Reply to thread

Message

<blockquote data-quote="hispls" data-source="post: 7375609" data-attributes="member: 614752">An honest x-max is how far it can move one way with 80% of bl.&nbsp;&nbsp; How many companies are honest, who knows?&nbsp; JL probably is, Fi, Soundsolutions, etc. probably are.&nbsp; Companies that rate their amps at &quot;peak&quot; (hit by lightning) power probably would use peak to peak number.&nbsp;&nbsp; x-mech is how far it will travel one way before bottoming out the coil or the spiders slapping the basket, or the coil jumping out of the gap or some other mechanical limit.I wouldn&#039;t let 5mm be a deal breaker when buying a woofer.&nbsp; Really you need to consider your application.&nbsp;&nbsp; Usually higher x-max comes at the cost of a longer (heavier/less efficient) coil.&nbsp; In the case of some of the super x-max linear technologies, the exotic coils are really very inefficient compared to other drivers except at high excursion very low frequencies.</blockquote>

[QUOTE="hispls, post: 7375609, member: 614752"] An honest x-max is how far it can move one way with 80% of bl. How many companies are honest, who knows? JL probably is, Fi, Soundsolutions, etc. probably are. Companies that rate their amps at "peak" (hit by lightning) power probably would use peak to peak number. x-mech is how far it will travel one way before bottoming out the coil or the spiders slapping the basket, or the coil jumping out of the gap or some other mechanical limit. I wouldn't let 5mm be a deal breaker when buying a woofer. Really you need to consider your application. Usually higher x-max comes at the cost of a longer (heavier/less efficient) coil. In the case of some of the super x-max linear technologies, the exotic coils are really very inefficient compared to other drivers except at high excursion very low frequencies. [/QUOTE]

Verification