Whats the deal with subs in an Isobarik configuration? I havn't yet seen anybody use them at all. I know you can get away with using a box half the size, in lieu of doubling the power going to the subs. But is there any spl gains? any SQ gains....what gives?

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<img src="http://www.geocities.com/ysr80cc/banner.jpg" alt=" - " /> <br /><br />Kicker 500SI, Two 2.3KW RMS Earthquake D2's <br />DD 9515 (SPL/SQ BEAST!!!!!)<br />Full DynAudio/Scan-speak full-range set-up... Panasonic Ghost face deck

An isobaric pair of woofers will use approximately half the volume of a single driver. So this allows you to halve your box size or get deeper response from a given box size.

They used to be popular 10+years ago when a 10 wanted 2cuft to work really well. Now that you can fit 3 10s into 2cuft the isobaric design isn't so attractive [img]graemlins/dunno.gif[/img]

you dont gain output but what you do gain is 2 magnets, 2 suspensions etc worknig together to control excursion etc and keep the woofers more linear. the best sounding bass ive ever heard in a vehicle was 4 10" woofers in isobarik. i am a big fan of iso but can be impractical with deep woofers and you get only 1 woofers worth of output if thats a big thing for you iso may not be the best bet