Reply to thread

Message

<blockquote data-quote="Rich B" data-source="post: 2389461" data-attributes="member: 571023">IsobaricBy combining two woofers to act as one, either by mounting them gasket to gasket, or gasket to magnet or magnet to magnet, we create an isobaric system. An isobaric system acts as one speaker, but requires an enclosure volume that is half of what one singular driver would take. The output capability of this system is limited to what a single speaker would be in a cabinet of twice the size of the isobaric system. The reason that an isobaric system requires only half of the enclosure volume is that the Vas is half of the single driver. This is due to having two suspensions on the same diaphragm.The halving of enclosure size does come at a cost. The isobaric system is 3dB less efficient than that of a single driver in an enclosure of twice the size. This means that to get the same output as one driver, you must double the applied power. Providing that you have enough power, two isobaric systems, which would take up the same amount of space as one single woofer, would have 3dB more output due to the increase in cone area. This can be used to your advantage when standard enclosures will not give enough SPL, by quadrupling the input power and quadrupling the number of drivers, you can attain 6dB more output.<a href="http://www.xtant.com/html/techSupport/enclosures.cfm#isobaric" target="_blank">http://www.xtant.com/html/techSupport/enclosures.cfm#isobaric</a>Theres a drawing of what an isobaric design looks like at that link too.</blockquote>

[QUOTE="Rich B, post: 2389461, member: 571023"] Isobaric By combining two woofers to act as one, either by mounting them gasket to gasket, or gasket to magnet or magnet to magnet, we create an isobaric system. An isobaric system acts as one speaker, but requires an enclosure volume that is half of what one singular driver would take. The output capability of this system is limited to what a single speaker would be in a cabinet of twice the size of the isobaric system. The reason that an isobaric system requires only half of the enclosure volume is that the Vas is half of the single driver. This is due to having two suspensions on the same diaphragm. The halving of enclosure size does come at a cost. The isobaric system is 3dB less efficient than that of a single driver in an enclosure of twice the size. This means that to get the same output as one driver, you must double the applied power. Providing that you have enough power, two isobaric systems, which would take up the same amount of space as one single woofer, would have 3dB more output due to the increase in cone area. This can be used to your advantage when standard enclosures will not give enough SPL, by quadrupling the input power and quadrupling the number of drivers, you can attain 6dB more output. [URL="http://www.xtant.com/html/techSupport/enclosures.cfm#isobaric"]http://www.xtant.com/html/techSupport/enclosures.cfm#isobaric[/URL] Theres a drawing of what an isobaric design looks like at that link too. [/QUOTE]

Verification