LUXMAN CL-38UC

The Luxman CL-38uC is a vacuum tube preamplifier that blends a refined classic design with advanced technological solutions, establishing itself as a new benchmark in its category. Based on the SRPP (Shunt Regulated Push-Pull) circuit across all stages, it ensures linear response, reduced distortion, and extended tube life. A key element of this design is the phono equalization circuit, featuring dedicated MC transformers for the MC-low and MC-high inputs, selectable via a dedicated MC impedance lever switch, providing optimal interfacing with any cartridge.

The integration of tone controls allows for precise sound refinement, tailoring frequency balance according to listening preferences. In addition, the CL-38uC is equipped with balanced inputs with dedicated transformers, enhancing compatibility with high-end systems while maintaining impeccable sonic transparency. The external design pays homage to the classic aesthetics of Luxman electronics from the 1970s, particularly the CL-35 model, with an elegant arrangement of knobs and lever switches that harmoniously combine aesthetics and functionality in a product with a strong identity.

The internal construction reflects meticulous attention to detail: wiring has been optimized to minimize interference, while the chassis acts as an omnidirectional metal shield, preventing magnetic flux leakage and reducing noise. The toroidal power transformer and choke transformer are housed in shielded enclosures, ensuring quiet and stable operation. The amplifier employs high-voltage, metalized polypropylene film coupling capacitors by Nichicon, chosen for their natural timbre and ability to preserve the authentic character of the recording.

The vacuum tubes selected for the CL-38uC are sourced from JJ Electronic (Slovakia), a brand renowned for the reliability and longevity of its tubes. Following assembly, each unit undergoes a 48-hour burn-in process, followed by final testing to ensure flawless performance. The outer wooden casing, a distinctive element of the 38 series, has been retained to honor tradition, while the device's width has been expanded to 440 mm to align with Luxman's current standards.

The phono equalization circuit is compatible with both MM and MC cartridges and is equipped with independent step-up transformers for the left and right channels, featuring a two-step gain selection for optimal adjustment. Additionally, the tone controls allow for the selection of three different intervention frequencies for both bass and treble, offering extensive flexibility in sound customization.

Finally, the CL-38uC includes a compact aluminum remote control, allowing smooth volume adjustment from the listening position with maximum precision and no compromise on sound quality.

Technical specifications:

• Input Sensitivity / Input Impedance

  • PHONO (MM): 2.0mV / 47kΩ
  • PHONO (MC high): 0.3mV / 100Ω
  • PHONO (MC low): 0.08mV / 30Ω
  • LINE: 190mV / 50kΩ
  • BAL.LINE: 190mV / 20kΩ ×2

• Frequency Response

  • PHONO: 20Hz - 20kHz (±0.5dB)
  • LINE / BAL.LINE: 10Hz - 70kHz (within -3.0dB)

• Total Harmonic Distortion

  • ≤ 0.006% (1kHz)
  • ≤ 0.06% (20Hz - 20kHz)

• Signal-to-Noise Ratio (IHF-A)

  • PHONO (MM): ≥ 68dB
  • PHONO (MC high): ≥ 63dB
  • PHONO (MC low): ≥ 60dB
  • LINE / BAL.LINE: ≥ 100dB

• Tone Control

  • ±8dB, selectable frequency range
  • BASS: 150 / 300 / 600Hz
  • TREBLE: 1.5k / 3k / 6kHz

• Subsonic Filter: 30Hz (-6dB/oct.)

• Vacuum Tubes: ECC83S ×3, ECC82 ×5

• External Dimensions: 440mm (W) × 169mm (H) × 307mm (D) (Depth includes a 19mm front panel knob and 12mm rear panel terminals)

• Net Weight: 13.3kg

• Accessories: Remote control (RA-19)