I bought a cheap one once and an amp as small as 100w blew the side off of it this box feels extremely sturdy and with 300w rms the walls dont budge for a little inexpensive prefab subwoofer box i think this is a cannot be beat deal

Otherwise i would recommend this box to anyone looking for an inexpensive ported prefab box

2016 honda accordrockford fosgate p3d4 2ohmsrockford fosgate r500 x1d amp 32v outputthe low pass is set to 85hzkicker line output converter into a harrison labs high pass filter set at 25hzhighly recommend a filterpolyester batting folded and stapled to the inside wallsthis subp3d4 is a little oversized other subs seem to drop right in buti had to shave about 18 all the way around to make it seat all the way down my sub is 4x as loud with in box than my old one

The carpet is high quality only thing is it left a strong funky smell in my car for the first week or two but it goes away would recommend i have a mofo 122x in this box and it slams hard got it running at 1ohm on a power acoustik reaper r14000d mono amp box does have a funky smell but after breaking sub in it kinda went away after a few days