Speakers subwoofers dj band karaoke !

I Have 2 Wharfedale EVP-X18 Subwoofers. Good Condition. 1 Works 1 Does NOT Work. Maybe A Simple Fix Or New Speaker Needed. These Are 380 New EACH And Sound Fantastic When Paired With A Powerful Amp And Suitable Tops. They Really Kick Like A Donkey And Rienforce Any Sound installation.