I had an ARC tube amp on my 802D's and it just couldn't provide the needed current. Went to a Wyred4sound Class D amp and it made a huge difference... lots of power (current). Look at their 500W ICE modules, will do the job. I'm actually bi-amping with a 250W & 500W per speaker. Driving the amp with an ARC LS-26 which is a great combo.
