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Lecson Quattra Plus

Discussion in 'classic' started by davidsrsb, Nov 5, 2017.

  1. davidsrsb

    davidsrsb pfm Member

    Anybody know about this oddity, four output stages for bi-amping?
     
  2. highcut28

    highcut28 pfm Member

  3. highcut28

    highcut28 pfm Member

    ah David thats prob where u saw it, i m guessing !
     
  4. davidsrsb

    davidsrsb pfm Member

    Yes, never heard of this model before seeing the advert.
     
  5. martin clark

    martin clark pinko bodger

    I've a dim memory of a review listing sometime suggesting the Quattra was four pretty weedy stages - something like c.12-15w ea, and the claimed power output given in that ad was by bridging pairs(!) - with not a lot of heatsinking apparantly.
    I've never seen one in the wild.
     
  6. Arkless Electronics

    Arkless Electronics Trade: Arkless

    Dim memories here of it using op amps to directly drive output transistors and hence max rails of +/- 18V would tie in with that power output...
     
  7. James Evans

    James Evans Bedroom Bodger

    Was Colin Wonfor involved in this? I have a vague memory of that - maybe worth asking a question over on Audiochews?
     
  8. CJ14

    CJ14 Trade: Elsdon Wonfor

    Colin was involved, I took them to court and won, it was run by Russel Kaufman and Paul Bullin they stole my idea based on the Inca Tech Quatra and the Oxford Acoustic Quatra.
    25W/Ch 4 Chanel and the amps could be used in stereo in bridge. They had it built in China in the end so our court could not stop them.
    It was designed for Bi-Amping
    Colin still has circuits and the design is very simple.
     
  9. CJ14

    CJ14 Trade: Elsdon Wonfor

  10. Dark Energy

    Dark Energy pfm Member

    I'm pretty certain it used 4 X LM1875 IC power amplifiers. I'm talking about the Lecson here, it got pretty good reviews, you can get pretty decent performance out of the LM1875, 47 Labs made a few quid out of it, several thousand a pop for the gaincard, which also got pretty good reviews.
     
  11. ff1d1l

    ff1d1l pfm Member

    I had one of these once. Might still be in the attic, have no memory of getting rid.
    Whelming was very much under.
     

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