L-550AXII - Hi-Fi System LUXMAN - Free user manual and instructions
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| Product Type | Integrated Stereo Amplifier |
| Brand | Luxman |
| Model | L-550AXII |
| Amplifier Class | Class A |
| Power Output (8 ohms) | 30W per channel |
| Power Output (4 ohms) | 60W per channel |
| Frequency Response | 20 Hz to 20 kHz ±0.1 dB |
| Total Harmonic Distortion | 0.005% or less |
| Input Impedance | 47 kΩ |
| Dimensions (W x H x D) | 440 x 185 x 460 mm |
| Weight | 24.5 kg |
| Power Consumption | 330W (idle), 450W (max) |
| Inputs | 3x RCA, 1x XLR, 1x Phono (MM/MC) |
| Outputs | Speaker terminals (A/B), Pre-out, Rec-out |
| Speaker Impedance | 4 to 16 ohms |
| Signal-to-Noise Ratio | 120 dB (IHF-A) |
| Gain | 29 dB (preamp), 28 dB (power amp) |
| Remote Control | Yes (included) |
| Maintenance | Wipe with dry cloth; avoid solvents |
| Safety | Disconnect power before cleaning; use grounded outlet |
| Spare Parts Availability | Contact Luxman authorized dealer for parts |
| General Information | High-end integrated amplifier with ODNF feedback circuit |
Frequently Asked Questions - L-550AXII LUXMAN
Can I bi-wire my speakers with the L-550AXII?
Yes, the L-550AXII has two sets of speaker terminals (A and B) that can be used for bi-wiring. Connect the high-frequency terminals to one set and the low-frequency to the other, ensuring the jumper links are removed.
What speaker impedance is recommended?
The L-550AXII is stable with speaker loads from 4 to 16 ohms. For optimal performance, use 8 ohm speakers.
How do I clean the amplifier?
Use a soft, dry cloth to wipe the chassis. Do not use chemical cleaners or abrasive materials. Keep ventilation slots free of dust.
Does the L-550AXII have a headphone output?
No, the L-550AXII does not have a dedicated headphone output. You can use an external headphone amplifier connected to the pre-out.
What is the power consumption in standby?
The standby power consumption is approximately 0.5W when the power switch is left on but the unit is in standby mode (LED indicator dim).
Can I use the L-550AXII with a subwoofer?
Yes, you can connect a powered subwoofer using the pre-out RCA jacks. The subwoofer will receive the full-range signal, so adjust its crossover accordingly.
What is the difference between Class A and Class AB operation?
The L-550AXII operates in pure Class A, meaning the output devices are always conducting current, resulting in low distortion and a warm sound. Class AB is more efficient but has higher crossover distortion.
How do I set the gain for the phono input?
The phono input has a switch on the rear panel to select MM (high gain) or MC (low gain). Use MM for moving magnet cartridges and MC for moving coil cartridges.
Is the remote control programmable?
The included remote control is dedicated and non-programmable. It controls volume, input selection, and mute. It operates via infrared and requires two AAA batteries.
What should I do if the amplifier overheats?
Ensure adequate ventilation around the unit. Keep at least 10 cm clearance on all sides. If it shuts down due to thermal protection, allow it to cool before restarting. Reduce volume if persistently hot.
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