You can sometimes improve the efficiency of a multi way speaker system but only if you use multi amplifiers and remove any padding. For instance, tweeters are often padded down about 3 dB or more to match mids. To do this they use resistors which generate heat from the lost signal.
Remove the resistors, use a line level volume control, and voila, no more wasted heat.
The other way to improve output is to use boundary reinforcement. That is, push the speakers as close to as many walls as you can.
Remove the resistors, use a line level volume control, and voila, no more wasted heat.
The other way to improve output is to use boundary reinforcement. That is, push the speakers as close to as many walls as you can.