Any sirius funk, jazz or r&b players using the orange isobaric cabs? If so how do they sound, feel, react and thump?
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If the volume/output of a cabinet depends on the total surface area of the speakers then surely these isobaric cabs only have an effective surface area of the front speakers and the speakers behind are not pushing air out the front of the cab ??

The isobaric cabs are a way of getting the same low end from a smaller box BUT the volume output of their 410 is equivalent to a 210, the 212 to a 112, etc. Lots of money for an exhumed concept. If you want to pay top dollar for something unique and small that sounds good but produces much less volume per dollar than the competition these are your boxes. The OBC410 is faaaaaaaaar louder than the isobaric version, just larger and heavier and cheaper.
Here is a cut-a-way of the SP cabs. The back speaker pushes out the port.
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I don't really know why some of you guys on here say that the SP410 is not as loud as other 410's..... ya right![]()