- Description Buy JBL GTO939 6X9″ 600W 3-Way Loudspeaker (USED) online from PCTRUST Computer Sales & Service in Guelph, Ontario. In-store pick-up only. SKU: GTO939 Categories: All Products, Audio TV & Home Theatre, Automotive Electronics & Accessories, Home Audio, Theatre & Accessories, JBL, Speakers & Subwoofers, Used Tags: car, JBL, speaker, used
