WJA Electron Audio

WJA Electron Audio

System

Front end:

  • Scheu 80mm platter and associated ceramic bearing in my own 80mm sand filled chassis, sitting on a sand box with granite slab inlay- about 50kgs .
  • Scheu motor in Bix motor housing with my own battery power supply  and charger.
  • Boston audio Mat2
  • Kuzma Stogi tonearm wired to XLRs
  • Shelter 7000 cartridge

Pre-Amp:
WJA Electron pre-amp  (me)

  • Sowter MC input transformer
  • 2 stage 6C45PI valve with passive RIAA
  • Silver mica Riaa caps, Mundorf coupling caps
  • Kiwame resistiors excpet RIAA which are 0.5% metal films
  • Transformer Volume Control, 23 steps, which makes a nice balanced line stage too if you don’t need a lot of gain there.
  • Shunt regulation followed by CCS valve anode loads (overkill perhaps, but it’s damn quiet)

Power amp:

  • WJA Electron 6C45PI / 2A3-40 SET amp (about 6-7 watts a channel)
    • see power amp page…
  • Hypex class D bass amps with miniDSP equalization operating from  16 Hz to 60Hz

Speakers:

  • DIY Open baffles with 2 x 300mm sub woofers powered by miniDSP and Hypex amps

Digital:

  • I made a silent PC running on Ubuntu and bought 1 of those cheap 196Khz 24bit DAcs to play with.. Promising.. work in progres

Scheu based turntable with Kuzma arm and Shelter 7000 cartridge.

TVC is a wiring nightmare, but worth the effort

Music

About 1300 lps.  Approximately 1000 Rock – modern stuff, 150 classical, 120 Jazz and Blues and 60 or so World music.  Although that doesn’t really adequately describe the genres…  I have to catogorize them somehow otherwise it’s hard to find them!

TVC is a wiring nightmare, but worth the effort

Scheu based turntable with Kuzma arm and Shelter 7000 cartridge.

System

Front end:

  • Scheu 80mm platter and associated ceramic bearing in my own 80mm sand filled chassis, sitting on a sand box with granite slab inlay- about 50kgs
  • Scheu motor in Bix motor housing with my own battery power supply  and charger.
  • Boston audio Mat2
  • Kuzma Stogi tonearm wired to XLRs
  • Shelter 7000 cartridge

Pre-Amp:
WJA Electron pre-amp  (me)

  • Sowter MC input transformer
  • 2 stage 6C45PI valve with passive RIAA
  • Silver mica Riaa caps, Mundorf coupling caps
  • Kiwame resistiors excpet RIAA which are 0.5% metal films
  • Transformer Volume Control, 23 steps, which makes a nice balanced line stage too if you don’t need a lot of gain there.
  • Shunt regulation followed by CCS valve anode loads (overkill perhaps, but it’s damn quiet)

Power amp:

  • WJA Electron 6C45PI / 2A3-40 SET amp (about 6-7 watts a channel)
    • see power amp page…
  • Hypex class D bass amps with miniDSP equalization operating from  16 Hz to 60Hz

Speakers:

  • DIY Open baffles with 2 x 300mm sub woofers powered by miniDSP and Hypex amps

Digital:

  • I made a silent PC running on Ubuntu and bought 1 of those cheap 196Khz 24bit DAcs to play with.. Promising.. work in progress

Music

About 1300 lps.  Approximately 1000 Rock – modern stuff, 150 classical, 120 Jazz and Blues and 60 or so World music.  Although that doesn’t really adequately describe the genres…  I have to catogorize them somehow otherwise it’s hard to find them!

Important links

Contact

WJA Electron S.A.R.L.
216 Route du Mas de Soulié
46230 Cremps, France
International VAT Number: FR08503863136

© 2024 Created with InfinITiServe 

Contact

WJA Electron S.A.R.L.
216 Route du Mas de Soulié
46230 Cremps, France
International VAT Number: FR08503863136

© 2024 Created with InfinITiServe 

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