Untitled Page

SPL Testing @ Ultra Low Frequencies Testing your car audio system at its Peak SPL and at four set frequencies of 40Hz 33Hz 25Hz 20Hz //////////// The pd SPL format started booming in the U.K. in 2008. Created by Marcos H Barnes A.K.A. Mega Heavy Bass. A former SPL competitor.////////// dB readings are taken from the vehicles Head Rest The doors and windows are allowed to be opened. Like to know more? ...Then please feel free to browse this site. Thank You For Your Interest. Copyright © 2011 by "Marcos H Barnes"

A lot of information featured on this site is found on pdTV.

Most information is shown using a simple slideshow format.

Clicking on the channels will take you a dedicated pdTV page.

More options may be found on these pages, which open up more details about the selected topics.

Some channels may also feature video footage.

Coming Soon...

The Next (((pd))) Event is...

It was really good to see such a massive crowd loads of newbies and that huge line of cars waiting to be tested

Then there was the guys that turned up from far distances and endured accidents and flat tyres just so they could get tested in a dirty, dusty pit area - That`s dedication for the cause of BOOMING! Cheers guys

As usual I didn`t get to listen to any installs. The closest I got was when videoing Drews set up with Big Wayne and that sounded really nice and loud too

Jazz 152 should change his name to Jazz 158 soon - a seriously loud system. Beautifully built - Deceptively Dangerous. You wouldn`t think just 4x 15" subs would be so head poundingly brutal. Again only .3dB away from being the U.K.`s Loudest ever (((pd))) system.

Click on the Logos to see more photos and the scores from this event.

Sunday 30th October
FREE SOUND OFF!!

(((pd))) end of season cool down event.