LJ EL34 Single-ended Stereo Amplifier, 2x8W

Merek: LJ Audio, Indonesia
Kode Produk: EL34SE-6SN7 1506
Ketersediaan: 1
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Premium version of the "blind test winner 2007".... Using premium parts like Auricap (USA), Allen-Bradley (USA), Radiotron RCA (USA), RSD (German), JJ (Slovak Republic), and rhodium-plated connector. Custom made only, approx. 3-4 weeks. Budget: IDR 12.5 to 16.75 million, please call

  • Product name: LJ EL34 Single-ended Stereo Integrated Amplifier.
  • Model: EL34SE-6SN7 1506, published in June 2015, 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 rectifier, 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) by toggle switch and reliable relay.
  • Key parts (subject to upgrade/downgrade, please call):
    • Input tube: 2x 6SN7 RCA (USA), black plate, smoke glass (collector item).
    • Power tube: 2x EL34 RSD (German, like Telefunken, hard to find item).
    • Diode rectifier tube: 5AR4 Toshiba (Japan).
    • ResistorAllen-Bradley (USA), Vishay Dale (USA), IRC (USA), Riken (Japan), Takman (Japan).
    • Capacitors: Auricap USA (MKP).
    • Electrolytic capacitors: JJ (Slovak Republic), Elna Cerafine-Black (Japan), Matsushita-Panasonic (Japan), Rubycon (Japan), JB (ROC).
    • Volume potentiometer: ALPS (Japan) Blue Velvet.
    • RCA chassis connector: Vermouth rhodium-plated.
    • Loudspeaker connector: Vermouth rhodium-plated binding post.
    • Trafo and choke: custom made by LJ Audio. See here.
  • Chassis by LJ Audio:
    • Solid wood body, melamine gloss.
    • 1.5mm metal chassis.
    • Aluminium top plate, hairline and anodizing.
    • Solid aluminium knobhairline and anodizing.
  • Internal construction: point to point wiring, real star-ground, chassis/earth float to ground line.

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