Features & Benefits


Exceptional fidelity and extended high- frequency performance

Constant-Q horn yields uniform response throughout coverage area

Extraordinarily flat amplitude and phase response for tonal accuracy

Seamless integration with Acheronscreen channel loudspeakers



Cinema Surround

Re-recording stages

Screening rooms

Meyer Sound's HMS-10 loudspeaker, with IntelligentDC technology, is a full-range, two-way loudspeaker optimized for surround channels in cinemas, theatres, and re-recording changes. The self-powered HMS-10 maintains a wide dynamic range, full fidelity, and complete clarity during the most demanding of digital soundtracks. As part of the EXP line of cinema products, the HMS-10 is optimized for use with other EXP loudspeakers, including the Acheron® screen channel loudspeakers. Boasting a wide frequency range of 55 Hz to 18 kHz and a maximum peak SPL of 126 dB at 1 meter 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 diaphragm high-frequency compression driver on a 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.

With IntelligentDC technology, balanced audio and power are received by the HMS-10 from a PhoenixTM 5-pin male 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 store DC power and tolerate voltage drops, thereby accommodating light-gauge cables and lengthy cable runs.

HMS-10 loudspeakers require an external MPS-488HP* IntelligentDC power supply. The single-space 19-inch rack unit receives balanced audio from its XLR female inputs and routes the audio, along with DC power, to its channel outputs. The channel outputs, which are available as Phoenix 5-pin male connectors, deliver DC power to up to eight HMS-10 loudspeakers at cable lengths 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 or equivalent) allows a single cable to carry both DC power and balanced audio to the HMS-10. Longer cable runs are possible for moderate applications that don't drive the loudspeakers to maximum output, or for installations using heavier wire gauges.

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 fixed bracket; an optional adjustable bracket is also available for wall mounting the HMS-10 with downtilt or uptilt.

* The external MPS-488HP IntelligentDC power supply replaces the MPS-488 model, which was originally designed for use with MM-4XP loudspeakers. The MPS-488 is also compatible with HMS-10 loudspeakers and can drive up to four units.

Meyer Sound design services is available to review cinema system designs to ensure that they meet SMPTE standards, as well as review specific designs created for cinema sound formats such as Atmos or Auro 3D.

To submit your design for review or for any questions about EXP cinema system designs, contact exp@meyersound.com.

Dimensional Drawings:

Fixed OmniMount

Pivot OmniMount

thx certified


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