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JimJ

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Everything posted by JimJ

  1. JimJ replied to uglydimple12's topic in Fi Technical
    "Full potential", to some degree, is a mental thing...nothing that says you have to run a sub at full rated RMS power to be happy, I don't know where that came from. All this worrying about sending every last watt of power to the driver seems silly to me. If you're not happy with the output, that's another thing - but I highly doubt you'll notice much of a difference by adding 400W.
  2. JimJ replied to flakko's topic in General Audio
    Not sure I'd even go that far...
  3. The Sundown woofer might be a good choice in that price range. Creative Sound Solutions in Canada has a bunch of stuff in the under $150 class too.
  4. Certainly couldn't hurt things. Whatever way is easiest for you...as long as the panels are securely glued and held together, and the hole is a snug fit for the woofer, it's not too critical.
  5. Because you'd need to have the box clamped for a month before you could do anything with it Very long curing time... Coarse thread drywall screws work fine, just make sure you predrill the holes to avoid splitting the wood.
  6. Don't do that. Use a good wood glue, like Titebond or Elmer's, instead of Liquid Nails.
  7. JimJ replied to uglydimple12's topic in Fi Technical
    Honestly, I would probably keep it the way it is, or add another sub to drop the impedance.
  8. JimJ replied to flakko's topic in General Audio
    http://www.audiojunkies.com And yeah, it's nice
  9. High Q midbasses are sometimes used in open baffle...a lot of vintage Alnico-magnet speakers had Q's over 1, to make usable bass with no enclosure involved.
  10. Multiple runs of heavy gauge wiring, and solid connections.
  11. If you're dealing with a lot of power, sizing the system to eliminate all voltage drop could get expensive. There's a reason why dB Drag guys have 16 or more parallel runs of cable; fractions of a volt lost could be what makes a first place into a second. So unless you're chasing that kind of diminishing returns, ultimately you're going to get to a point where some voltage drop is acceptable.
  12. Putting a clamp meter on the outputs.
  13. JimJ replied to airbear's topic in General Fi
    Are you sure of that 950W? Burned up tinsel leads indicates something's wrong with the way the amp is set up.
  14. Turn it down? You have to ask yourself how much drop is acceptable, and size everything to meet that goal...
  15. Even with a perfectly unclipped signal, a DMM won't tell you the whole story... A DMM didn't tell me I had a 10 ohm impedance rise and was only sending 200W to the woofer during a burp
  16. JimJ replied to Parker's topic in Sundown Audio
    Should work fine.
  17. What do you have for power? If I was starting out again, I'd go active and assemble a front stage from individual drivers...
  18. Personally, I wouldn't bother.
  19. JimJ replied to mrray13's topic in Off Topic
    As much as it kills me, I can't hate on their product too much The owners are a different issue.
  20. This was only from one pair of amps, the others were very close. http://www.carstereos.org/gallery/showimag...=4115&c=188 - the battery bank, plus a 60A rapid charger was the power supply for those tests. Let's see some Z1/Z1A results
  21. Your Atlases loved the higher tuning on rap, whatever you had them up to...
  22. Hey... If you can't tell, SSA's gotten a bit more traffic since the last time you were around
  23. $500's possible, sure.
  24. And you didn't like the response of the sealed setup?
  25. Bottlehead has won some awards at audio shows for their open reel demos: http://www.bottlehead.com/et/adobespc/Sedu...eheadpreamp.htm It's pretty cool, but I just can't see the format being anything but a novelty. It's not like there are a lot of new releases coming out on it...unlike LPs.

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