SPL Tips of The Day (March)
03-10-2005, 04:15 PM
#1
1000 Watt CAFz'r
Thread Starter
Join Date: Mar 2004
Posts: 1,093
ok.. figured this would be a good way to help ppl on this forum... everyday i will try and post an SPL tip of the day! here we go...
March 10/05
ALWAYS make sure you you take all tools, screws, and ANY LOOSE items out of your subwoofer box beofre you burp your system! I found this out the hard way! i had a roll of duct tape in my box, which lost me .3-.4db's. No one noticed until the day i was leaveing after all the shows.. [img]graemlins/freak.gif[/img] (thanks Rob V.O...
)
Livin Loud
March 10/05
ALWAYS make sure you you take all tools, screws, and ANY LOOSE items out of your subwoofer box beofre you burp your system! I found this out the hard way! i had a roll of duct tape in my box, which lost me .3-.4db's. No one noticed until the day i was leaveing after all the shows.. [img]graemlins/freak.gif[/img] (thanks Rob V.O...
)Livin Loud
03-10-2005, 11:47 PM
#4
1000 Watt CAFz'r
Thread Starter
Join Date: Mar 2004
Posts: 1,093
march 11/05
While you perfrom SPL testing, always try to make sure you have a steady climate, and temperatue while doing so for all your testing. Humidity, Air Pressure, Temp, can all effect the mic, and alter your scores different. I know the old termlab was VERY picky about stuff like this, and it seems the presure mic is also somewhat sensitive to changes in climates. If you test ina 24/7 controlled climate you will find results to be alot more accurate, and testing a lot more effecient. (i do understand that not eveyone has a shop or place to regulate this, but when we did, AS you cna tell.. we tested ALOT of different things! )
Livin Loud
While you perfrom SPL testing, always try to make sure you have a steady climate, and temperatue while doing so for all your testing. Humidity, Air Pressure, Temp, can all effect the mic, and alter your scores different. I know the old termlab was VERY picky about stuff like this, and it seems the presure mic is also somewhat sensitive to changes in climates. If you test ina 24/7 controlled climate you will find results to be alot more accurate, and testing a lot more effecient. (i do understand that not eveyone has a shop or place to regulate this, but when we did, AS you cna tell.. we tested ALOT of different things!
)Livin Loud
[img]tongue.gif[/img]
03-12-2005, 09:09 AM
#6
50 Watt CAFz'r
Join Date: Feb 2004
Posts: 265
151 street A not bad kurtis what subs did you use to hit that the DD's or the kickers, just being a little nosie hope to see you hit 52 soon.
have lots of more work to do on my car,Its nice to see someone giving some tips to everyone and not holding back equipement info or install info like it's a secret or something. The whole point of getting info is to help people get LOUDER.
PS just on your heels in Street A, and hopfully in street B soon. Hope to see some Big #'s from every body soon!!
have lots of more work to do on my car,Its nice to see someone giving some tips to everyone and not holding back equipement info or install info like it's a secret or something. The whole point of getting info is to help people get LOUDER.
PS just on your heels in Street A, and hopfully in street B soon. Hope to see some Big #'s from every body soon!!
03-13-2005, 06:51 PM
#7
This is Kurtis(livin loud) under chris's name
ya in street A i'm actually a bit higher than a 151... but it's a goood start! i can't wait till summer, and do even more testing, and for all the shows.
March 13/05
Tip of the day\
if you need help in doing something.... just ASK! (lame one day, but very useful.... i'm at perfect tones in Milton right now)
Livin Loud
[ March 13, 2005, 07:52 PM: Message edited by: Perfect Tones- Chris ]
ya in street A i'm actually a bit higher than a 151... but it's a goood start! i can't wait till summer, and do even more testing, and for all the shows.March 13/05
Tip of the day\
if you need help in doing something.... just ASK! (lame one day, but very useful.... i'm at perfect tones in Milton right now
)Livin Loud
[ March 13, 2005, 07:52 PM: Message edited by: Perfect Tones- Chris ]
03-15-2005, 11:58 AM
#8
1000 Watt CAFz'r
Thread Starter
Join Date: Mar 2004
Posts: 1,093
March 15/05
Well... my brian ain't working yet today, as i just got home from T.O... but here we go..
when you hook up your subs, and amps, make sure you have the correct impedence load, on the amplifiers. I have seen ppl try to hook up a dual coil in parellel, instead of series, and "POOF" there goes the amp, cause it was loaded @ .5 ohms instead of 2ohm [img]graemlins/freak.gif[/img]
solution to this.. get a multimeter, and learn to sue the "resistence" control on them
Livin Loud
[ March 15, 2005, 12:58 PM: Message edited by: Livin - Loud ]
Well... my brian ain't working yet today, as i just got home from T.O... but here we go..
when you hook up your subs, and amps, make sure you have the correct impedence load, on the amplifiers. I have seen ppl try to hook up a dual coil in parellel, instead of series, and "POOF" there goes the amp, cause it was loaded @ .5 ohms instead of 2ohm [img]graemlins/freak.gif[/img]
solution to this.. get a multimeter, and learn to sue the "resistence" control on them
Livin Loud
[ March 15, 2005, 12:58 PM: Message edited by: Livin - Loud ]
03-16-2005, 12:08 AM
#10
1000 Watt CAFz'r
Thread Starter
Join Date: Mar 2004
Posts: 1,093
March 16/05
"A 5 dB noise reduction is about 30% quieter and represents a 50% decrease in the risk of hearing loss!"
the threshhold of pain lies @ 140dB's as well.....
i thought this would be an intersting point for today! imagine what sitting in a 130dB vs a 150dB system is really like?
Livin Loud
[ March 16, 2005, 01:09 AM: Message edited by: Livin - Loud ]
"A 5 dB noise reduction is about 30% quieter and represents a 50% decrease in the risk of hearing loss!"
the threshhold of pain lies @ 140dB's as well.....
i thought this would be an intersting point for today! imagine what sitting in a 130dB vs a 150dB system is really like?
Livin Loud
[ March 16, 2005, 01:09 AM: Message edited by: Livin - Loud ]
