G5 Infinium : excellent sound from this head amp

I use this head amp to drive a preamp\power amp combo to 2 regular PA speakers. The power output from this head amp is really impressive. Selecting the biggest cabinet output on the back will really give you a lot of volume. I use a separate pedal for distortion, the included overdrive effect is not that 'metal' for me. So I set this headamp to 'clean'. The actual sound signature is very appealing, it is rather warm and full of low end bass, a sound I really enjoy. I know the tube sound because I use tubes for my hifi setup also. For me metal guitars sound best with a tube sound. The headphones output is great. The overall sound of this headamp is clean, powerful and addictive.