Opinions on this box design...

[stroupe79]

Just looking for feedback on this box design

5cubes @29hz 65inches of port made of birch ply

Stereo Integrity HT18 on DC 1.2k in a 2005 Jeep Grand Cherokee

I can invert the sub to gain .25cube and lower tuning to 27/28hz if need be

[ChevyBoy95]

Looks alright to me, port being a bit bigger might help, something around 70-80 sq in.

But who knows, looks like it will perform well in its current state.

I would build it how it is and see how it does.

[stroupe79]

thanks for the feedback

Yeah I was trying for a bit wider port but with the space limitations I have building it taller is the only real option, thus making the port taller and it just seems I can't really get the volume and tuning I was aiming for doing that, I am OK with 65inches of port but like you said I would have liked to be around 80 honestly

[Joe X]

Just do some bracing inside, top to bottom (at least) if you don't do a double layer baffle (which would force you to use a second sheet).

[stroupe79]

other than some bracing you think it looks fine Joe?

I was thinking maybe (2)1.5 or 2" dowels top to bottom and a 3rd front to back to brace it up

[Joe X]

On the box other than the bracing it looks fine to me, it will play down to 20Hz without a problem, now being a non car audio sub, materials probably will not like a car environment long term, it may need some extra care like avoiding everyday direct sunlight exposure.

[stroupe79]

I have a vinyl cargo cover that can be pulled over it to cover it and keep it out of the sun...I am also considering putting on darker tint (5%) that would keep out nearly all light as well

thanks for the input Joe