Retired

 

Overview

Prelude 3.1 is a tube based balanced headphone amplifier and pre-amp. Standard 6.5mm jack of Single-Ended separated High/ Low impedance, XLR Combo Jack of balanced output and Independent Pre amp RCA output. The signal input and headphone output are galvanically isolated, therefore your hearing and headphone is safely protected by shutting off the inrush current that occurs at power on-off. Designed with Supermalloy Transformer so that it realized wide frequency characteristics and also play the transparent sound by class -A triode operation in non feedback design.



Point to Point wiring

Feature

  • Hand wired Point-to-Point
  • NonFeedback ,Triode Pure Class-A
  • Supermalloy Transformer Coupled
  • Single ended, or balanced headphone output
  • 6N1P-EV Front-End
  • 6N6P-i Output Driver
  • 4 Input Selector
  • 6.3mm low/high impedance jacks
  • XLR Balanced Output (L/R) jacks
  • 4 x Unbalanced Line Input
  • 1 x RCA Unbalanced Line Out
  • 1 x RCA Unbalanced Rec Out
  • ALPS Blue Velvet 40 step Potentiometer
  • WIMA MKP capacitors
  • 1% Metal Film Resistors
  • Super Cu CMC RCA Jack
  • Swiss Neutrik XLR Combo Connector

Balanced Transformer Coupled


Specifications

  • Rate output : 1W RMS / @300Ω
  • Headphone Jacks : (6.5mm + XLR Combo Jack)
  • Output Impedance : 16Ω - 600Ω
  • Headphone Impedance Low-Z (16Ω - 80Ω)
  • Headphone Impedance High-Z (100Ω - 300Ω - 600Ω)
  • Balanced Output select Low-Z or High-Z
  • THD at 300mW /1kHz: 0.1%
  • S/N Ratio: 98 dB
  • Frequency Response: 1Hz to 80kHz (0, -3㏈)
  • Tubes: 6N1P-EV 2ea, Output 6AS7G 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

  Recommanded Headphones

  • Range of matching Impedance (16Ω - 600Ω)
  • Low (16Ω - 80Ω), High (100Ω-600Ω)
  • Low-z : Audez'e LCD-X, LCD-XC (22Ω)
  • Fostex : TH900 (22Ω)
  • Denon: D5000, D7000 (25Ω)
  • Grado : RS-1 ,GS1000 (32Ω)
  • Ultrasone: Edition- 8, 9 (30Ω), -10 (32Ω)
  • audiotechnica: ATH-W1000(X) ,W5000, W3000ANV (40Ω)
  • AKG: k701, k702 (62Ω)
  • High-z Sennheiser: HD600, HD650, HD800 (300Ω)
  • Beyerdynamic: T1 (600Ω)
    More info.



Shipment in 3-4 weeks by DHL / FedEx

free worldwide shipping include insurance

Warrenty

The Prelude 3.1 offers manufacturer’s warranty of ONE YEAR from the date of purchase. The warranty is transferable to a second owner with no questions asked.

Payment

We accept payments by PayPal.

 

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