- Description Buy Ultralinear ULD610 Car Subwoofer (USED) online from PCTRUST Computer Sales & Service in Guelph, Ontario. In-store pick-up only. SKU: ULD610 Categories: All Products, Audio TV & Home Theatre, Automotive Electronics & Accessories, Home Audio, Theatre & Accessories, Speakers & Subwoofers, Used Tags: car, in-store pick-up only, speaker, subwoofer, Ultra-Linear, used
