The SPR-M70 speakers are built around an efficient titanium dome tweeter and 7" mid bass that provide clear, loud sound output in open environments. Centrex grilles and strong, non-resonant, high temperature ABS frames remain durable. These speakers use Santoprene surrounds that offer high quality frequency response performance. Tweeters have a swivel mount that allows you to direct the highs exactly where you want them. 75 watts RMS/210 watts peak power handling. 2-6/32" tweeter mounting diameter. 6-13/32" woofer mounting diameter.