Recent content by Jmac

  1. J

    "DIY" enclosures

    It would certainly be a nice option, especially for enclosures that aren't a series of right-angle cuts.
  2. J

    Wtf is with people's used amp prices

    Used amp prices are too high according to OP turned into an RC amp challenge debate.
  3. J

    Wtf is with people's used amp prices

    From a reliability and design standpoint, yes. I don't want an amp that has capacitors leak after a couple of years, a poorly-designed system for connecting cables, a poorly-designed mounting system, etc.
  4. J

    Wtf is with people's used amp prices

    The challenge wasn't to prove that amplifer A sounds like amplifier B, it was to prove that 40 watts from amplifier A sounds exactly the same as 40 watts from amplifier B when you take all the other variables out of the equation (signal processing, distortion, harmonics, etc.). Will 2 different...
  5. J

    Wtf is with people's used amp prices

    Which is true, but people quote it like that means Amp A = Amp B, which isn't true because everyone uses signal processing in one form or another. That said, on a subwoofer amp especially (which is what most people buy amps for), those types of things are the least of your worries. The driver...
  6. J

    Wtf is with people's used amp prices

    My amps quite literally are (well, a significant portion of them, anyways) :P Of course, I'm not selling them. Really old school Pioneer Premier Class A amps :yummy:
  7. J

    highs too loud.

    Ditto, and you could also try resetting the amplifier at a lower volume setting and increasing the gain on the subwoofer amp to compensate. I'm assuming you have the 4x6s hooked up to the head unit and not a separate amplifier. If you have a separate amp for the 4x6s, turn the gain on that amp...
  8. J

    big 3 fuse

    Fuse for the wire unless you 100% know what you're doing. Since you're asking the question, you should probably just fuse for the wire.
  9. J

    Why do some amps cost so much more?

    Quality of parts, quality of design, quality of service, research and development, testing, manufacturing efficiencies, advertising budgets, business model, profit margins, etc.
  10. J

    2 amps vs 1 amp

    Under normal circumstances, a single amp (assuming similar efficiency numbers and curves) will almost always be more efficient than two amps. Less loss through wiring, less loss through internal components, etc. not to mention it would be cheaper and simpler to install. No real benefit to...
  11. J

    Simple Gain Setting Question

    If you're using it for musical purposes, use a -3 dB or -6 dB sine wave test tone to set the gains and use 700 watts @ 2 ohms (37.4 volts). I prefer using a 6 dB overlap, myself. As for your head unit, it's for level matching the sub with the rest of the system. Use it at the highest setting...
  12. J

    Korean Cars

    You realize Hyundai is part of GEMA with Mitsubishi (and formerly Chrysler), right ? The engines are primarily designed by former Mitsubishi engineers. And their "smarts" didn't come from a nuke, it comes from years of government regulation (which forced innovation) as well as a culture which...
  13. J

    mustang ported box design help

    Just remember with a Mustang that the trunk opening is very small (especially if you have a convertible). Measure your trunk opening before you measure your trunk space to make sure you can get it in comfortably (i.e. not pinching/scraping your fingers).
  14. J

    What do ya'll have your low pass filters set at?

    It depends on a lot of factors; your sub, your midbass drivers, the type of filters used (LR or BW), and the output levels of the amplifiers to the respective drivers.
  15. J

    when %thd is audible distortion?

    While driving, most people would be hard pressed to tell the difference between a song with 0.5% distortion and 5% distortion even with excellent drivers, amplifiers, damping, etc. If you use MP3s, as most people do, it'll be even more difficult to tell. BTW, your amp's rating is simply a...
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