Originally posted by Lordathestrings
First, a few basic points

• The relationship between 'loudness' and power is [u]not[/u] linear. To sound twice as loud, you need to drive the speakers with [u]ten times[/u] as much power! That means you will need about 150 Watts driving similar speakers to sound twice as loud as your 15 Watt amp. :eek:
  



• That lovely touch-sensitive distortion we all know and love, only happens when the output power section of a tube amplifier is pushed hard enough to saturate. That usually means a 15 Watt amp is very loud. A 100 Watt amp becomes a threat to your ears!