I have the 923 and a pair of 723's for mids. I believe the 1023 is a 600 watt amp rms. I like them them because these things are clean! Like 0.015% THD at 4 ohms. And did I mention thay are regulated as well.//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif