TSW-718 vs USB Sub

if you need dual 18" in one box so go for USB big mach

yup big mach the output is bigger. on my USB i used celestion driver.

i dont know about BMS coz i dont have that driver but the eminence driver i heard that with the usb it sound good then...

i'd possibly seek a few more opinions on this first, usb was designed as a kick bin to compliment lab horn subwoofers, tsw718 is an all round bass bin. if you are not planning on using these above subs then i would think a little longer about the tse218/tsw718 style cabinets. they're bigger than the usb and go lower correspondingly, an open source equivalent of these (current production) turbosound boxes might be staipers es18bph. i understand people have made these as a double cab and had great success, allegedly they're really not a million miles from funktion one f218s.

i take it you mean loud mig-mach? tsw218 and tsw718 are fairly comparable in terms of out and out spl, tsw218 gets more extension on the bottom end. i've not compared usbs, es18s and turbo bins all in one sitting, but from what i do know the usb is just a bit too small to be a stand alone bass solution, the es18 is far more usable.

it's the word "buy" that lets these ones down for me (not least of all because i have four bph optimised triple spider neodymium pd drivers - turbo ls1812.2 - simply crying out for a new home)... anyway, jacob's in copenhagen, probably not ideally located to get stuff from a uk builder?