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<blockquote data-quote="hispls" data-source="post: 8730704" data-attributes="member: 614752">Nice.&nbsp; Those are really easy to get loud and will want to peak around 42-43hz.&nbsp;&nbsp; A friend of mine was doing some great numbers out of one of those Volvo wagons in amateur class in our regional competition circuit several years ago.Just making sure you know what you&#039;re getting into.&nbsp; A very common newb mistake is underestimating how much air space you need to make subwoofers function properly.&nbsp;&nbsp; The other thing I will mention is to be certain you make the box airtight at the seems and very rigid.&nbsp; Use multiple layers of wood if you can and/or use plenty of bracing to keep the box&#039;s sides from flexing.&nbsp; Also be sure you have a plan to secure it in place in the vehicle.&nbsp; Not only will that gain some output but it will prevent the box from moving and crushing you if you ever get in an accident.&nbsp; Please post a build log thread here when you get going and report back your results.</blockquote>

[QUOTE="hispls, post: 8730704, member: 614752"] Nice. Those are really easy to get loud and will want to peak around 42-43hz. A friend of mine was doing some great numbers out of one of those Volvo wagons in amateur class in our regional competition circuit several years ago. Just making sure you know what you're getting into. A very common newb mistake is underestimating how much air space you need to make subwoofers function properly. The other thing I will mention is to be certain you make the box airtight at the seems and very rigid. Use multiple layers of wood if you can and/or use plenty of bracing to keep the box's sides from flexing. Also be sure you have a plan to secure it in place in the vehicle. Not only will that gain some output but it will prevent the box from moving and crushing you if you ever get in an accident. Please post a build log thread here when you get going and report back your results. [/QUOTE]

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