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About Quintine

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  • Birthday 07/17/1989

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  1. Finally rebuilt my computer, not running on a 7 year old POS anymore!

  2. I doubt much if anything. Id do it but am located in AUS, so i doubt that helps much.
  3. I used 1500 @ 1ohm to work out the numbers. Just calculate for 1 ohm. So 1931 @ 1 and the amp will do the rest from there. But like reedal said, if u can get someone nearby to DD-1 it.
  4. ^ yeah thats a much better idea. But if your interested 75% of volume on most head decks is safe. the 38.72v is calculated using ohms law. and the multimeter probes go in the speaker outputs. Edit: Oh and if its subwoofer level then tune with the sub level at maximum (Afaik)
  5. The optima s are AGM's I know a non clipped test tone will send my single Optima from around 13.6 down to 10.6v just after turning my car off (On ill hold about 11.2 coz I still havnt got round to putting my new alt in and ran out of funds for new batteries) and im running 2400rms to the subs. So he shouldn't be having that much voltage drop on 1500 watts unless he has some crazy clipping.
  6. Yes verymuch. I cant think of many headunits I have used where bass boost should be set at anything other than 0. If you dont have access to a DD-1 or an O-Scope then multimeter will have to do the job. As its a Rockford its gonna do rated or more power so u can use a multimeter to set gains (U just wont get every absolute drop of power from the amp) With your head unit flat and no bass boost everywhere. Set the gains on your amp to push 38.72 (Or less) volts. should get you in the ballpark of being safely tuned. Make sure your test tone to set the gains is clean.
  7. Sounds like it might be clipping, that will cause the amp to pull lots more amps causing more voltage drop and a toasty amp.
  8. http://www.speedtest.net/result/4446861246.png This is a good day. often its half... Oh how i wish i had your shitty connections. (Also ~62USD a month)
  9. Work out the actual power draw you will need, how long you will need it to draw for. So say u run a 10k amp and its at 80% efficiency. And lets say u wanna run a sine wave for... 15 mins? (Imo a plenty brutal enough benchmark to work from) Watts needed from batteries would be calculated something like (10000 / 0. 8 - 4000 = 8500 That would be Amp draw - alternater output (With a bit leftover for hte car) Then take that 8500 watts and divide by 10.5 (Batteries being near flat) meaning u should need about 810 Amps of extra power available from your batteries. Depending on the battery AH output and how long they are rated to do said output you can workout how many batteries you will need, and hopefully have some wiggle room. Edit: To work out AH AH = Amps/Time (So 810/.25 for a 15 minute draw) Then just match up the AH rating for the batteries you want. 202AH Would be: 2xD3100's 3xD2700's 3xD4900's 14xD375's Also note, I would put this as a minimum reasonable amount of batteries to run alongside a good battery up front.
  10. I would grab a program like WinISD Alpha (Free and pretty damn good) And do as much reading and watching videos on the yootoobs as possible. Read up on as many things about boxes and acoustics as you possible can. Then go and build a terrible first box that rips itself apart because you are a noobie at making things. Then start work on the real build with all you have learned. That is how I did things. Nothing teaches like mistakes.
  11. Now i may just be an upside down Australian, but I get the feeling that the nut is the wrong colour! Prevent Nut Discolouration: Always ensure your nuts are held firmly.
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