JD1000A Level-1 mod - ($850 + freight retro-fit to your unit)

  • Our Level-1 mod installs 
  • four large EAR brand sorbothane isolation feet 
  • two sheets of SoundCoat 
  • Russian Electro-Harmonix 12AX7 (2) and 12AT7 (2) 
  • 4 x polypropylene power supply bypass caps 
  • 8 x Multicap PPFXS "signal path" polypropylene film and tin-foil coupling capacitors 
  • 5 x Auricap metallized polypropylene power supply bypass capacitors 
  • 36 x Japanese Riken 0.5 and 1- watt signal path carbon resistors with gold-plated leads 
  • 6' Cardas 1x21.5 awg w/shield c-axial input signal wire 
  • 4 x Hexfred ultra-fast, soft-recovery, high voltage power supply rectifier diodes 
  • 1 x SF4007 Vishay-Telefunken bias supply diode 
  • TRT silver WonderSolder used throughout. 
  • Jolida's 18-month factory warranty extends to our modified amps. Click here for stock specs

Sonic benefits of our Level-1 mod:

  • Greatly improved signal-to-noise ratio. The silences are blacker for enhanced low level detail, ambience retrieval & three-dimensionality. 
  • The amp is smoother, more detailed and more dynamic. It seems to play louder. 
  • Tonal balance is more even from bass through treble, with further gains in the amazingly liquid midrange of the stock machine. 
  • Imaging is crisper and more defined while the bass quality is dramatically improved, gaining weight and authority whlle transcending "one note" bass. to sound more like solid-state in this area