[Radio Wrangler]

Most loudspeakers are extremely inefficient. A few are merely very inefficient, and the rest are amazingly inefficient.

Perhaps the easiest illustration of this is that a single trombone going flat out produces around half a watt of acoustic power.

If all the power of your amplifier got turned into sound, we'd have to arrange helicopter drops of food and tents to the survivors in Lincolnshire.

David