Meyer Sound's HMS-10 is a full-range two-way loudspeaker optimized for surround channels in theatres and dub stages. Designed to complement Acheron screen channel loudspeakers for a complete EXP system HMS-10 maintains a wide dynamic range, full fidelity, and clarity during the most demanding of digital soundtracks.Boasting a wide frequency range of 55 Hz to 18 kHz and a maximum peak SPL of 126 dB with very low distortion, the HMS-10 ensures that the full intensity and nuance of cinema surround channels reach each listener without compromise.The HMS-10's transducers include a 10-inch low-frequency long excursion cone driver and a 2-inch high-frequency compression driver on a wide, symmetrical constant-directivity 80-degree horn that delivers exceptional coverage.The proprietary drivers - designed and manufactured at Meyer Sound's headquarters in Berkeley, California - are powered by two channels of onboard amplification that include an active crossover, driver protection, and frequency and phase response correction circuitry.Balanced audio and DC power are received by the HMS-10 from a single 5-pin Phoenix™ connector on its top panel.Powering the unit from an external source eliminates the need for wiring conduits while still preserving the advantages of self-powered loudspeaker systems.The HMS-10's amplifier and signal-processing circuits are designed to store DC power and tolerate voltage drops, thereby accommodating light-gauge cables and lengthy cable runs.A rack mount multi-channel 48 V DC MPS-488HP external power supply is available for conveniently distributing both balanced audio and DC power to up to eight HMS-10 loudspeakers.The use of composite multiconductor cables allows a single cable to carry both audio and DC power to each surround loudspeaker.Meyer Sound's industry standard self-powered loudspeaker technology not only delivers unparalleled and consistent audio fidelity but also simplifies installation, whether designing a new room from scratch or adding surround channels to an existing setup.The HMS-10's compact size, textured finish, and black cloth grille blend smartly with any theater decor.The HMS-10 comes standard with a flush mount bracket and an optional adjustable wall mount bracket is available.