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About genek

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  1. genek


    You definitely need to open this up. These cabinets typically used an external crossover that looked like this: https://www.usaudiomart.com/details/649311292-stromberg-carlson-vintage-3-speaker-system-with-crossover/images/1369093/
  2. The specs for the AR-18 show a crossover frequency of 2kHz for all models.
  3. genek

    Original AR 3a's???

    WRT to the original question, those are not original AR-3a tweeters.
  4. Interesting. The ones I saw had a decidedly "not real" look and feel to them. I wonder what the finish was.
  5. Tom, was that actual wood veneer or laminate? The rosewood 303a's I remember seeing way back when were laminate.
  6. genek

    New AR drivers.

    I expect the goo used to seal them contributes as much to holding as the screws.
  7. genek

    New AR drivers.

    Frank, which HiVi tweeter did you buy? The Q1R does not need a ring, but the screw holes need a bit of elongation.
  8. genek


    What look are you aiming for? Like new, or the way they'd look if they'd been well cared for the past 50 years or so?
  9. genek

    Are these AR speakers?

    There appears to be a badge on it, or is it just part of one? Can you take a closeup?
  10. genek

    TSW series one-offs?

    I'm guessing that what you have is a pair of Advents from the same era as the AR TSWs. They had several models with similar looking woofer configurations.
  11. Allison oak as always looked "a little...off" to me, so I'm not objective on whether or not you're insane. But I wouldn't paint them flat black. I'd strip and sand them, then dye them black and apply a satin topcoat over that.
  12. genek

    A pair of AR-3 fell into my lap this week

    Another option you might consider is padding lacquer,, which as the same suggests is applied with pads in much the same way shellac is used for French polish. I've used a Behlen product called Qualasole, which works well, though not on anything as large as an AR-3:
  13. genek

    A pair of AR-3 fell into my lap this week

    I've not had good experiences with rattle can lacquer. The spray droplets are too large to lay down really thin coats, which is what you need to build up a mirror gloss finish. Though I suppose if you're determined you could rub it out the same as brush on lacquer.
  14. genek

    A pair of AR-3 fell into my lap this week

    Mahogany only came lacquered. Applying lacquer yourself without the right equipment (spray guns and a booth) and getting a good finish is both difficult and annoying, not to mention potentially dangerous. I was suggesting ironing simply as a means to reduce the amount of sanding you'll need to level out the surface. There's no chance you'd be able to only iron. Depending on how the sanding goes, it might be best to apply a sanding sealer before you do the finish coats.
  15. genek

    A pair of AR-3 fell into my lap this week

    You'll probably end up sanding and putting on a new finish, but if you do the steam iron trick first, it may reduce the amount of sanding needed to level the scratches. You can "restore" the patina of aged mahogany by "aging" the sanded wood with a potassium dichromate solution prior to refinishing. https://www.sawdustzone.org/articles/tutorials-how-to/824947-potassium-dichromate-chemically-coloring-wood