JBL Northridge E10 2-Way 4-Inch Bookshelf Speakers, Pair (Cherry) (Discontinued by Manufacturer) Pair of magnetically shielded 2-way, 4-inch bookshelf speakers 4-inch PolyPlas woofers and 0.75-inch titanium-laminated dome tweeters Straight-Line Signal Path crossover network divides signal with minimal processing 50 watts continuous and 200 watts peak power handling; 100 watts max amp power 5-way binding posts; 10.12 x 10 x 4.25 inches (W x H x D) each; 5-year warranty