Listed below is a range of 1st`s scores as they have been achieved.

1st to hit 150dB @ 20Hz
Mega Heavy Bass - Ford Escort - 4x Stereo Integrity Magnum - 5k -
Achieved 2007
150.5dB









1st to hit 155dB @20Hz
The Joose (PROJECT BIG BLACK) - Mitshi Shogun -16k -
Achieved June 2010
156.3dB










1st to hit a peak frequency of 155dB+

Mega Heavy Bass -Ford Escort - 5x Stereo Integrity Magnums - 6k -
Achieved Early 2008
155.3dB @ 32Hz










1st to hit a peak frequency of 160dB+  -VACANT








1st to hit an Average 155dB+
Ian ICEMAN Pinder - Astra Van - 6x Orion HCCA - 15k -
Achieved 2008
155.8dB










1st to hit 150dB+ in No-Wall
Jamesey - 4x JBL GT5 10"s - Ported Box - 3400wrms -
Achieved 2008
151.6dB @ 25Hz
1st to Average 150dB+ in No-Wall
Jamesey - 4x JBL GT5 10"s - 3400wrms -
Achieved 2008
150.2dB
1st to hit 150dB @ 20Hz in No-Wall
Jamesey - 4x JBL GT5 10"s - 3400wrms -
Achieved 2008
150.2dB










1st to hit 155dB in No-Wall  -VACANT








1st to hit 150dB in BOOT BOOMERS
Richard VX Incar - Golf Estate - 4x Orion HCCA 12"s - 8k -
Achieved 3rd April 2009
150.9dB @ 38Hz











1st to hit an Average of 150dB in BOOT BOOMERS  - VACANT
1st to hit 150dB @ 20Hz in BOOT BOOMERS  - VACANT









1st to hit 150dB+ in BOOT BOOMERS EXTREME
Drew B - Smart Car - 1x 15" Orion HCCA - 2.5k -
Achieved May 2010
152.7dB @ 31Hz











1st to Average 150dB+ in BOOT BOOMERS EXTREME
DrewB - Smartcar - 1x 15" Orion HCCA - 2.5k - Achieved May 2010
151.2dB











1st to hit 155dB+ in BOOT BOOMERS EXTREME - VACANT









1st to hit 150dB+ @ 20Hz in BOOT BOOMERS EXTREME
DrewB - Smart Car - 1x 15" Orion HCCA - 2.5k - Achieved May 2010
150.2dB
          SPL Testing @ Ultra Low Frequencies                                                             Testing your car audio system  at its Peak SPL       and at four set frequencies of.....40Hz......33Hz......25Hz.....20Hz....................
Copyright © 2011 by "Marcos H Barnes"