Product Details

Product: Luxman L-503s Integrated Amplifier
Color: Aluminum Gold

Product Description

The Luxman L-503s is a high-end integrated amplifier produced between 1997 and 2000. With a continuous output power of 65 watts per channel at 8 ohms, this amplifier delivers precise and musical sound reproduction. The L-503s features Luxman’s unique OD β-circuit, an advanced NFB technology that preserves phase information across all frequency bands, ensuring a uniform tonal balance. The amplifier section employs a 3-stage Darlington configuration and complementary service circuits with low internal impedance and high-fT output transistors. The power supply is equipped with a large, high-efficiency EI-core transformer and a high-capacity capacitor for stable power delivery.

Cosmetic Description

The amplifier features an aluminum front panel with a gold finish and a gray housing. Any signs of use are carefully documented and photographed to provide a clear view of its condition.

Functional Notes

The Luxman L-503s is fully functional and delivers outstanding sound quality. All functions, including volume control, inputs, and tone adjustments, work properly. The amplifier comes with the original remote control for easy operation.

Specifications

• Type: Integrated amplifier
• Continuous output power: 65W + 65W at 8Ω
• Total harmonic distortion: 0.003% or less (1 kHz/8Ω, Line Straight on); 0.02% or less (20 Hz – 20 kHz/8Ω, Line Straight on)
• Input sensitivity/impedance:
  • Phono (MM): 2.5 mV/47 kΩ
  • Line: 150 mV/47 kΩ
  • Balanced: 300 mV/66 kΩ
• Signal-to-noise ratio (IHF-A, Line Straight on):
  • Phono (MM): 90 dB or more (at 5 mV input)
  • Line: 107 dB or more (input shorted)
• Frequency response (Line Straight on):
  • Phono: 20 Hz – 20 kHz +0, -0.5 dB
  • Line: 20 Hz – 100 kHz -2 dB or less
• Dimensions (W x H x D): 467 x 179 x 440 mm
• Weight: 14 kg

Included

• Luxman L-503s Integrated Amplifier
• Original remote control