I've started a subwoofer project and would like to document it here. My original plan was to build a dual-driver EBS which will house two TC Sounds dB-500 12's. However, I decided to build a practice box before I dive into the huge LLT. This box will house either a single dB-500, or a single Sony Xplod 12 which is my current subwoofer. The Xplod is currently in a 2 cu ft box tuned to about 20 hz. This alignment, while better than a sealed enclosure, leaves much to be desired below and around 20 Hz. The practice box has a volume of about 4.2 ft after subtracting the brace, port, and driver volumes. Two three-inch ports will tune the enclosure to about 18 Hz.
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