Mackie SRM450V2 | 12-inch 2-way Compact Powered SR Loudspeaker 2-way bi-amplified, optimized active loudspeaker system High-output precision titanium compression driver Neodymium long-throw low frequency transducer with 3-inch voice coil Servo Feedback controlled woofer for tight low-end punch 300W class-D, Fast Recovery LF amp / 100W HF amp