I power our mains with a Crown XLS802. For small gigs, we run it at stereo at 8 ohms which is 500W per channel. Our speakers can handle much more than that. Here is the stats on the amp. http://www.crownaudio.com/amp_htm/xls.htm It only shows bridged mode running at 8 ohms, and has bridged 4 ohms as blank. If we daisy chain our 2 mains in bridges mode, it would put 800 into each speaker, but since they do not show 4 ohm bridged stats, is this bad for the amp or speakers? Similar question to what we power our Subs with. http://www.crownaudio.com/amp_htm/xti.htm I use a crown xti2000 in the bridged sub mode. Since that puts it at 4 ohms, because of the 2 8 ohm subs being daisy chained, that would be 1000w into each sub, correct? I'm pretty new into live sound, but I'm trying to learn quick Thanks!