Zach.... I started out with a 100 wpc denon amp on these things... Then I went to a Halfer P-500. Then...... I was introduced to this site. I started with pl 400 that blew the Hafler away... SO SO Sweet ! Then Lee built me a 700b...... Trust me man.... You never heard nutton like the difference that 700 will make in those speakers !!!! Those ribbon tweets will jump out and slap ya in the face... The only problem I got with the 700 is getting my sub to keep up !!!!! lol..