This is a midrange, tweeter and crossover combination that uses nickel-plated, spring-loaded terminals. 6 inch woofers and 1 inch tweeters output 180 watts of power at peak, with a frequency response range of 50 hz to 21 khz, which offers strong representation of the mid to upper range but may require the addition of a subwoofer for some. Tweeter attenuation is selectable in 1.5 db steps to +3 or +6, allowing for flexible mounting of the tweeters wherever it is convenient.