What you are looking at is a PERFECT WORKING Earthquake of San Francisco Old School Power 2 channel USA MADE amplifier! The REAL Earthquake amps from the 90's are getting harder and harder to find! Get it while you can!!! Specs below, but I understand they are VERY Under rated… Thanks for looking and GOOD LUCK!!!! I am a 15 year Ebayer with over 1800 positive feedback,,, so BUY WITH CONFIDENCE!!!!