Successor of the "blind test winner" 2007. Custom made only, approx. 3-4 weeks. Budget start from IDR 12.5 million, please call. 

• Product name: LJ EL34 Single-ended Stereo Integrated Amplifier.
• Model: EL34SE-6SN7 #4, published in April 2009, gone commercial since May 2007.
• Power output per channel: 6 watt RMS (triode mode), 8-11 watt RMS (ultra-linear mode).
• Design approach:
  
  • Circuit designer and composer by Alex.
  • 6SN7 tube as input-stage.
  • EL34 tube as output stage, triode connected switchable to ultralinear, auto-biased.
  • 5AR4 tube as HV recitifier, C-L-C filter.
  • Pure A-class single-ended (all-stage, in through out).
  • Zero global feedback.
  • Filament supply: AC.
  • Using premium parts and precise construction.
• Features:
  
  • Dual output impedance: 4 and 8 ohm.
  • Dual operation mode: triode (6W) switchable to ultra-linear (8-11W).
• Key parts (subject to upgrade/downgrade, please call):
  
  • Input tube: 2x 6SN7 fam.
  • Power tube: 2x EL34 fam.
  • Diode rectifier tube: 5AR4 fam.
  • Resistor: Allen-Bradley (USA), Vishay Dale (USA), Riken (Japan).
  • Capacitors: WestCap USA or Sprague Vitamin-Q USA or OTK Russian military paper in-oil (PIO) , or Auricap USA (MKP), or Mundorf Supreme Silver/Oil (Germany).
  • Electrolytic capacitors (and/or): Matsushita-Panasonic (Japan), Nippon Chemi-con (Japan), RS (Singapore), Elna (Japan), JB (ROC), JJ (Slovak Republic).
  • Volume potentiometer: ALPS (Japan).
  • RCA chassis connector: CMC style-1.
  • Trafo and choke: custom made by LJ Audio. See here.
• Chassis by LJ Audio:
  
  • Wood chassis, black piano.
  • Nickel chrome top plate.
  • Antique knob.
• Internal construction: point to point wiring, real star-ground, chassis/earth float to ground line.