Finally Completed the rebuild of my 10B XO’s

I have finished the rebuild of the 2nd set of Crossovers for my 1988 10B’s.
I used Mundorf M-Caps this time and 12 watt Vishay Mills resistors. I rebuilt these XO’s to the 10A spec’s minus the fuse. The protection circuits on my Yamaha RX-A770 are far better than the fuse, or the bogus Polyfuse. I replaced the Speaker binding posts with modern ones that will work with up to 10AWG wire, I use 12AWG. I constructed Daughter boards to mount the M-Caps on. I still have some work on the cabinets. These speakers have always been hung on the walls of my Man cave in the corner about 4 feet off of the floors. I am installing hammock mounts on the back with carabiners and rock climbing rope. I have never used M-Cap’s EVO’s on other forums I have heard real good things about them.
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Radio Station W7ITC

Comments

  • transmastertransmaster Posts: 426
    edited June 9
    Here is another angle. I used 1/8” Lexan for the daughter board I had a very interesting time cutting them out with a coping saw. The M-Caps are hotglued to the daughter board This time besides the Kester 44 eutectic solder I used Cardas paste solder flux which made a fantastic difference in the ease of soldering.
    d6utge9um875.jpeg


    Radio Station W7ITC
  • Tony MTony M Posts: 5,361
    I love my Monitor 10's too but dang, you went BIG fixing yours up! Good for you. ;)
    :o B)
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • F1nutF1nut Posts: 39,611
    Just wanted point out that the protection in your Yamaha and the fuse or poly in a vintage Polk serve two very different purposes.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


  • transmastertransmaster Posts: 426
    Yes I am well aware of the difference but I have had PA failure that blasted these 10B’s that got past the polyfuse. As you know the B Model is not fused like the A model.
    Radio Station W7ITC
  • FaustinFaustin Posts: 727
    Them is some big cans. Will be curious as to how they sound after some burn in
  • pitdogg2pitdogg2 Posts: 9,831
    Yes I am well aware of the difference but I have had PA failure that blasted these 10B’s that got past the polyfuse. As you know the B Model is not fused like the A model.

    A spiked clipped signal happens faster than the polyswitch can react. That is well know and documented.
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