Cart  US $4,899



Prelude 3-SE is a transformer coupled tube preamplifier. It supports a pair of XLR connectors with balanced input and output, two 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-SE features an output transformer that uses an supermalloy core with excellent frequency characteristics to support balanced Input and output as well as standard RCA output.

Fully Balanced Differential Amplifier


  • Hand wired Point-to-Point
  • NonFeedback ,Triode Pure Class-A
  • Toroid Power Transformer
  • Supermalloy Transformer Coupled
  • Single ended, or balanced output
  • True Balanced Topology
  • 6SL7 Front-End
  • 6SN7 Output Driver
  • 3 Input Selector ( 1 XLR, 2 RCA)
  • 1 Balanced XLR Output
  • 1 Balanced XLR Input
  • 2 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


  • Fully Balanced Transformer In-Output
  • Rate output : 10V RMS / @600Ω
  • THD at 300mW /1kHz: 0.1%
  • S/N Ratio: 98 dB
  • Frequency Response: 1Hz to 80kHz (0, -3㏈)
  • Tubes: 6SL7 2ea, Output 6SN7G 2ea
  • Input Impedance : Unbalance : 50kΩ, Balance : 100kΩ
  • Pre-amp Gain: 12 dB ( x 4)
  • Pre-amp Output Impedance : 150Ω
  • Hum & Noise : Less than 0.1mV
  • No White Noise
  • Power Consumption : 60Watt ( 117V/230V AC / 50Hz 60Hz)
  • Unpacked Dimension (mm): W260×H185×D310
  • Shipping Weight: 15kg

  Fully Balanced In Output

The balanced structure of the Prelude 3-SE is based on a transformer and is a fully symmetric amplification method through an input stage and output stage designed with a differential transformer. The term "Fully Balanced" refers to a method designed with balanced inputs and balanced outputs.

Shipment in 2 months by DHL / FedEx
International price $4,899 (USD)

free worldwide shipping include insurance


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


We accept payments by PayPal.


Select Voltage