I heard people talking about it and stuff

What is the difference between all these classes?

And why is SQ gone?

My friend told me, his system is Sound Queued.

Does that mean? its for SQ? haha.. not sure [img]smile.gif[/img]

Yes Im a newbie when it comes to audio system, all I can hear is what sounds good and what doesnt [img]smile.gif[/img]

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SQ is Sound Quality
and
SPL is Sound Pressure Level

basically SPL = making your system sound LOUD
SQ = making your system sound clear

SQL, [img]graemlins/headbang.gif[/img] loud & clear,my kinda setup

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Atomic + E Audio = Loud
153.7 Certified
'03 Canadian dBDrag Points Leader
'07 Canadian Street B SPL Leader