BZRK Audio's Rolling Studio tweeters bring high-end sound to your car or truck. These budget SQ tweeters offer a smooth, high-quality sound without breaking the bank. Many budget tweeters produce harsh sound that is irritating. Not the RS-T150s! These tweeters produce highs that are smooth as silk. You've really got to hear the sound quality to believe it! This best-in-class sound quality has many people calling the RS-T150 the best value in tweeters on the market today! BZRK's RS-T150 sound quality focused tweeters are low cost and high quality! They feature a solid aluminum housing and excellent frequency response. These 1" car tweeters are designed to be flush mounted for a nice clean look once installed. Detailed Product Specs Mounting Type: Flush Speaker Size: 1 Inch Impedance: 4 Ohm Efficiency: 93 db Wide range frequency response: 1.5khz-25Khz Each driver handles 150 watts max / 75 watts RMS for a total of 300 watts max power-handling. Bass blocker capacitors are included.