inputs.text: low loud efficient - havent seen many reiviews prior purchasing figured would throw 2 cents first ive owned type rs sundown sa soundqubed hds ran alpine mrxm110 currently got tired single sub setup went limb got never trie skar always wanted chose fit application could give decent amount space 2003 dodge ram single cab around 26 cubes tuned 35ish get love lows upper bass region well way efficient single setups previously mentioned sound quality also great well arent even close stressing wattage im giving arent built solid sa hds theyre also lower line skars available subwoofers louder lower single sub setups wouldnt compare sa hds paired overall im extremely pleased went would buy low loud efficient