Instruct: Classify Amazon reviews into positive or negative sentiment
Query: very good if you know how to hook them up

i bought two of these have a spx pro audio box like in one of the pics with a pyramid 1000w mosfet amp had them wired a 1 ohm and was not happy the amp shut off thought i got bad subs then i wired them at 4 ohm wired in parrelle or however you spell it they sound grate well worth the money they beat harder then my friends 15 inch kicker comps they have a purple color to them but the look and sound grate