Have been running my Aguilar DB680 pre into the power section of an older Trace Elliott AH500 Series Six head. Decided to try and lighten the load a bit and got a Crown XLS1500. Class D light power amp. Long and short was very underwhelmed w/ the sound of the Crown compared to the power of the Trace. Was lacking the fundamental of the Trace. Guess you cant have you're cake and eat it too. Trying to find a power amp that will deliver the oomph of the power section from the Trace but not be more than 25-30 lbs. Any thoughts?? LOVE the DB680 and would like to find something thats going to make it shine. Resigning myself to a heavier (but not too heavy) power amp. Thanks guys. And please dont flame me. Know there are many threads asking about a good power amp. Have looked at many already. But went off of favorable reviews regarding the Crown when I purchased it. Thanks!