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Descrizione

The L-550AX is a solid-state integrated amplifier to incorporate a truly lossless volume control and superior audio circuitry. With an illuminated central oriented VU meter in its solid, symmetrical front fascia, the L-550AX incorporates the LECUA 1000 high precision electronically controlled attenuator, the latest ODNF 3.0A audio circuit and custom passive components as used in Luxman’s flagship C-1000f control amplifier and B-1000f mono power amplifier.

The LECUA 1000 attenuator is configured to electrically block electromagnetic (EMI) and radio frequency (RFI) interferences. The output signal is attenuated without introducing artifacts inherent of conventional volume controls, thereby resulting in constant output impedance, high signal-to-noise ratio, a uniform frequency response and lowered distortion. As its name implies the ODNF (Only Distortion Negative Feedback) only applies negative feedback where distortion is present to reduce colouration more effectively.

This lossless audio circuit enables the amplifier to retrieve every musical nuance captured by recording engineers. Transient response, attack, dynamic contrast, timbre, inner detail, and bass authority are preserved.

Materiale scaricabile

Catalogo Generale Luxman 2010

Specifiche tecniche

Continuous output: 20W + 20W/8Ω Class A, 40W + 40W/4Ω
Harmonic Distortion: 0.007% or less (8Ω and 1KHz), 0.02% or less (8Ω and 20~20KHz)
Input sensitivity/impedance: PHONO (MM) 2.5mV/47KΩ, PHONO (MC) 0.3mV/100Ω, LINE 180mV/42KΩ, BAL. LINE 180mV/79KΩ, MAIN-IN 550mV/51KΩ
Output voltage: RECORDER 180mV and PRE-OUT: 1V
Signal-to-Noise Ratio: PHONO (MM) Above 91dB, PHONO (MC) Above 75dB, LINE Above 105dB
Frequency Response: PHONO 20Hz~20,000Hz (±0.5dB), LINE 20Hz~100,000Hz (- within 3dB)
Controls: Volume and input selector, power switch, monitor switch, [phono] MC switch, balanced input switch, REC out selector and speaker selector, stereo / mono selector, bass & treble controls and balance control, direct line switch, headphone jack, power on indicator and protection indicator.
Dimensions: 440 x 193 x 463mm
Weight: 28kg