Which setup would be louder?

[OoBALLERoO 10+ year member]

Two boston acoustic pro60's in the front getting about 275 watts rms to each speaker..or two Crystal Mobile Sounds SSC6 in the front and two more in the rear getting about 150 rms to each speaker?? i know most would say just to get a front stage but i'm more concerned on what would be louder. here the link for the Crystal Mobile Sounds SSC6 http://www.infinitecaraudio.com/cgi-bin/icastore.cgi?user_action=detail&catalogno=SSCS6

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[Gary S 10+ year member]

I would put one set of the crystals in the front on the whole 275 watts... they have better than 4.8mm xmax ... I don't think the Boston's have that much throw. So, the Crystals should handle the power and have more midbass potential.

If you must know, doubling the amount of components can be louder, depending on the car/mounting locations... but I would not do that. If you are lucky, it will be 3 db louder... but it won't sound as good as just the front set with double the power.