All these new amplifiers are Class-D amplification with massive analog power supplies and they are all north of 90% efficient at full power. This efficiency is an important benefit to our amps. A typical Class-AB design is around 50% efficient which means that ½ of the output from the transformer is wasted off in heat which is quite limiting to your overall output with all channels driven (given a single power cord on a regular 15amp circuit). The maximum you can extract from a typical wall plug is 1800 watts. Given a reasonably efficient and absolutely massive power supply you can end up with somewhere around 1650 watts available to the amplifiers. So at north of 90% efficiency you can easily achieve 1500 watts of total output (hence our 1500 series lab name). But at 50% efficiency you are limited to around 825 watts. That is a massive difference in a multi-channel amplifier. Below is a little chart that shows how the output power works for each of our amplifier series:
Ian, or Andrew, what is the rating of the power supply?
I also find it interesting that the rating for a typical wall outlet was included; this is something that i think often gets over looked.. With the 1500, would the recommendation be to have a dedicated breaker on the outlet that the 1500 would be plugged into? It might be prudent in older houses, where there are more outlets on fewer breakers..