[I got a box design for 2 12 sa what you think?]

Would you suggest adjusting the tune from 35, to the car say larger car drop a couple hertz? And vice versa...

[I got a box design for 2 12 sa what you think?]

Would you suggest adjusting the tune from 35, to the car say larger car drop a couple hertz? And vice versa...

[SA 12 s box design post your trial & errors]

custom 3.8 net cubes with 2x 2.5 inch round ports at 5 inches long with to SA 12's rear baffle lined with fleece.Decent sq but prefab Q slot port sounded better WTF?