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"
Earthquake Sounds U.K.
Seismic activity in Kent? Blame these guys!

Based in Rainham, Kent.

Bringing us a huge range of versatile subwoofers to suit our bass needs.

The whole range sounds beautifully smooth, clear and loud as you like.

The Tremor and dB Xi being particularly good examples of a range of subwoofers that is reasonably priced coupled with a superb subsonic frequency performance.

These things drop low.
Earthquake Subwoofers are available right now.  Contact Joe (Earthquake U.K.) on 01634 263 786
Alternatively you can contact DA Earthquaker (Joe) on www.talkaudio.co.uk
Brand "X" Subwoofers
Digital Designs Subwoofers
JBL GT5 Subwoofers
Ascendant Audio Subwoofers
DC Sounds Subwoofers
HCCA Subwoofers
Copyright © 2011 by "Marcos H Barnes"