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It's a Dayton RSS390HO-4. It'll be powered by an SVS Sledge STA-1000D with integrated DSP. The subwoofer came new, but second hand at a decent deal. The plate amp also nearly new, got at a deal because the knob to control the DSP, including the volume is broken. It's a rotary encoder with pushbutton, replacement part costs all of $3.50, should arrive next week.
I'm tired of MDF so this one is built from plywood. Not fancy baltic birch stuff though, just one side good pine and fir plywood. I had a quarter panel of pine to use up so the rear panel and port were cut from it, and the rest is fir plywood so all the faces you will see will be the same stuff. Nothing real fancy for this build, just quick and easy and make a lot of bass.
Haven't decided yet if the cabinet will be stained dark espresso or just painted black. You may notice the dado around the top. The top will be my leftover acacia counter top board that I used for this build , will be installed with a gasket and table top clamps:
The big 15" driver needs a hefty countersink to flush mount, so I stuck some blocks on the back side of the baffle to give the screws some meat to hold on to.
Probably a few more braces to be added, as well as round-over of the port and fill any exposed voids, then sand and finish. More to come...