This nice Black & Red, 4 - ohm, 2 - Speaker "Triple X" 10" subwoofer with matching model GFX - 1000, 2 - channel amplifier combination, is a great addition to just about any car audio system! The cloth-covered vented box measures 27 1/2" wide x 15" (on the bottom), x 10" (on the top) (Deep) x 13" (tall) and is accompanied by its 1000 watts, 20 Hz.(ohm) 20 KHz, 90 dB signal/noise ratio and variable bass boost @ 45 Hz: 0 ohms 18 dB. amplifier. Works great and comparatively rated to like items online ($49.99 for like Amp(Ebay.com) & ($75.00 for like subwoofer (recycler.com), what I'm asking for this set is almost a steal! Don't let it slip by you! If interested in this or any other items I may have to offer, We do also accept "PayPal", can Gift wrap and ship or deliver upon request (for an additional fee), so please feel free to look me up under "Joyla211" or "Delc420" on your favorite search engine, or (through CL (Detroit), listed under "items for sale" or "All Categories" respectively), via email or directly @ 734-286-5160. Thank You! Joyla .