ST-12 Type:2 way speakers Frequency:80-19KHzPower:150W/RMS 600W/PEAKWoofer:12″V.C 2″KSV 8 ohmMagnet:40ozTweeter:1″KSV 8 ohmSPL:95dB(2.83V/M)ST-15Type:2 way speakersFrequency:65-19KHzPower:175W/RMS 700W/PEAKWoofer:15″V.C 2″KSV 8 ohmMagnet:40ozTweeter:1″KSV 8 ohmSPL:97dB(2.83V/M)carpet pa speaker box