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Neo_frog

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Posts posted by Neo_frog

  1. No way to be out of phase randomly. And yeah, they are moving, but you can't see if one is just acting as a passive radiator (i.e. blown) with your eyes alone. I suggest pop testing from the amp to make sure they are both getting signal. Then test AC voltage off the amp on both terminals. Please list your current amp also.

  2. this port area is perfect for this volume and these subs, but then again, you dont have to take my word for it, i just know every enclosure i have designed thus far has been fairly decent....

    I've done 300+ designs for other people, and I have never in my life used 30in^2 of port for a pair of 12" subs. Also, using winISD you get a vent mach of .13 using a 5.5"x5.5" port(assuming same sd and xmax as a normal lvl3). Still in the green according to the program, but just barely. And most of the stuff I do keeps vent mach below .7 or so. If you were to use three 4" aeroports, I'd say you'd be fine because the flares obviously cut down on turbulence at the port openings. But a standard slot port that size is going to have noise issues, plain and simple.

    I just did 72sq of port for eight 10s.. :ph34r:

    There is nothing wrong with using small ports. Now..I don't agree with makin a small port just to meet tuning desires necessarily, but rather to meet some air compliance and response goals.

    Port noise is so easy to avoid, but I've never had the problem.

  3. What kind of form do you have when your doing them. If your doing perfect form 260 should NOT be easy. I'm 5'9" at 165lbs and i can BARELY do a set of 10 at 180lbs with perfect form. And i have been going to the gym at least 3 times a week for the past 6 months with stupid strict discipline.

    Why do you say that?

    Being a running athlete, I would say to stay in the 10-12 rep range with proper form, and try controlled down explosive up reps, but don't bounce. Pause at the top of each rep, it should almost feel like 12 singles. 4 sets of 12 followed by bodyweight plyometrics (box jumps and such) would be a good compliment to the sports. If you do the squats the way i've stated, I doubt you will using 260.

    This. And I don't believe 260 with perfect form is very difficult at his weight. Maybe at first, but after about three weeks (three to four times doing legs) you'll be laughing at it.

    It's easy to get cocky with yourself once you start repping higher numbers. Don't let the 300 or 400 point get the best of you. Concentrate on the form, otherwise you might as well not work out legs. I'm 6'2" I hover between 190 and 200 and I can rep 450 six times, with good form. NOTE: I never said I did it easily lol. It's very taxing, and I only to it for one set. I like to consider my "MAX" set my 6 rep point. I don't believe in "maxes".

  4. So I'm selling off the PT finally.

    Right now, I'm selling for $500 because it needs a bit of work, but the issues preventing it from driving are minimal if you have any experience under the hood.

    Positive

    Low sale price - $500

    Prebuilt 24cu shell

    1-3 layers of deadener throughout entire car

    2 custom door panels

    Bracket built for second alternator

    Can fit D3100 under hood

    Engine in perfect condition

    Bagged in the rear (port under license plate)

    Negative

    Tranny needs work. Won't shift out of second gear in "Drive"

    Alts are pulled and need repair

    Radiator fan must be switched (bad relay)

    So that's what's up with it. I'm selling it as a project car if you want it, otherwise it's going to the junkyard. A LOT of work is done to it for car audio, so hopefully that's some incentive. It would need to be picked up locally on a trailer or towed as it sits.

    I can throw in a battery for a little extra if needed. Sorry for the low lighting pics, but I only have a week to get rid of it. I'll try to post better ones tomorrow.

    Click the link to my album with all of the pics. I can't seem to image tag it from facebook. I'll photobucket later tonight.

    http://www.facebook.com/album.php?aid=2895275&id=13746130&l=b2615574b8

  5. That's a great site for vinyl and everything associated.

    The stretch levels are just how the threads are woven in the back I believe. The four way stretch stuff will be your best bet if you have little experience with wrapping. (I'm learning the hard way right now lol)

    Make sure you get some good adhesive if you're going to be messing with a lot of curves. (Also...I'm learning the hard way)

  6. You're not far from it..

    I've been able to hover 190-200 and I'm 6'2". Granted, I have the metabolism of a freak of nature. It's extremely difficult for me to make size gains, so I've concentrated on pure strength training disregarding size/weight. I've pulled off some incredible numbers for my size and the looks just came with it. A byproduct, if you will.

    Everybody is different though. We each have a different response to biomechanical stresses.

    I say, don't waste your money now. Take a few months to learn what your body responds best to. You won't see changes overnight, so don't lose your motivation. The gym fills up every year in January, then empties by about February for everybody who got upset they weren't seeing results.

  7. So here's the deal man. Supplements are a great tool when they are used properly. When I say properly, I mean your body actually has a demand for the nutrients whether it be from lack of intake, or high intensity training where all of them are expended and there is a need for more in order to facilitate repair.

    I cannot say how they will affect your results. I don't know your diet or routine. So I'll assume since you just started again, and you're asking for some info, that you do NOT need them.

    Give me some of your goals/habits and I'll be able to help you more.

  8. Most people can't hear a difference in volume change unless it gets to/or exceeds a 3db change. Now while this is a big difference to those who have witnessed it...keep in mind... if your vehicle is pulling 135db @ db drag... you (under perfect conditions) would gain 3db by doubling your power. So for however much the amp and wiring costs you, you've moved from 135 to 138db...the question is...is ONLY a 3db gain worth the time and money? VS say...a better box? A better design? A better woofer could make the same difference given efficiency ratings...

    All about how you want to go about it.

    Side note: with regards to doubling overall output...for those who don't recall....you must multiply your original power by x10. so 500w...turns into 5000w in order to double the output.

    (Keep in mind these calculations are based in a perfect world; other things will play into this)

    I think your read wikipedia on the wrong day,

    double your output is roughly 3db gain,

    10 db gain is 10x

    20 db gain is 100x louder

    30 db gain is 1000x louder

    This is mostly right. I say mostly because human perception is too subjective for actual figures. But on the meter measuring compression, then yes.

    And just for some fun.. Think of 3dB roughly as doubling your pressure at a given point. (P + 3dB = P * 21)

    A simple equation to give you a rough idea what kind of compression difference you'll get

    Gain multiplier = 2(dB gain / 3)

    Example:

    10dB gain

    Gain multiplier = 2(10/3)

    Gain multiplier = 10.07

    20dB gain

    Gain multiplier = 2(20/3)

    Gain multiplier = 101.59

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