Cart  US $3,999



Prelude 3 is a transformer coupled tube preamplifier. It supports a pair of XLR connectors with balanced output, four RCA line inputs, and one RCA output. It is designed with Toroidal OPT to realize ultra-wideband frequency characteristics and reproduces pure original sound with non-feedback design of triode A class operation. In particular, the signal input and signal output are Galvanic Insulation, which prevents noise from entering the power supply due to the unbalance of the signal ground, and delivers a silent signal without noise to the power amplifier. Prelude 3 features an output transformer that uses an amorphous core with excellent frequency characteristics to support balanced output as well as standard RCA output.

Balanced Differential Amplifier


  • Hand wired Point-to-Point
  • NonFeedback ,Triode Pure Class-A
  • Amorphous Transformer Coupled
  • Balanced output
  • 6N1P-EV Front-End
  • 6SN7 Output Driver
  • 4 Input Selector
  • XLR Balanced Output
  • 4 Unbalanced RCA Input
  • 1 RCA Unbalanced Line Out
  • ALPS Blue Velvet Quad Potentiometer
  • WIMA MKP capacitors
  • 1% Metal Film Resistors
  • Super Cu CMC RCA Jack
  • Swiss Neutrik XLR Combo Connector

Hand wired Point-to-Point


  • Rate output : 10V RMS / @600Ω
  • THD at 300mW /1kHz: 0.1%
  • S/N Ratio: 98 dB
  • Frequency Response: 1Hz to 100kHz (0, -3㏈)
  • Tubes: 6N1P-EV 2ea, Output 6SN7 2ea
  • Input Impedance : 100kΩ
  • Pre-amp Gain: 16 dB ( 6.25x)
  • Unbalance RCA Output Impedance : 150Ω
  • Balanced XLR Output Impedance : 600Ω
  • Hum & Noise : Less than 0.1mV
  • No White Noise
  • Power Consumption : 40Watt ( 117V/230V AC / 50Hz 60Hz)
  • Unpacked Dimension (mm): W260×H185×D310
  • Shipping Weight: 15kg

  Balanced v.s Full Balanced

The balance structure of the Prelude 3 is a method of receiving the unbalanced phase signal, generating the positive phase and the reverse phase signal, and output it with balance through the differential output stage composed of Toroidal Transformer. The Prelude 3 is the same as the Full Balanced structure except for the RCA input method. Full Balance refers to the method designed as balanced input and balanced output.

BTO, Shipment in 2 months by DHL / FedEx
International price $3,999 (USD)

free worldwide shipping include insurance


The Prelude 3 offers manufacturer’s warranty of ONE YEAR from the date of purchase. The warranty is transferable to a second owner with no questions asked.


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