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Adire AVA250 Schematic Diagram

Discussion in 'Speakers & Subwoofers' started by starguy, Oct 9, 2018.

  1. starguy

    starguy Auditioning

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    Gregory Furtman
    A number of years ago I built a 142.5L subwoofer with a down-firing 12" Shiva driver, a 15" front passive radiator, and an AVA250 plate amplifier. It has served me well and sounds great!

    Last week the AVA250 started buzzing. It has an auto-on circuit that when it detects a signal the amp turns on and when my Denon receiver is turned off the AVA250 is supposed to return to the off sleep mode. It's not doing that now.

    I have looked online for a schematic for the AVA250 with no luck. Anyone here on the forum have a schematic or know where I can get one?

    Also, my 12" Shiva has bottomed out too many times and is starting to bang when hitting bottom. Any suggestions on which subwoofer driver I should replace it with considering it is in a 142.5L box with a 15" radiator?

    Thanks.
     
  2. Robert_J

    Robert_J Lead Actor

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    Why don't you ask Dan if he still has a schematic - https://www.danwiggins.net/

    There is a Shiva on Ebay right now. The Eminence Lab 12 should work. Others recommend the Dayton Audio RSS315HF-4.

    Did you post about this issue on another forum about 6 months ago? Both posts mention 142.5L enclosures. It's odd that 2 people would be so specific.
     

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