inputs.text: systehem never sounded good - box must buy want good sounding loud clean bass alpine subs 2 alpine type rs 2010 series also purchased amazon wired 1 ohm hifonics brutus 12001d also bought amazon let tell amazing never buy basic ported sealed box ever love music loud booming box perfect match type rs seller contacted correcting shipping address big thumbs 5 stars great service box came already happy structure solidness put everything tuned stereo amp woofers didnt even flex much used still gave lot bass described product details happy purchase trust bass head like alpine subs box labyrinth way go 3 boxes stored closet put shame wish knew box defiantly purchase future recommend fellow bass loversps jls kickers etc etc box like thehem purchase slap woofers not sorry