SPL jump?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=28764
Printed Date: May 16, 2025 at 11:04 PM
Topic: SPL jump?
Posted By: superstreet786
Subject: SPL jump?
Date Posted: March 21, 2004 at 4:07 AM
Hey everyone, about a couple days ago I got my final system done. 2 200 watt RMS Lightning Subs and 1 300 watt RMS Lightning Subs powered by a 600 and a 500 watt Lightning amps. Back when I just had a 360 watt RMS sony amp and the 2 300 watt RMS Lightning subs I was hitting 142 db... I was wondering if maybe I could get a ballpark figure on what Id hit now... these are in a 92 VW Jetta and all boxes are Sealed. Thanks
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---- 1996 Chevy S10 ----
1 Lightning Audio S2.600.2 Amp
2 Lightning Audio 12" Subs
1 Lightning Audio 1 Farad Cap
Replies:
Posted By: Ketel22
Date Posted: March 21, 2004 at 4:53 AM
besides changing the amps did you change any thing else? are they the same subs (you gave different ratings) is the box, the positioning... everything else the same?
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Quad L Handyman services
Posted By: superstreet786
Date Posted: March 21, 2004 at 12:37 PM
Ok i changed the amps out and at the time I only had the 2 300 watt Lightnings but now I added 2 more 200 watt Lightnings (not one it was a typo). The 300 watt subs are facing the rear of the trunk, the 200 watt subs are facing eachother from the sides. The only real change was better amps and 2 more subs facing in on the sides
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---- 1996 Chevy S10 ----
1 Lightning Audio S2.600.2 Amp
2 Lightning Audio 12" Subs
1 Lightning Audio 1 Farad Cap
Posted By: Ketel22
Date Posted: March 21, 2004 at 2:51 PM
really that is too many things, that have been changed to give any sort of guess to what your spl levels might be nowl. i think it is reasonable to guess it is higher but how much higher nobody can really tell.
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Quad L Handyman services
Posted By: Alpine Guy
Date Posted: March 21, 2004 at 4:17 PM
prolly about 3 to 6db higher, , no more
Posted By: DYohn
Date Posted: March 21, 2004 at 4:45 PM
... or 3 to 6 db (or wosre) lower if the setup is not perfect and you get acoustic phase cancellation. Running multiple sub locations and trying to go for SPL is one of the most difficult thing to get set up right that I can think of.
Posted By: 94bonny
Date Posted: March 22, 2004 at 10:10 AM
so you have 4 lightning audio 12s and your going for spl?
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Alpine cda 9813
jl 500/1
eclipse aluminum 15"
Posted By: superstreet786
Date Posted: March 23, 2004 at 3:00 AM
I love the bass obviously and local competitions are very easy to win here so yea I like goin for the SPL and dont say get this and that because I love lightning audio in everyway as far as SPL, sound quality, looks, all around good brand to be except for the Bolt series.
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---- 1996 Chevy S10 ----
1 Lightning Audio S2.600.2 Amp
2 Lightning Audio 12" Subs
1 Lightning Audio 1 Farad Cap
Posted By: thapimpfromchi
Date Posted: March 23, 2004 at 3:50 AM
Lightning audio = Rockford Fosgate. Not the best, not the worst. If you like it, thats all that matters. However, did you say you were hittting 142 db with just 2 12s??? I have 3 tens, I have never gotten it metered, but I'd be lucky to get a 130. Are you using ported boxes? ------------- 1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
Posted By: thapimpfromchi
Date Posted: March 23, 2004 at 3:52 AM
oops. re-read the post. sealed boxes. got it.
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1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
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