The MM-10XP model is powered by an external 48 V DC power supply, eliminating the need for wiring conduits while still preserving the advantages of self-powered loudspeaker systems. The unit's onboard amplifier and signal-processing circuits were designed to store DC power and tolerate voltage drops, thereby accommodating light-gauge cables and lengthy cable runs. The MM-10XP is available with either a Phoenix 5-pin male or sealed SwitchCraft® EN3™ male connector for receiving balanced audio and DC power. The EN3 connector is ideal for outdoor, all-weather use.

MM-10XPs require an MPS-488HP external power supply. The single-space 19-inch rack unit receives balanced audio from its XLR female inputs and routes the audio, along with 48 V of DC power, to its channel outputs. The channel outputs - equipped with either Phoenix 5-pin male connectors or EN3 5-pin female connectors - can deliver DC power to up to eight MM-10XP subwoofers at cable lengths of up to 150 feet with just 1 dB of loss in peak SPL using 18 AWG wire. The use of composite multiconductor cables (such as Belden 1502) allows a single cable to carry both DC power and balanced audio to the MM-10XPs. Longer cable runs are possible for moderate applications that don't drive the subwoofers to maximum output, or for installations with heavier wire gauges.