Amazon.com: SoundXtreme 6x9 4-Way 520W Car Stereo Speaker w/ 2X Audiotek 6x9 Car Truck Van Speaker Box : Electronics
BOSS Audio Systems P55.4C Phantom Series 5.25 Inch Car Door Speakers - 300 Watts (per pair), Coaxial, 4 Way, Full Range, 4 Ohms, Sold in Pairs, Bocinas Para Carro
Amazon.com: Pyle-Pro 4 Way DJ Speaker System, 300 Watt Power, 150 RMS, Four 3 Inch Horn Piezo Tweeters, 8 Ohm Impedance, Full Range Audio Reproduction, Black Carpeted Finish : Musical Instruments