ZLX-G2 loudspeakers are offered in 8, 12, and 15-inch woofer sizes. Building on the tried and tested ZLX series, ZLX-G2 loudspeakers feature an improved angled cabinet design allowing for a 55-degree monitor angle. 12 and 15-inch models additionally include a “kickback” 25-degree monitor angle. ZLX-G2 loudspeakers offer the best-in-class acoustic output. Electro-Voice patented SST baffle design ensures improved bass, small size, and even coverage across all frequencies. ZLX-12-G2 uses industry standard NL4 connections. The two NL4 connectors are in parallel and pass through all pins. Passive Unpowered Loudspeaker Requires Power Amplifier!