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c40

  1. cykotic

    FREE JBL C40 HARNESS LOWBOY REAR LOADED FOLDED HORN BLUEPRINTS

    THIS IS A DIGITAL COPY OF A SET OF ORIGINAL AND VERY RARE 1958 BLUEPRINTS/PLANS FOR THE FAMOUS JBL C40 HARKNESS LOWBOY REAR-LOADED FOLDED HORN. 4 PAGES OF BLUEPRINTS INCLUDED MEASURING 24” X 36” EACH. THESE DIGITAL COPIES ARE FROM THE ORIGINAL 1958 PLANS AND SINCE THEY ARE DIGITAL COPIES, NO...
  2. cykotic

    JBL C40 Harkness N1200 Crossover Recapping

    Greetings: I have an early model JBL C40 Harkess with the D130A, 175DLH, and N1200 Crossover. I would like to change the capacitors in the N1200 as they have to be about 60 years old now (or older). I opened up the N1200 and am faced with this wax/resin substance securing the caps to the inside...
    • cykotic
    • Thread
    • c40 capacitor caps crossover harkness jbl n1200 recap resin
    • Replies: 14
    • Forum: The Lansing Legacy
  3. Johnny_Law

    D130 Generational Differences? Or identical?

    Hate to cross-post with AudioHeritage - but seems like more folks are active here. I've got two D130s that are destined for use in my 030-loaded C40 cabinets. They both measure around ~6.5ohms DCR and appear pretty much identical other than the binding posts and labels. I wanted to check in...
  4. Johnny_Law

    Trying to Restore Blonde C40 Harkness Cabinets

    I have two blonde JBL C40 cabinets, but one needs new veneer on one (or more) side. Can anyone point me in the right direction in terms of what veneer to use? (And also, where to find matching grille cloth?) (This is the good cab for reference)
  5. nickdinatale

    JBL C40 clone find

    The other day I was looking at New England classified listings and came across a photo of the back of a JBL crossover with hand build cabinets that were quite far away in Vermont. I messaged the seller for more info, but they didn't really know much aside from the model of the crossover (N2400)...
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