JBL GX1200 for boombox bassdrop duty - which of these two cabs would you pick ?

[freddi]

between JBL's suggested 50 liter (includes port and driver displacements) and a 30 liter closed box with 850uF series capacitor.
Both sim equal at 41.2Hz - which is where I figure a lot of bass drops hit for "bottom" - I'll probbly use a 6.5" coming in at ~200Hz