Join Date: Jan 2014
Location: Oklahoma City, OK
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That looks really good. Just, FYI, with a 2x15" port there's a chance if you boost the low end much and you play at high volumes, you'll get some port noise. The port is on the smallish size, though bigger than the 4" diameter port on the original VBSS. Flared round ports are less susceptible to port noise though.
With no EQ, only HPF at 15Hz, port air velocity at 15Hz is below 12 m/s which is fine. Once you add any boost at the lower end, that air speed shoots up though. As high as 45 m/s.
If that's something you're worried about, you can look into a bigger port to help keep that from happening.
You could ask those others who have made these cabs if they have any trouble with port noise, I'm not sure if it's an issue or not.
HT setup: Vizio 50" 4K | Xbox & PS3 | Pioneer Elite VSX-94TX | Bose 701 towers (V1) | JBL S Center | Def Tech Reference SuperCube & DIY Nearfield cabinet ported UM18 dual ported PA380 ULF+MBM