as well as a paralleled first stage error detection circuit. With it’s lower impedance and higher S/N ratio, the L-505uXII realizes accurate reproduction of even the gentlest audio signals and achieves a full range of dynamic musical expression. The output stage, with it’s parallel push-pull structure, has secured sufficient power at 100W+100W(8Ω) and 150W+150W(4Ω).
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 | REC OUT: 180mV, PRE-OUT: 1V |
| Frequency response | PHONO: 20Hz to 20kHz (within -3dB) 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): 91dB or more PHONO (MC): 75dB or more LINE: 104dB or more |
| Volume adjustment | LECUA |
| Amplification circuit | ODNF 4.0 |
| Output configuration | Bipolar parallel push-pull |
|---|---|
| Damping factor | 210 |
| Max. amount of tone control | BASS: ±8dB at 100Hz TREBLE: ±8dB at 10kHz |
| Power supply | 230V~(50Hz) / 115V~(60Hz) |
| Power consumption | 270W 85W (under no signal), 0.4W (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. |
Product Number: L-505uXII
