http://audioforum.termpro.com/topic/20/13513.html
Read that thread. Their 7kw amp is only .9 up from a XX Goliath. If I was a betting man I would bet the new XXV Goliath is more powerful than their 7kw just due to the new design and it being much more efficient. If your looking for a amp that powerufl check out the XXVSamson. Here is the power test done with the new line of XXV line of amps.
Mono amps (......1-Ohm.........)
Model 14.4v 16v 17.8v
XXVThor 3000 4000 5000
XXVCyclops 4000 5100 6300
XXXGoliath 5000 6300 7600
XXVSampson 8000 8900 10,200
XXVMaxximus
2 Channel amps
XXVColossus
14v: 2 x 1600 @ 1-Ohm / 1 x 3200 @ 2-Ohms
16v: 2 x 1900 @ 1-Ohm / 1 x 3800 @ 2-Ohms
XXMaxximus
14v: 2 x 5000 @ 1-Ohm / 1 x 10,000 @ 2-Ohms
16v: 2 x 6300 @ 1-Ohm / 1 x 12,600 @ 2-Ohms
17.8v: 2 x 7600 @ 1-Ohm/1 x 15,200 @ 2-Ohms