M30D 2-Channel Power Amplifier

Like all M Series models, the M30D is optimized for 4?, and with its output power ideal for small to medium sized sound systems where e.g. no more than two 8Ohm loads are connected in parallel to an amplifier channel: Why overpaying for amplifiers capable of driving 2Ohm loads?
Alternatively, the M30D can drive constant voltage lines directly where multiple loudspeakers are required, but only few different signals.
Maximum efficiency warrants minimum current draw, heat dissipation and ...