100 Watts RMS Power Handling/ 300 Watts Peak Power Handling/ Air Core Coils/ Polypropylene Capacitors/ Wire-Wound Resistors/ L-Pad Tweeter Adjustment Circuit/ Tweeter Adjustment Scale Marked In 1/4 dB Increments/ Cast Aluminum Chassis/ Clear Component Viewing Window/ 2.5 kHz Crossover Frequency/ 4 Ohm Nominal Impedance/ Specifically Designed For Use With The GB10 And GB60/ Grey Finish