Just wanted to make a correction... a 3dB increase = approximately double the volume (1.99526 to be exact), not 10. So, in fact you already are getting double the volume since your increase was from 114 to 117 dBs...
it is best to not try and correct someone unless you are 100% sure you are correct decibels are logarithmic, so a 10 dB increase = twice the volume. but what do i know, i've only competed in stereo competitions since i was 16 (11 years now) and was an IASCA judge for several years as well
Quote:
Originally Posted by mxsjw
Another correction...
A 3db increase requires twice the power and is only an incremental adjustment in perceived loudness - 9-10 db is considered 'doubling' loudness.
Many get this confused, and most manufacturers use that confusion to sell products.
that is correct. a 3 dB increase could require the same power with double the drivers (in reference to speakers). speaking from a subwoofer perspective, if you where to double the number of subs and doubled the power supply (second amp, or an amp that is twice as powerful), it equates to about a 6 dB increase. however, those are only generalizations. the higher you go, the harder it is to increase the loudness/dB's, since it is not perfectly linear.
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2.4" front/1" rear leveling kit - toyo A/T 285/75/18 tires - bull bar with hella 500FF lights - 20% tint side and back windows - 55% full windshield tint
in the works:
stock HU -> LOC -> PPI FRX-456 -> DLS A4 + Marathon 6150 -> DLS iridium 6.2 comps + Hybrid-Audio L3's + 4 Tang Band W6-1139SI's
to come:
JBL MS-8 + center channel speaker + components for the rear + sirius adapter for stock HU
hopefully tomorrow i'll install both stock horns with the pair of stebels. i'll take some pics and video clips. i'll just be tapping into the stock wiring to power the stock horns, since the relay activation require such a small amount of current it won't effect anything.
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2.4" front/1" rear leveling kit - toyo A/T 285/75/18 tires - bull bar with hella 500FF lights - 20% tint side and back windows - 55% full windshield tint
in the works:
stock HU -> LOC -> PPI FRX-456 -> DLS A4 + Marathon 6150 -> DLS iridium 6.2 comps + Hybrid-Audio L3's + 4 Tang Band W6-1139SI's
to come:
JBL MS-8 + center channel speaker + components for the rear + sirius adapter for stock HU
OMg,another great idea and,i have some work to do soon.I only have 1 stebel and 1 factory horn,look like im goin to have 1 stebel and 2 factory horn soon.Thank's to this great forum.
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2007 DC,Blue strike metallic,BBS rims,3rd ligth cover,x-sp,trd,calipers painted in blue.Chrome strips around the tailgate,,bug shield,wind deflectors.Side bed rails.G2 bakflip cover.TRD CAI,Alpine 2-1023d woofer,6x9 front dr,and 6x5 back dr speakers.1 Hifonics amp 4 channels,1-1000 wtts crunch amp for woofers.Dynamat all dr's,and back wall.Head ligths paint mod in black. Custom box 2 -10" woofers by Tech12volts.Chrome towing mirror covers,tail gate handle chrome cover,dr handle chrome cover.Billet grill top and bottom and bumper insert.Custom made dr sill's and dr pillar overlay by Billet technology.Stebel horn.More to come.
OMg,another great idea and,i have some work to do soon.I only have 1 stebel and 1 factory horn,look like im goin to have 1 stebel and 2 factory horn soon.Thank's to this great forum.
I agree. i will be doing the same tomorrow if time permits.... Thanks everyone for sharing.
JUST HOOKED UP MY SECOND STOCK HORN. OMG!!! WITH BOTH STOCK AND THE STEBEL IT IS FREAKIN LOUDER THAN WITH JUST THE ONE STOCK!!! I TOOK IT FOR A TEST OUT ON THE STREETS AND WHEN I WAS GOING THROUGH THE OVER PASS I BLEW THE HORN AND MAN DID IT SOUND JUST LIKE THAT HORNBLASTER TRAIN HORN!!! IT ECHOED REAL NICE THIS WAS A REALLY THE MOST FUN MOD I DID WITH MY 07 TUNDRA!
now i am really eager to go hook up the stock horns again, but its too late oh well, tomorrow i'll have them hooked up
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2.4" front/1" rear leveling kit - toyo A/T 285/75/18 tires - bull bar with hella 500FF lights - 20% tint side and back windows - 55% full windshield tint
in the works:
stock HU -> LOC -> PPI FRX-456 -> DLS A4 + Marathon 6150 -> DLS iridium 6.2 comps + Hybrid-Audio L3's + 4 Tang Band W6-1139SI's
to come:
JBL MS-8 + center channel speaker + components for the rear + sirius adapter for stock HU
OH BY THE WAY I REMOVED THE COVERS THAT CAME WITH THE STOCK HORNS. I SAY IT IS NOTICEBLY LOUDER WITH IT OFF. I DID THE STOCK HORN INSTALL AS MTROSCALIR DID....THANKS DUDE FOR THAT PICTURE!
OH BY THE WAY I REMOVED THE COVERS THAT CAME WITH THE STOCK HORNS. I SAY IT IS NOTICEBLY LOUDER WITH IT OFF. I DID THE STOCK HORN INSTALL AS MTROSCALIR DID....THANKS DUDE FOR THAT PICTURE!
Yea...he definitely went way beyond what I was expecting. Really awesome!
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DCSB SR5 2WD
-THE MONSTROUS 5.7, 6SPD AUTO, TOW PACKAGE W/4.30 GEARS BABY!, STEBEL 300HZ TRUCK HORN+2 FACTORY HORNS, K&N 77 SERIES INTAKE, TOYTEC 3" LIFT, DEBADGED SYLVANIA H9 LOW BEAM MOD (2100 LUMENS), HIR1 HI BEAM MOD (2350 LUMENS), SILVERSTAR EURO SIGNALS, BLACK HEADLIGHT MOD, BLACK BADGE, JBL 440W SYSTEM W/ NAV W/ BACKUP CAM, SONAR, ESCORT PASSPORT 8500 X50 RADAR, MOTO METAL 951 18" RIMS, MAGNAFLOW 14" 2 IN/2 OUT CATBACK EXHAUST -SYSTEM WITH 4" MAGNAFLOW TIPS, BFG TA KO 285/65/18's!!(32.7"), PIONEER PREMIER SPEAKERS, 2 PREMIER 10" SUBS, 2 KICKER AMPS!!!
"As I walk through the valley of the shadow of death I have no fear because I am the meanest motherf*cker in the valley"
Re: New Stebel 300 Hz Truck Horn
decibels are logarithmic, so a 10 dB increase = twice the volume. but what do i know, i've only competed in stereo competitions since i was 16 (11 years now) and was an IASCA judge for several years as well 
WITH BOTH STOCK AND THE STEBEL IT IS FREAKIN LOUDER THAN WITH JUST THE ONE STOCK!!! I TOOK IT FOR A TEST OUT ON THE STREETS AND WHEN I WAS GOING THROUGH THE OVER PASS I BLEW THE HORN AND MAN DID IT SOUND JUST LIKE THAT HORNBLASTER TRAIN HORN!!! IT ECHOED REAL NICE
THIS WAS A REALLY THE MOST FUN MOD I DID WITH MY 07 TUNDRA!
oh well, tomorrow i'll have them hooked up 
Linear Mode
