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"
Copyright © 2011 by "Marcos H Barnes" 
The U.K.s Longest running and respected SPL competition format.

Think you`re LOUD!  Think again.

PURE SPL is the game - Playing the LOUDEST BASS frequency that your sound system can possibly reproduce.

Everything from streetbassing cars to SPL specific systems attend the dB drag circuit.

All events are very busy and everyone, as in all the other formats are friendly and willing to offer help in order for you to get LOUDER.

Another dB drag format - BASS RACE is usually run at the same time as the dB drag SPL - so you get two formats under one event !