General SPL General discussion of Sound Pressure Level topics.

Who would like to learn how to Spl?

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Old Jan 14, 2011 | 11:55 AM
  #31  
Lessy's Avatar
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Originally Posted by Father Yuli
Les you should start with a sealed box and go from there.

first just port it randomly, then tune the port, then change box size, etc in whatever order. do it with a small amp as well, something like 2,000 watts or less.

i'll film if you want.
Sounds like a good idea.
Old Jan 14, 2011 | 12:25 PM
  #32  
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I think this is probably one of the better ideas, it will help newbs come in, and not be AS scared when they come to a show and hit a mid 20 on TL, lol. I remember going to my first show in ontario, and it was an eye opener. once its done and created, I think it will be stickied and kept..cause it could be a great reference tool
Old Jan 14, 2011 | 01:55 PM
  #33  
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Originally Posted by Murilo
exactly! one of the first things should be teaching how to NOT burp for more than a couple seconds and always charge between burps, with a cooling interval.
With big power I cans see how this would be important, but with my simple 5k setup with a large 3100 (2150) battery right beside the amp I can do 3-4 burps before my score even looses a tenth. Helps a lot since I do my testing in the middle of nowhere.
Old Jan 14, 2011 | 01:57 PM
  #34  
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i think that was more towords newcomers since im sure everyone will agree you see a newbeee come to a show and burp for over 30 seconds and fry their gear while all they have to do is burp for 3 or 4 seconds and save their stuff
Old Jan 14, 2011 | 02:34 PM
  #35  
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Originally Posted by SP Canada
We could add on an ask a judge segment at the end of every episode!
Very nice.. i like this..

I know there's always those grey area Q's & A's




Killer Klown's got it right man!! Get this up/going, skicky it, it will help ALOT of people out.
Old Jan 14, 2011 | 02:53 PM
  #36  
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Originally Posted by bland
With big power I cans see how this would be important, but with my simple 5k setup with a large 3100 (2150) battery right beside the amp I can do 3-4 burps before my score even looses a tenth. Helps a lot since I do my testing in the middle of nowhere.
all your fuses is what's kiling it for you, they are already stopping enough current. that's why you can do a few burps before your score drops.

without fuses your score should drop every burp when you have nothing limiting the current draw.
Old Jan 14, 2011 | 03:21 PM
  #37  
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I tested with the fuses out before finals. No change, same score.

My battery in the rear can support the 5k, and also clamps consistently over 4k.

I was really hoping for a gain going fuseless
Old Jan 14, 2011 | 03:29 PM
  #38  
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Other reason could be that the front battery is just not strong enough to make a difference (kinetik), but not weak enough to hurt the score.

With the amount of power I clamp, I'm more than happy. Just need to work on my design more. Made a mistake this summer of building the same box over, and over with small change, which of course gave me small gains or losses.
Old Jan 14, 2011 | 03:30 PM
  #39  
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Originally Posted by Father Yuli
Les you should start with a sealed box and go from there.

first just port it randomly, then tune the port, then change box size, etc in whatever order. do it with a small amp as well, something like 2,000 watts or less.

i'll film if you want.
I'll bring the coffee.
Old Jan 14, 2011 | 09:19 PM
  #40  
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connect a charger while testing, use either the voltage or the current (better) as a referential, after the burp (charger off) you charge back to your reference voltage. This also helps VC cooling (higher temperature higher Re - less current drawn form the amps output - higher impedance rise, less power).



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