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  2. Yes, the grills are gone. I'm a fully aware of the fact that these are never going to sound like AR originally intended. But regarding L-pads, what kind do i need? And how do i hook them up.? Regards, Ben
  3. I now attach 2 pdf documents that describe how I have refurbished my AR-16 speakers - Part 3 will follow after I replaced the capacitors. Part 1 a) Over view of speakers b) Description of Front Cover c) Removing Woofer d) Cleaning the rear frame and magnet of the Woofer e) Removing glue from front frame of Woofer f) Removing glue from paper cone Part 2 g) Removing Tweeter h) Taking Tweeter apart i) Cleaning and painting the Tweeter j) Painting Woofer frame k) Attaching new foam to Woofer Part 3 l) Remove stuffing / filling m) The crossover n) Crossover diagram o) Replace Capacitors p) Box construction / materials q) Re-assembly r) Testing AR-16 Refurbishment part 2.pdf AR-16_Refurbishment_part_1.pdf
  4. The rings which were attached to the mids' missing grills contributed to dispersion, which unfortunately is another departure from the original voicing of your speakers in their current state. The grills could have been removed without cutting, and reshaped. I assume they are long gone at this point (?). Roy
  5. I'm glad the thread is helpful, that was the intent! I'm in agreement with you regarding the grills. It wasn't intensional, but I like that they are slightly sheer, revealing hints of the drivers. Enjoy your 12's, they're special speakers.
  6. Thanks Glenn, found the replacement parts using your parts list and have them on order. Will spend time figuring out alignment as they do not appear to require shims. Will invest some time learning technique. I did replace the red/black original caps with Dayton NPE last week and found a whole new speaker to listen to. Learning that craigslist purchases still require cracking the case open even thought someone replaced the foam surrounds. Just want to share my appreciation for the details on your rebuild. Provides all key points to restore a pair of AR12's to like new condition. The grill specs alone cover a whole list of systems from that era. Original foams from that era are hard to find, and your replacement design actually looks better than the foam, IMHO. Kudos to you
  7. Thanks, much appreciated! You got a great deal on yours! Yes, yours Re original, except the surrounding foam trim is gone, and the basket was painted black. The foam surrounds are original, clearly repaired with what looks like a thin application of silicone. They won't last much longer. I would do a recap as well. Those black caps are crap and out of spec by now. Cheers, Glenn
  8. Yesterday
  9. There is a benefit to fixed resistors. If you get the fixed resistance set so the crossover points are correct the mid and tweeter outputs will be matched across both cabinets without accounting for any variation between like drivers. You can use your equalizer to increase or decrease entire driver bands with modest adjustments. This is similar to later ARs made with no attenuator controls after equalizers became affordable.
  10. They have higher output, since the radiating surface of the dome is now uncovered. Thats why i needed to lower its output through resistors.
  11. Alright. Since i am the novice here, any kind of advice i always take in consideration even when its the wrong kind of advice.
  12. What effect will the absence of damping material have on the midrange drivers?
  13. OK. Just for giggles I cobbled one together. It works.
  14. Roy was too polite to say it bluntly but your friend is wrong. Look at the AR-3a Restoration Guide, written by experienced restorers including Roy (THE resident expert) and johnnieo (an EE professor). Your fixed resistors threw things WAY off. You will be infinitely better off with L-pads. Kent
  15. I meant 120’s in general, not the surrounds on your particular pair. The pictures are pretty good, and yours look to be intact, but time is against you. After 20 years or so the foam really starts breaking down. Once you loose the air seal of the surrounds the bass deteriorates along with them. Bill
  16. Thank you for your expertise. I am merely a hobbyist that knows little to nothing about crossovers. I will look into that.
  17. Ohh, i have music on a NAS. The streamer does also play from LAN.
  18. Does this mean all your music files are rented or public access instead of owned. No local storage?
  19. Using only series resistance changes the crossover points, and the amount you used changed them rather significantly. Consequently, you are no longer listening to any version of the AR-5. The best way to implement fixed resistors is to mimic a preferred setting of the original AR 15 ohm pot. For example, 3 ohms in series and 12 ohms in parallel, an often preferred mid setting, is equivalent to a bit less than a quarter turn off maximum. All series/parallel resistor combinations should add up to 15 ohms. Doing it this way attenuates the tweeter and mid without changing the original character of the AR model. (L-pads work the same way, but with different series/parallel values, which is why the fixed 25 ohm parallel resistor is recommended when using 8 ohm L-pads.) Roy
  20. Nope, no turntable. Streamer into a DAC.
  21. Roy, i believe it was 8 ohms for the tweet and 5 ohms for the mid. In series of course.
  22. Amplifierz, What resistor values and configuration (series/parallel) did you use for the tweeter and mid in lieu of variable controls? Roy
  23. I got a miniDSP for that. If i ever feel the need to attenuate the mid when i change something in the chain.
  24. Jill

    Old Allison speakers

    Thanks, Bill. What do you see wrong with the surrounds on the woofers? Jill
  25. jimorf735

    grill cloth

    Old Post but still funny!!!
  26. Sounds like you will be ok with a 10 band graphic equalizer if you ever need to adjust the mid.
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