Luxman L-550AXII Integrated Amplifier
L-550AXII is a Mark 2 model of L-550AX which launched in 2011. L-550AXII makes its debut featuring a high-precision electric controlled attenuator LECUA and the latest version of proprietary high sound quality feedback circuit ODNF4.0, both are used in LUXMAN’s upper range amplifiers.
Keeping the symbolic appearance with traditional pointer-type meters on the front panel, the essence of the expressive power that made a huge step forward whilst developing the flagship integrated amplifier L-590AXII was poured into this model to provide its dense expression particular to pure A class sound and more detailed reproduction of the low range.
Rated output 20W + 20W (8Ω), 40W + 40W (4Ω)
Input, recording input and output line x 4, phono 1 (MM / MC switching), balanced line x 1, recording input and output x1, separate input separate input and output: and output x 1- speaker output A / B 2 system (AB simultaneous can be output)
Amplifier circuit, output configuration ODNF4.0, bipolar parallel push-pull
Input sensitivity / input impedance PHONO (MM): 2.5mV / 47kΩ, PHONO (MC): 0.3mV / 100Ω, LINE: 180mV / 47kΩ
Total harmonic distortion less than 0.007% (1kHz / 8Ω), 0.02% (20Hz ~ 20kHz / 8Ω)
S / N ratio, frequency characteristic LINE: 105dB or more, 20Hz ~ 100kHz (+ 0, -3.0dB)
Power consumption 230W, 170W (when there is no signal), 0.4W (standby)
Dimensions (WxHxD) 440 × 178 × 454 mm (front knob 20, including the rear terminal 27)