Willsenton R11PRE Pre-amplifer EH6922 tube Phono stage Pre-amp MM/MC Balanced

All items guaranteed 100% BRAND NEW in the original edition Box.

ONE-YEAR WARRANTY !!!


Features:
• Adopts a square power transformer specially developed for this machine.
• The circuit of this machine adopts 4pcs of vacuum tubes.
• With MC/MM switching function of phono input.
• Two 6Z4 vacuum tubes are used for high voltage power supply as tube rectification.
• Treble and bass adjustment function, with a direct selection switch.
• 5 groups of signal input (PHONO, CD, AU×1, AUX2, BALANCE).
• Infrared function remote control.
• Equipped with five-stage feedback amount adjustment, users can freely choose different feedback amounts to achieve diverse sound effects.
• This machine has two groups of RCA outputs and one group of balanced output functions.
• Select Japanese ALPS high-end potentiometers.

The R-11PRE preamplifier is designed with high-fidelity tubes, dedicated to perfectly restoring the authenticity of the sound.
Its core configuration is four EH6922 vacuum tubes imported from Russia, which are carefully selected and paired to ensure that every note can be presented realistically and delicately.
Through the signal amplification of this top-level vacuum tube, you can experience the purity and authenticity of music and feel every subtle change in the sound quality.
Whether it is a melodious melody or a complex harmony, the EH6922 vacuum tube can accurately capture it, delivering a warm and layered tone, as if showing the soul of the music in front of you.
This design not only highlights the ultimate pursuit of sound quality, but also creates an unparalleled listening experience for music lovers, allowing people to indulge in the real and delicate sound quality, as if they were in a live performance and feel every shock to the soul.


Product specification:
Gain: 18dB
Frequency response: 15Hz-35KHz (-3DB)
Harmonic distortion: 0.9% (1KHz, A-weighted)
Signal-to-noise ratio: 93DB A-weighted
Input sensitivity: 360mV
Input impedance RCA: 100KΩ
Input impedance balance: 47KΩ
Output impedance RCA: 5KΩ
Output impedance balance: 1KΩ
Vacuum tube used: 6922EHx4, 6z4x2
Vacuum tube used: 6922EHx4, 6z4x2
Dimensions (W*D*H): 431x 410 x 130 mm
Net weight: 17KG
Gross weight: 22KG
Power supply voltage: 115V ~ 230V+5% (50Hz)
Power consumption: 45w

PHONO specifications
Gain MM: 48dB
Gain MC: 72dB
Harmonic distortion: 0.06%, (1KHz, A-weighted)
RIAA bandwidth: +0.5dB (20Hz- -20KHz)
Input sensitivity MM: 6mV
Input sensitivity MC: 0.5mV
Input impedance MM: 47KΩ (approx.)
Input impedance MC: 1202 (approx.) Signal-to-noise ratio MM: 85dB A-weighted Signal-to-noise ratio MM: 85dB A-weighted
Signal-to-noise ratio MC: 75dB A-weighted