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  1. Help for a box design? (First time builder)

    Fabrication, Tools & Tricks of the trade
    I recently purchased a Treo SSX 15" woofer that came with a crappy box so I want to make a new one but I have no idea how to calculate any of the port area things and the calculators do not work with the space in my trunk. The manufacturer recommends 3.5 cb/ft @ 29.4 hz with a 50sq/in vent...
  2. Normal vs Reverse Phase Queery

    Technical & Advanced Car Audio Discussion
    So focal utopia 4 way active, no. 7 + 21wx sub off a pioneer p99rs. All set up, been going for a few months, my install has the mid and tweet above dash near A pillars, and mid/bass in bottom of doors with sub in boot. It all sounds great, got it TA'd pretty much right in front of my face...
  3. time alignment, still confused

    General Car Audio Discussion
    OK I've read all I can find on this, and think I understand the basic principle of time alignment. Basically it adjusts the delay times from each speaker so that sounds meet simultaneously at the listener, I get that. But I'm a nerdy noobie, and I always make **** complicated so here goes...
  4. Precision time alignment using only noise tracks and your ears

    How-To Articles Provided by our members
    Introduction First of all, I’m not a professional, just someone who used to be obsessive about mobile audio. So, please forgive any misuse of terms or definitions. Digital time alignment (abbreviated as TA) was the driving force behind my first active system. Based on recommendations by this...
  5. help w/ dialing in time alignment

    Technical & Advanced Car Audio Discussion
    ok, so temporarily i'm using my oem midrange and tweeter drivers...mids located high in the doors, tweeters mounted in the sail panels. i've got l8 midbasses running in the doors below the mids and an idq-12 acoustically sealed to the cabin via the ski pass in between the rear seats. here is a...
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