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LUXMAN - L-507uXII Integrated Amplifier

Integrated Amp

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Cutting-Edge Technology Marries with Old-School Tradition in the Luxman L-507uXII Integrated Amplifier: ONDF Circuitry, Discrete Buffer, Proprietary LECUA Volume Control Drive Performance

Cutting-edge technology comes together with old-school tradition in the highly desirable Luxman L-507uXII integrated amplifier, a handmade component designed for serious audiophiles and music connoisseurs. Enhanced with Luxman's latest ONDF (Only Distortion Negative Feedback) circuitry, a discrete buffer circuit taken from the flagship C-900u, and proprietary 88-step LECUA volume control, L-507uXII distinguishes itself with smooth, quiet, natural, detailed, and liquid playback of everything from discs to vinyl LPs. Rated at 220Wpc into four ohms, L-507uXII exudes transparency – and comes equipped with both a built-in headphone amplifier and MM/MC phono equalizer, giving you have instant access to private-listening sessions and vinyl. If natural tones, alluring textures, powerful drive, convincing imaging, and preserved nuances are what you seek from music, look no further.

While you'll doubtlessly relish the sound of L-507uXII, you'll also appreciate the future-forward technology invested in the unit that makes such reference-quality performance possible. In addition to the LECUA and advanced buffer circuit, L-507uXII boasts a dual-parallel-configured error-detection unit that practically eliminates distortion. A triple-paralleled second amplifier stage includes a Darlington circuit that trams with the ONDF 4.0 to further the dead-quiet playback characteristics. Luxman's "Bee Line" construction emphasizes short signal paths, a high-quality input selector and switching IC enhances separation, and OFC cabling in the internal wiring fosters naturalism.

Indeed, Luxman considered everything in the name of fine sonics. L-507uXII also boasts non-angled circuit-board wiring design for fast signal transmission, dedicated pre out function, pre/power separation option for integration with bi-amped systems, and a large, low-impedance speaker relay for high drivability. LECUA-operated bass and treble tone controls, line-level and balanced inputs, take-notice headphone amplifier, and remote control round out a Japan-built integrated prepared in every way to rock your world. 100% Music Direct Guaranteed.

Enhanced ODNF Circuit, LECUA Volume Control, Massive Power Supply
Luxman's original ODNF amplification feedback circuit was distinguished by a fast initial slew rate, low distortion, and wide bandwidth – delivering natural, high-fidelity sound. The L-507uXII features the latest ODNF Version 4.0, offering improved high-frequency characteristics and lowered output impedance. A discrete buffer circuit, equivalent to that of Luxman's top-of-the-range C-900u control amplifier, is installed in the output stage of the preamplifier. This discrete design enhances the circuit's ability to effectively drive the power amplifier section while maintaining the purity of delicate musical audio signals. Luxman's Electronically Controlled Attenuator, LECUA, overcomes left/right level deviation and the differing sound quality of each volume point compared to conventional sliding variable resistor volume systems. The highly regulated EI-type power supply features four large-capacity, 10,000μF blocking capacitors that provide powerful speaker drivability, delivering 110Wpc into eight ohms.

  • Loopless chassis structure with independent construction reduces ground impedance generated by chassis current
  • Line inputs and outputs are 18mm RCA terminals to enable connection using high-quality cables fitted with large connectors
  • Left and right speaker terminals configured in-line with identical characteristics for banana plugs and Y-connectors
  • Convenient headphone connection for late-night listening and an AC power inlet for preferred power connection
  • LED-lit level meters and blasted white metallic finish
  • Dedicated aluminum remote control
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Rated output: 110W + 110W (8Ω), 210W + 210W (4Ω)
Input sensitivity/input impedance:
PHONO (MM): 2.5mV/47kΩ
PHONO (MC): 0.3mV/100Ω
LINE: 180mV/47kΩ
BAL.LINE: 180mV/55kΩ
MAIN-IN: 1.05V/47kΩ
Output voltage: REC OUT: 180mV, PRE-OUT: 1V
Frequency response:
PHONO: 20Hz to 20kHz (±0.5dB)
LINE: 20Hz to 100kHz (within -3dB)
Total harmonic distortion:
0.007% or less (8Ω, 1kHz)
0.08% or less (8Ω, 20Hz to 20kHz)
S/N ratio (IHF-A):
PHONO (MM): 91dB or more
PHONO (MC): 75dB or more
LINE: 105dB or more
Volume adjustment: New LECUA1000
Amplification circuit: ODNF 4.0
Output configuration: Bipolar 3-parallel push-pull
Damping factor: 260
Max. amount of tone control:
BASS: ±8dB at 100Hz
TREBLE: ±8dB at 10kHz
Power supply: 230V~(50Hz) / 115V~(60Hz)
Power consumption: 350W; 86W (under no signal), 0.4W (at standby)
External dimensions: 440(W) x 178(H) x 454(D) mm
Net weight: 25.0kg (main unit)
Remote control (RA-17A)
Power cable

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