Studiomaster GX15MA Active Wedge Speaker. The strong trapezoidal shaped wooden cabinets are black carpet covered to give a stylish, durable finish while keeping weight to a minimum. All full range cabinets contain a 35mm speaker pole socket for stand mounting and all models have tough slotted handles, making transportation easy. These passive cabinets have a pair of industry standard 4 pole speaker connectors for reliable operation and the flexibility to connect to additional cabinets. Program Output Power: 170W. With Extension Speaker: 250W. Frequency Response: 40Hz – 18kHz. LF Driver: 15? Cast chassis. HF Driver: 1.35? Driver. Coverage: 90 x 60 degree. EQ: Hi 10kHz, Mid 2.5kHz, Lo 100Hz. Mic Input: Balanced XLR + Jack. Line Input: Balanced XLR, Unbalanced RCA Phono. Extension Speaker Output: 1 x 4 pole industry standard socket. Power Requirements: 230V model Or 115V model, +-10% 50/60Hz. 680 x 470 x 350 mm.