Luxman SQ-N150
Image source — © Luxman
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Model name
SQ-N150
Type
N/A
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
3 + 1 (Phono)
Input sensitivity (mV)
180
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
47 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
10 (6Ω)
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
20
Frequency response high +/- 3dB (Hz)
80 000
Signal to Noise Ratio (dB)
95
Total Harmonic Distortion + Noise (%)
1
Damping factor
N/A
Dimensions (mm)
297 x 188 x 251
Weight (kg)
12.4
Official link
The Luxman L-595A SE integrated amplifier provides direct selection of the active input via large square keys. The volume, tone, and channel balance controls are rotary. Moreover, the gain level knob is illuminated with a soft LED light. The case is covered from above by a 6 mm thick aluminum plate with ventilation holes for efficient heat dissipation.
The L-505uXll received the latest version of the proprietary negative feedback circuit, ODNF4.0, (the L-505uX had version 2.3), with improved high-frequency performance and reduced output impedance. The output stage of the preamplifier has the same discrete element buffer circuit as the flagship C-900u, which improves the ability to efficiently work with the power amplification section while maintaining the purity of delicate musical signals.
The Luxman L-505Z integrated amplifier, like the older L-509Z and L-507Z models, implements proprietary LIFES technology, which is an integral part of the Luxman next-generation amplifier circuitry. LIFES (Luxman Integrated Feedback Engine System) is based on the ODNF (Only Distortion Negative Feedback) feedback concept, which provides excellent performance without feeding any musical input signals back to the input of the main amplifier.
The Luxman L-550AX II is a modified version (Mark 2) of the L-550AX amplifier, released in 2011. The L-550AX II debuts with a precision electronically controlled LECUA attenuator and the latest version of the proprietary Distortion-Only Negative Feedback circuit, ODNF 4.0, which are used in Luxman's highest-end amplifiers.
The Luxman L-507UX Mark II is equipped with a new LECUA 1000 attenuator and a buffer circuit on discrete elements in the output stage of the preamplifier, and is also equipped with a new version (Version 4.0) of the LUXMAN ODNF feedback circuit (with distortion–only Negative Feedback).