Meyer Sound HMS-15AC-TILT-RMS, HMS-15AC-TILT-3, HMS-15-TILT, HMS-15-FIXED User Manual

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OPERATING INSTRUCTIONS

HMS Cinema Surround Loudspeaker (IntelligentDC)

HMS-5, HMS-10, HMS-12, and HMS-15

CINE STUDIO

Keep these important operating instructions.

Check www.meyersound.com for updates.

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The contents of this manual are furnished for informational purposes only, are subject to change without notice, and should not be construed as a commitment by Meyer Sound Laboratories Inc. Meyer Sound assumes no responsibility or liability for any errors or inaccuracies that may appear in this manual. Except as permitted by applicable copyright law, no part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, recording or otherwise, without prior written permission from Meyer Sound.

Compass RMS, RMS, and all alpha-numeric designations for Meyer Sound products and accessories are trademarks of Meyer Sound. Acheron, Compass, Meyer Sound, the Meyer Sound wave logo, and Thinking Sound are registered trademarks of Meyer Sound Laboratories Inc. (Reg. U.S. Pat. & Tm. Off.). All third-party trademarks mentioned herein are the property of their respective trademark holders.

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CONTENTS

Chapter 1: Introduction 5

How to Use This Manual 5 HMS Cinema Surround Loudspeaker 5 MPS-488HP IntelligentDC High-Power Eight-Channel power Supply 8

Chapter 2: HMS Loudspeakers 9

Single-Channel Input Connector (HMS-5, HMS-10, and HMS-12) 9 Dual-Channel Input Connectors (HMS-15) 9 Current Draw and Cable Requirements for HMS Loudspeakers 10 Belden 1502 Cable (or Equivalent) 10 Long Cable Runs with Separate Cable for DC Power and Audio 11 On/Status LED 11 Pad Switch (HMS-10 Only) 12

Chapter 3: Powering HMS Loudspeakers 13

Powering HMS Loudspeakers 13 Configuring the MPS-488HP in Compass RMS 14

Chapter 4: HMS Mounting Options 17

Important Safety Considerations! 17 HMS Mounting Options 17

Chapter 5: Removing HMS Grille Frames 21

Removing HMS-12 and HMS-15 Grille Frames 21

Appendix A: HMS Accessories 23 Appendix B: Assembling Loudspeaker Cables 25 Appendix C: HMS Specifications 27

iii

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CHAPTER 1: INTRODUCTION

HOW TO USE THIS MANUAL

Make sure to read these instructions in their entirety before configuring a Meyer Sound loudspeaker system. In particular, pay close attention to material related to safety issues.

As you read these instructions, you will encounter the following icons for notes, tips, and cautions:

NOTE: A note identifies an important or useful

piece of information relating to the topic under

discussion.

TIP: A tip offers a helpful tip relevant to the topic

at hand.

CAUTION: A caution gives notice that an action

may have serious consequences and could cause harm to equipment or personnel, or could cause delays or other problems.

Information and specifications are subject to change. Updates and supplementary information are available at

www.meyersound.com

Meyer Sound Technical Support is available at:

HMS CINEMA SURROUND LOUDSPEAKER

The HMS cinema surround loudspeaker is optimized for use in cinemas, high-end private theatres, screening rooms, and other surround applications. Designed to complement Meyer Sound’s Acheron™ screen channel loudspeakers, the selfpowered HMS maintains a wide dynamic range, exceptional fidelity, and precise clarity during the most demanding of digital soundtracks. Boasting a wide frequency range and a generous linear peak SPL with very low distortion, the HMS delivers the full intensity and nuance of cinema surround channels to every listener without compromise.

■ Te l: +1 510 486.1166

■ Te l: +1 510 486.0657 (after hours support)

■ Web: www.meyersound.com/support

■ Email: techsupport@meyersound.com

HMS-10 Cinema Surround Loudspeaker (With Grille)

The HMS cinema surround loudspeaker is available in five models: HMS-5, HMS-10, HMS-12, HMS-15, and HMS-15AC, ranging in size, weight, driver size, and power to accommodate a wide range of venues and applications. The proprietary long-excursion cone drivers and diaphragm compression drivers are driven by an onboard amplifier that includes an active crossover, driver protection circuitry, and correction filters for flat phase and frequency response. A constant-directivity horn provides uniform, full-range, consistent coverage.

The HMS-5, HMS-10, HMS-12, and HMS-15 are equipped with IntelligentDC technology and receive DC power and balanced audio from composite Phoenix™ 5-pin connectors. Powering the loudspeakers from an external DC source eliminates the need for AC conduits while preserving the advantages of self-powered systems. IntelligentDC loudspeakers require an MPS-488HP external power supply. The singlespace 19-inch rack unit distributes DC power and balanced audio to up to eight HMS-5, HMS-10, or HMS-12 loudspeak-

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CHAPTER 1: INTRODUCTION

ers, or up to four HMS-15 loudspeakers. Composite multi-

conductor cables, such as Belden

1502 or equivalent, can deliver both DC power and balanced audio to loudspeakers at cable lengths up to 150 feet with just 1 dB of loss in peak SPL using 18 AWG wire. Longer cable runs are possible with heavier gauges. The MPS-488HP is optionally available with an RMS™ remote monitoring system module for monitoring voltage and current draw for its attached loudspeakers from

a Mac

or Windows®-based computer.

The HMS-15AC is an AC-powered version of the HMS-15. Its Intelligent AC™ power supply provides automatic voltage selection, EMI filtering, soft current turn-on, and surge suppression. The HMS-15AC is optionally available with its own onboard RMS remote monitoring system module for comprehensive monitoring of loudspeaker parameters from a Mac or Windows-based computer.

The versatile HMS can be suspended or mounted on walls or ceilings at fixed or adjustable angles with optional half-yoke, U-bracket, or wall-mount brackets, allowing it to be deployed per the requirements of any surround application or immersive cinema format.

Meyer Sound’s industry-leading self-powered technology not only delivers unparalleled and consistent audio fidelity but also simplifies installation, whether designing new rooms from scratch or adding surround channels to existing installations. The HMS cabinet features a black textured finish and an acoustically transparent, detachable, black cloth grille that blend smartly with any theatre decor.

These operating instructions document the following HMS loudspeakers:

■ HMS-5 compact cinema surround loudspeaker

■ HMS-10 cinema surround loudspeaker

HMS-5 Compact Cinema Surround Loudspeaker

The HMS-5 compact cinema loudspeaker includes two 5-inch low-frequency, long-excursion cone drivers, and one 2-inch diaphragm high-frequency compression driver on a symmetrical, constant-directivity 80-degree horn. The loudspeaker is powered by a 3-channel amplifier with an active crossover. The cabinet is constructed of multi-ply hardwood and includes 3.94 inches x 3.94 inches (100 mm x 100 mm) rear attachment points for optional mounting hardware.

HMS-5 Compact Cinema Surround Loudspeaker (Without Grille)

HMS-10 Cinema Surround Loudspeaker

The HMS-10 cinema loudspeaker includes one 10-inch lowfrequency, long-excursion cone driver, and one 2-inch diaphragm high-frequency compression driver on a symmetrical, constant-directivity 80-degree horn. The loudspeaker is powered by a 2-channel amplifier with an active crossover. The cabinet is constructed of multi-ply hardwood and includes 3.94 inches x 3.94 inches (100 mm x 100 mm) rear attachment points for optional mounting hardware.

■ HMS-12 high-power cinema loudspeaker

■ HMS-15 high-power cinema loudspeaker

NOTE: For the sake of brevity, when referring to

these loudspeakers collectively, this document

will refer to them as HMS loudspeakers.

NOTE: The AC-powered HMS-15AC is not doc-

umented in these operating instructions. For information on it, refer to the HMS-15AC Operating Instructions (PN 05.242.005.01).

HMS-10 Cinema Surround Loudspeaker (Without Grille)

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HMS OPERATING INSTRUCTIONS

HMS-12 High-Power Cinema Surround Loudspeaker

The HMS-12 high-power cinema loudspeaker includes one 12-inch low-frequency, long-excursion cone driver, and one 3-inch diaphragm high-frequency compression driver on a symmetrical, constant-directivity 100-degree horn. The loudspeaker is powered by a 2-channel amplifier with an active crossover. The cabinet is constructed of multi-ply hardwood and includes 3.94 inches x 3.94 inches (100 mm x 100 mm) rear attachment points for optional mounting hardware.

HMS-15 High-Power Cinema Surround Loudspeaker

The HMS-15 high-power cinema loudspeaker includes one 15-inch low-frequency, long-excursion cone driver, and one 3-inch diaphragm high-frequency compression driver on a symmetrical, constant-directivity 80-degree horizontal by 50-degree vertical horn. The loudspeaker is powered by a 2channel amplifier with an active crossover. The cabinet is constructed of multi-ply hardwood and includes 5.00 inches x 2.75 inches (127 mm x 70 mm) rear attachment points and side attachment points with 3/8”-16 threads for optional mounting hardware.

HMS-12 High-Power Cinema Surround Loudspeaker (Without Grille)

HMS-15 High-Power Cinema Surround Loudspeaker (Without Grille)

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CHAPTER 1: INTRODUCTION

MPS-488HP INTELLIGENTDC HIGH-POWER EIGHT-CHANNEL POWER SUPPLY

HMS loudspeakers require an external MPS-488HP IntelligentDC power supply. The single-space 19-inch rack unit distributes DC power and balanced audio to up to eight HMS-5, HMS-10, or HMS-12 loudspeakers, or up to four HMS-15 loudspeakers. Composite multiconductor cables, such as Belden 1502 or equivalent, can deliver both DC power and balanced audio to loudspeakers at cable lengths up to 150 feet with just 1 dB of loss in peak SPL using 18 AWG wire. Longer cable runs are possible with heavier gauges. Meyer Sound’s RMS remote monitoring system is optionally available for the MPS-488HP.

MPS-488HP IntelligentDC Power Supply

CAUTION: Disconnect the mains plug or power

off the MPS-488HP before disconnecting its power cord.

TIP: For complete information on using the

MPS-488HP IntelligentDC power supply, refer to the MPS-488HP Operating Instructions (PN 05.205.005.01).

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CHAPTER 2: HMS LOUDSPEAKERS

SINGLE-CHANNEL INPUT CONNECTOR (HMS-5, HMS-10, AND HMS-12)

The HMS-5, HMS-10, and HMS-12 loudspeakers receive DC power and balanced audio from a single Phoenix 5-pin male Input connector. The connector includes two pins for DC power (positive and negative) and three pins for balanced audio (positive, negative, and shield). The pins are clearly labeled on the HMS user panel. To function properly, the HMS-5, HMS-10, and HMS-12 require an MPS-488HP IntelligentDC power supply (one channel output per loudspeaker). The MPS-488HP can power up to eight single-channel HMS loudspeakers.

Single-Channel Input Connector (HMS-5, HMS-10, and HMS-12)

DUAL-CHANNEL INPUT CONNECTORS (HMS-15)

The HMS-15 loudspeaker receives DC power and balanced audio from two Phoenix 5-pin male Input connectors. Each connector includes two pins for DC power (positive and negative) and three pins for balanced audio (positive, negative, and shield). The pins are clearly labeled on the HMS-15 user panel. To function properly, the HMS-15 requires an MPS-488HP IntelligentDC power supply (two channel outputs per loudspeaker). The MPS-488HP can power up to four HMS-15 loudspeakers.

Single-channel HMS loudspeakers ship with one Phoenix 5-pin female cable mount connector for assembling loudspeaker cables. A single composite cable (such as Belden 1502 or equivalent) can be used to route DC power and balanced audio to the HMS loudspeaker. For more information, see “Belden 1502 Cable (or Equivalent)” on page 10 and Appendix B, “Assembling Loudspeaker Cables.”

CAUTION: When wiring HMS loudspeaker

cables, it is extremely important that each pin be wired correctly. Make sure the 48 V DC from the external power supply is wired directly (and only) to the 48 V DC pins on the loudspeaker connector, and that the polarity is observed (negative to negative, positive to positive) to avoid damage to the loudspeaker. In addition, make sure that audio pins are wired correctly; polarity reversals for audio signals affect system performance.

Dual-Channel Input Connectors (HMS-15)

The HMS-15 must be connected to a channel output pair (1–2, 3–4, 5–6, or 7–8) of the MPS-488HP using two separate composite cables. When successfully connected and receiving the required voltage, both Input LEDs for the HMS-15 turn solid green. Identical audio signals can be sent to the two inputs with no additional gain and no adverse effect. Sending different audio signals to the two inputs is not recommended and could cause one signal to be heard in the background.

NOTE: If the HMS-15 does not sense power

from both inputs (both Input LEDs lit) then it will

not output audio.

HMS-15 loudspeakers ship with two Phoenix 5-pin female cable mount connectors for assembling loudspeaker cables. Separate composite cables (such as Belden 1502 or equivalent) must be used to route DC power and balanced audio to the two inputs for the HMS-15 loudspeaker. For more information, see “Belden 1502 Cable (or Equivalent)” on page 10 and Appendix B, “Assembling Loudspeaker Cables.”

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CHAPTER 2: HMS LOUDSPEAKERS

Pin 1 DC power (–)

Pin 2 DC power (+)

Pin 3 Audio shield

Pin 4 Audio signal (–)

Pin 5 Audio signal (+)

CAUTION: When wiring HMS loudspeaker

CURRENT DRAW AND CABLE REQUIREMENTS FOR HMS LOUDSPEAKERS

DC current draw for HMS loudspeakers is dynamic and fluctuates as operating levels change. Cabling between HMS loudspeakers and their external power supply adds resistance and hence causes a voltage drop at the loudspeakers. Because lower DC voltages compromise amplifier performance (peak SPL), and in some cases frequency response, cable resistance should be kept to a minimum.

Cable Lengths and Cable Gauges

Cable lengths up to 150 feet between HMS loudspeakers and their external power supply are supported with only 1 dB of peak SPL loss using 18 AWG wire. Longer cable lengths are possible with heavier wire gauges (see Table 1 and Table 2).

Table 1: HMS Loudspeaker Cable Lengths (AWG)

Cable Gauge Resistance

12 AWG 0.0016 600 ft

14 AWG 0.00253 375 ft

16 AWG 0.00402 237 ft

18 AWG 0.00636 150 ft

20 AWG 0.01008 87 ft

Table 2: HMS Loudspeaker Cable Lengths (European)

Cable Gauge Resistance

2.50 mm

1.50 mm

1.00 mm

0.75 mm

(Ohms/ft)

(Ohms/m)

0.0052 157 m

0.01076 87 m

0.02087 45 m

0.03307 27 m

NOTE: The total cable resistance between HMS

loudspeakers and their external power supply should not exceed 2 ohms.

Approximate

Max. Length

Approximate

Max. Length

NOTE: For long cable runs, you can use a large

cable gauge for DC power and a separate balanced audio cable for audio. For more information, see “Long Cable Runs with Separate Cable for DC Power and Audio” on page 11.

Calculating the Maximum Cable Length

The maximum cable length for an HMS loudspeaker can be calculated with the following formula:

maximum length = 2 ohms / (2 * cable resistance)

For example, the maximum length of an 18 AWG cable with a resistance of 0.00636 is 157.2 feet (2 / (2 * 0.00636)).

BELDEN 1502 CABLE (OR EQUIVALENT)

The most convenient method of wiring HMS loudspeaker cables is with a multiconductor cable such as Belden 1502, which has dedicated conductors for DC power and balanced audio in a single jacket. When wiring loudspeaker cables with Belden 1502 (or equivalent), use the conventions in Table 3. The red and black wires are 18 AWG, thicker than the other three wires, and should be used for DC power (cable lengths up to 150 feet are possible with just 1 dB of peak SPL loss). The blue, white, and shield drain wires should be used for audio.

Belden 1502 Composite Cable

Table 3: HMS Loudspeaker Cables with Belden 1502

Wire Signal Gauge

Black DC power (–) 18 AWG

Red DC power (+) 18 AWG

Shield drain Audio shield 24 AWG

Blue Audio signal (–) 22 AWG

White Audio signal (+) 22 AWG

CAUTION: When wiring HMS loudspeaker

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HMS OPERATING INSTRUCTIONS

Audio cable

cable

Pin 1 DC power (–)

Pin 2 DC power (+)

Pin 3 Audio shield

Pin 4 Audio signal (–)

Pin 5 Audio signal (+)

that the polarity is observed (negative to negative, positive to positive) to avoid damage to the loudspeaker. In addition, make sure that audio pins are wired correctly; polarity reversals for audio signals affect system performance.

NOTE: For more information on cable assem-

bly, refer to Appendix B, “Assembling Loud-

speaker Cables.”

NOTE: For a complete list of available cables

and cable accessories from Meyer Sound, refer

to Appendix A, “HMS Accessories.”

LONG CABLE RUNS WITH SEPARATE CABLE FOR DC POWER AND AUDIO

For installations where Belden 1502 is not feasible, or for installations that require cable runs longer than 150 feet, you can use separate cables for DC power and balanced audio: a large-gauge cable for DC and a high-quality, balanced audio cable for audio. The separate cables attach to the Phoenix connector at the loudspeaker as shown in Figure 1. Cable runs longer than 150 feet for DC power require cable gauges larger than 18 AWG; for more information, see “Cable Lengths and Cable Gauges” on page 10.

Normal Operation (Green)

When powering on the HMS loudspeaker, the following startup events occur and are indicated by the On/Status LED:

1. The On/Status LED flashes multiple colors during its power-on sequence.

2. The LED turns solid green, indicating the power-on sequence has completed and the loudspeaker is ready to reproduce audio.

3. The LED remains green but is dimmed to eliminate any undesired glow in darkened theatres.

CAUTION: If after the power-on sequence the

On/Status LED does not turn solid green (instead flashes multiple colors or stays solid red) and the HMS loudspeaker does not output audio, the loudspeaker has encountered an error and may need to be serviced. Contact Meyer Sound Technical Support.

NOTE: All three LEDs for the HMS-15 (Input 1,

Input 2, and On/Status) must turn solid green before it will output audio. If some or all of the HMS-15 LEDs remain unlit, or not green, verify the cabling to the MPS-488HP.

Limiting (Yellow)

The On/Status LED turns yellow to indicate limiting. When the LED is solid yellow, limiting is engaged for the high-frequency channel. When the LED flashes yellow (on and off), limiting is engaged for the low-frequency channel.

Figure 1: Separate Cables for DC Power and Balanced Audio

ON/STATUS LED

The HMS user panel includes an On/Status LED that indicates whether the loudspeaker is operating normally (green), limiting or overheating (yellow), or clipping (red).

NOTE: The HMS-15 also includes two Input

LEDs that indicate, when solid green, when the

inputs are receiving voltage from the MPS-488HP.

When engaged, limiting not only protects the drivers but also prevents signal peaks from causing excessive distortion in the amplifier channels, thereby preserving headroom and maintaining smooth frequency response at high levels. When levels return to normal, below the limiter thresholds, limiting ceases and the On/Status LED returns to green.

The HMS loudspeaker performs within its acoustical specifications at normal temperatures when the On/Status LED is green, or when limiting is not continuous. If limiting activity is continuous, the loudspeaker is nearing the limits of its operating capabilities where:

■ Increases to the input level have no effect

■ Distortion increases due to clipping

■ Drivers are subjected to excessive heat and excursion,

thereby compromising their lifespan

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CHAPTER 2: HMS LOUDSPEAKERS

CAUTION: Continuous limiting indicates that a

safe, optimum level has been exceeded. If the HMS loudspeakers in a cinema installation begin to limit before reaching the desired SPL, consider adding more units to the system.

Operating Temperature

The On/Status LED also turns solid yellow when the HMS loudspeaker’s internal temperature reaches a certain level, indicating the unit is reaching its maximum heat dissipation. When the On/Status LED is yellow, a reduction in SPL is recommended. While the loudspeaker will continue to operate while the LED is yellow, the limiter threshold is lowered (causing the output level to also be reduced) to prevent the loudspeaker from overheating. When the loudspeaker’s internal temperature returns to a normal level, the On/Status LED returns to green and the limiter threshold returns to normal.

Amplifier Cooling

HMS loudspeakers rely solely on natural convection for cooling from air flowing over their heat sinks. The efficient amplifier and heat sink design keeps temperatures low, even when units are operated at high ambient temperatures and driven continuously at high output levels.

PAD SWITCH (HMS-10 ONLY)

The HMS-10 user panel includes a Pad switch that, when enabled, reduces the loudspeaker’s internal gain by 7.5 dB, thereby lowering the loudspeaker’s noise floor. This reduces noise generated from audio sources upstream from the loudspeaker and is especially useful for close-proximity listening.

HMS-10 Pad Switch

NOTE: When the Pad switch is enabled (set to

Pad), to achieve the linear peak SPL for the loudspeaker, the gain for the processor driving the loudspeaker must be increased by 7.5 dB.

Clipping on Input (Red)

The On/Status turns red when the loudspeaker’s input stage clips, causing the amplifier to overload. When the On/Status LED is red, the source level should be reduced to avoid distortion and to avoid overloading the amplifier.

CAUTION: If the On/Status LED turns solid red

and the loudspeaker continues to output audio, though at reduced levels, the loudspeaker’s voltage may have dropped below 25 V DC. When these conditions are encountered, operation of the loudspeaker should cease and its power supply and cabling should be verified.

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CHAPTER 3: POWERING HMS LOUDSPEAKERS

MPS-488HP

CAUTION: Disconnect the mains plug or power

off the MPS-488HP before disconnecting its

power cord.

TIP: For complete information on using the

MPS-488HP IntelligentDC power supply, refer to the MPS-488HP Operating Instructions (PN 05.205.005.01).

POWERING HMS LOUDSPEAKERS

NOTE: The MPS-488HP can power up to eight

single-channel HMS loudspeakers (HMS-5, HMS-10, and HMS-12), or up to four dual-channel HMS-15 loudspeakers.

4. Connect HMS loudspeakers to the MPS-488HP channel outputs. Use composite cables (such as Belden 1502 or equivalent) wired for both DC power and balanced audio and outfitted with the appropriate connectors.

■ To power single-channel HMS loudspeakers (HMS-5,

HMS-10, and HMS-12), connect each loudspeaker to a single channel output with a single composite cable. The MPS-488HP can power up to eight single-channel HMS loudspeakers.

To power HMS loudspeakers with the MPS-488HP:

1. Power off the MPS-488HP.

2. Connect audio sources (from a mixer or processor) to the MPS-488HP channel inputs. Use balanced XLR cables.

3. Use the MPS-488HP Link switches to route channel inputs to the desired channel outputs. For information on the MPS-488HP Link switches, refer to the MPS-488HP

Operating Instructions (PN 05.205.005.01).

MPS-488HP with Eight HMS-10 Loudspeakers

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CHAPTER 3: POWERING HMS LOUDSPEAKERS

MPS-488HP

■ To power dual-channel HMS-15 loudspeakers, connect

each loudspeaker to a channel output pair (1–2, 3–4, 5–6, or 7–8) with two separate composite cables. The MPS-488HP can power up to four dual-channel HMS-15 loudspeakers.

each cable end. This allows you to use a larger gauge for the DC cable so you can achieve longer cable runs (see “Long Cable Runs with Separate Cable for DC Power and Audio” on page 11).

5. Power on the MPS-488HP and monitor the LEDs on the front panel to verify connections. For information on the MPS-488HP LEDs, refer to the MPS-488HP Operating Instructions (PN 05.205.005.01).

6. Monitor the HMS loudspeaker LEDs to verify they are receiving power.

■ For single-channel HMS loudspeakers (HMS-5, HMS-10,

and HMS-12), make sure the On/Status LED turns solid green after powering on the loudspeakers.

■ For dual-channel HMS-15 loudspeakers, make sure the

two Input LEDs and On/Status LED turn solid green after powering on the loudspeakers.

MPS-488HP with Four HMS-15 Loudspeakers

CAUTION: When powering HMS-15 loudspeak-

ers, you must use two separate composite cables connected to an MPS-488HP channel output pair (1–2, 3–4, 5–6, or 7–8). Do not use a single cable to deliver power to the HMS-15’s two Input connectors. Never, in any manner, combine the signals from two MPS-488HP channel outputs, either at the power supply (source) or the loudspeaker (destination).

CAUTION: Make sure loudspeaker cables are

wired correctly. For details on assembling loudspeaker cables, refer to Appendix B, “Assembling Loudspeaker Cables.”

TIP: You can use separate cables for HMS loud-

speaker connections: a 2-conductor cable for DC power and a 3-conductor cable for balanced audio, both attached to a single Phoenix connector on

7. Enable output from the audio sources (from the mixer or processor) connected to the MPS-488HP.

CONFIGURING THE MPS-488HP IN COMPASS RMS

IntelligentDC loudspeakers can connect to RMS networks via the MPS-488HP external supply (when equipped with the factory-installed RMS option). Up to eight single-channel HMS loudspeakers (HMS-5, HMS-10, and HMS-12) or up to four dual-channel HMS-15 loudspeakers can be connected to the MPS-488HP with their voltage and DC current monitored in Compass RMS™.

NOTE: In order for the MPS-488HP to report the

correct voltage and current draw for the HMS-15 to RMS, the HMS-15 must be connected to an odd-even output pair (1–2, 3–4, 5–6, or 7–8) using two separate composite cables.

To configure the MPS-488HP in Compass RMS:

1. Make sure the MPS-488HP power supply is powered on and connected to the RMS network.

2. In Compass, click the RMServer > Network tab.

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HMS OPERATING INSTRUCTIONS

3. In the Device list, right-click the MPS-488HP powering the HMS loudspeakers and choose Edit Loudspeaker Inventory.

4. In the Edit Loudspeaker Inventory dialog box, click in the Product column and select the HMS loudspeaker model connected to each MPS-488HP channel output.

■ Single-channel HMS loudspeakers (HMS-5, HMS-10, and

HMS-12) occupy a single channel output.

6. Click OK to save and upload the MPS-488HP loudspeaker inventory. Once the MPS-488HP device is added to an RMS page, the page displays the voltage and current draw for the connected HMS loudspeakers.

■ Dual-channel HMS-15 loudspeakers automatically

occupy two channel outputs.

5. Enter a name and serial number for each HMS loudspeaker.

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CHAPTER 3: POWERING HMS LOUDSPEAKERS

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CHAPTER 4: HMS MOUNTING OPTIONS

IMPORTANT SAFETY CONSIDERATIONS!

When mounting Meyer Sound loudspeakers, the following precautions should always be observed:

■ All Meyer Sound products must be used in accordance

with local, state, federal, and industry regulations. It is the owner’s and user’s responsibility to evaluate the reliability of any rigging or mounting method for their application. Rigging should only be carried out by experienced professionals.

■ Use mounting and rigging hardware that has been rated

to meet or exceed the weight being hung.

■ Make sure to attach mounting hardware to the building’s

structural components (studs or joists), and not just to the

wall surface. Verify that the building’s structure and the anchors used for the installation will safely support the total weight of the mounted loudspeakers.

■ Use mounting hardware appropriate for the surface where

the loudspeaker will be installed.

■ Make sure bolts are tightened securely. Meyer Sound rec-

ommends using Loctite on bolt threads and safety cables.

■ Inspect mounting and rigging hardware regularly. Imme-

diately replace any worn or damaged components.

HMS MOUNTING OPTIONS

Table 4 list the mounting options available for HMS loudspeakers. All mounting options are rated for mounting a single HMS loudspeaker with a 7:1 safety factor. For more information, refer to the installation instructions included with the mounting hardware.

Table 4: HMS Mounting Options

Model (Part Number) Features Maximum Uptilt/Downtilt Weight Rated for

Overhead Mounting

FMB-HMS Fixed Mount Bracket

(PN 40.198.040.01)

Mounts HMS loudspeakers (all models) on walls at a fixed 0degree angle. The fixed bracket mounts cabinets 0.87 inches from the wall.

■ HMS-5: 0°

■ HMS-10: 0°

■ HMS-12: 0°

■ HMS-15: 0°

■ HMS-15AC: 0°

3.1 lbs

(1.4 kg)

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CHAPTER 4: HMS MOUNTING OPTIONS

Table 4: HMS Mounting Options

Model (Part Number) Features Maximum Uptilt/Downtilt Weight Rated for

Overhead Mounting

AMB-HMS Adjustable Mount Bracket

(PN 40.198.041.01)

Mounts HMS loudspeakers (all models) on walls with uptilt or downtilt. The available tilt depends on the HMS loudspeaker model mounted. When

■ HMS-5: +5°/–16°

■ HMS-10: +5°/–16°

■ HMS-12: +5°/–12°

■ HMS-15: +5°/–10°

■ HMS-15AC: +5°/–10°

4.2 lbs

(1.9 kg)

installed with no tilt, the bracket mounts cabinets 2.24 inches from the wall.

Note: Wider downtilt may be possible depending on the building’s structural components and mounting surface.

HY-HMS Half Yoke

(PN 40.227.031.01)

Suspends HMS-5, HMS-10, and HMS-12 loudspeakers with a full range of tilt (360°). The yoke can attach directly to ceilings or can accept “C” or “G” hanging clamps with standard 1/2-inch or 12 mm bolts.

■ HMS-5: 360°

■ HMS-10: 360°

■ HMS-12: 360°

12.4 lbs (5.6 kg)

Ye s

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HMS OPERATING INSTRUCTIONS

Table 4: HMS Mounting Options

Model (Part Number) Features Maximum Uptilt/Downtilt Weight Rated for

Overhead Mounting

HY-HMS-15 Half Yoke

(PN 40.242.035.01)

Suspends HMS-15 and HMS-15AC loudspeakers with a

■ HMS-15: 360°

■ HMS-15AC: 360°

7.6 lbs

(3.4 kg)

Ye s

full range of tilt (360°). The yoke can attach directly to ceilings or can accept “C” or “G” hanging clamps with standard 1/2-inch or 12 mm bolts.

MUB-HMS U-Bracket

(PN 40.227.032.01)

Mounts HMS-5, HMS-10, and HMS-12 loudspeakers on walls and ceilings with uptilt or downtilt. The U-bracket includes three loudspeaker attachment points for placing the loudspeaker closer or further from the mounting surface. The available tilt is determined by which HMS loudspeaker model is mounted and which attachment points are used.

■ HMS-5: +60°/–43°

■ HMS-10: +32°/–25°

■ HMS-12: +23°/–20°

Note: Wider uptilt and downtilt may be possible depending on the building’s structural components and mounting surface.

13.5 lbs (6.1 kg)

Ye s

Page 20

CHAPTER 4: HMS MOUNTING OPTIONS

Table 4: HMS Mounting Options

Model (Part Number) Features Maximum Uptilt/Downtilt Weight Rated for

Overhead Mounting

MUB-HMS-15 U-Bracket

(PN 40.242.025.01)

Mounts HMS-15 and HMS-15AC loudspeakers on walls and ceilings with uptilt or downtilt. The U-bracket includes a loudspeaker attachment slot for placing the loudspeaker closer or further from the mounting surface. The available tilt is determined by how close the loudspeaker is placed to the mounting surface.

■ HMS-15: +16°/–13°

■ HMS-15AC: +16°/–13°

Note: Wider uptilt and downtilt may be possible depending on the building’s structural components and mounting surface.

7.6 lbs

(3.4 kg)

Ye s

WH-HMS Wall Hinge Bracket

(PN 40.227.030.01)

Mounts HMS-5, HMS-10, and HMS-12 loudspeakers on walls with the capability of aiming them horizontally up to 90° away from the wall. The bracket is symmetrical, allowing it to be rotated 180° so cabinets can be aimed either toward or away from the screen.

CAUTION: When mounting HMS loudspeakers

in soffits, allow at least 3 inches above the loudspeaker for the bracket to slide into place. The extra space is also required for ventilation for the loudspeaker’s amplifier and heat sink.

■ HMS-5: 0°

■ HMS-10: 0°

■ HMS-12: 0°

Note: Supports horizontally aiming loudspeakers ±90°.

10.4 lbs (4.7 kg)

NOTE: When mounting HMS loudspeakers in

soffits, allow sufficient space around the loudspeaker so its coverage pattern is unobstructed by the walls of the soffit.

Page 21

CHAPTER 5: REMOVING HMS GRILLE FRAMES

If a cinema installation requires it, HMS grille frames can be easily removed. Grille frames for the HMS-5 and HMS-10 are removed by simply unsnapping the corner treeloks and removing the grille. Grille frames for the HMS-12 and HMS-15 include an L-bracket securing them to the bottom of the cabinet, for safety reasons, that must be removed before the grille can be detached.

REMOVING HMS-12 AND HMS-15 GRILLE FRAMES

To remove the HMS-12 or HMS-15 grille frame:

1. Use a Phillips-head screwdriver to loosen the pan head screw on the bottom front of the cabinet securing the grille-frame’s L-bracket. Slide the L-bracket forward to remove it. Set the L-bracket aside.

2. Re-tighten the pan head screw without the L-bracket installed.

3. Unsnap the corner treeloks of the grille frame and remove the grille.

CAUTION: For installations that require grille frames, do not remove the L-brackets securing HMS-12 and

HMS-15 grille frames.

Page 22

CHAPTER 5: REMOVING HMS GRILLE FRAMES

Page 23

APPENDIX A: HMS ACCESSORIES

The following HMS accessories are available from Meyer Sound.

HMS Accessories

Part Number Accessory Notes

09.205.001.01 MPS-488HPp external power supply (with US power cord)

09.205.001.02 MPS-488HPp external power supply (with CE power cord)

484.065 Phoenix 5-pin female cable mount connector Connects to MPS-488HPp channel output connectors and

524.014 Bulk cable, no connectors (regular) 500-ft spool, black

524.015 Bulk cable, no connectors (plenum) 500-ft spool, white

NOTE: Bulk cables use Belden 1502R (regular) or Belden 1502P (plenum) cable. Belden 1502 is a composite

cable comprised of two 18 AWG wires for DC power, two 22 AWG wires for balanced audio, and one 24 AWG wire for audio shield. This single cable can deliver both DC power and balanced audio to loudspeakers at cable runs of up to 150 feet with only 1 dB of loss in peak SPL. Longer cable runs are possible with heavier gauges for DC power and separate cables for balanced audio. For more information, see “Current Draw and Cable Requirements for HMS Loudspeakers” on page 10.

Channel outputs equipped with Phoenix 5-pin male connectors

HMS Input connectors

Page 24

APPENDIX A: HMS ACCESSORIES

Page 25

APPENDIX B: ASSEMBLING LOUDSPEAKER CABLES

1”

0.275”

Pin 1 Black DC power (–)

Pin 2 Red DC power (+)

Pin 3 Shield drain Audio shield

Pin 4 Blue Audio shield (–)

Pin 5 White Audio shield (+)

CAUTION: When wiring loudspeaker cables, it is extremely important that each pin be wired correctly. Make sure

the 48 V DC from the external power supply is wired directly (and only) to the 48 V DC pins on the loudspeaker connector, and that the polarity is observed (negative to negative, positive to positive) to avoid damage to the loudspeaker. In addition, make sure that audio pins are wired correctly; polarity reversals for audio signals affect system performance.

ASSEMBLING PHOENIX-TO-PHOENIX LOUDSPEAKER CABLES

When connecting Phoenix-equipped HMS loudspeakers to the MPS-488HPp power supply (also with Phoenix connectors), you need a Phoenix 5-pin female to Phoenix 5-pin female cable. The following procedure documents how to assemble this cable.

Assembled Phoenix-to-Phoenix Cable

To assemble a Phoenix-to-Phoenix cable:

1. If the cable has not yet been stripped, strip one end of the cable. Strip the outer shielding by 1 inch and then strip the black, red, blue, and white wires by 0.275 inch.

2. Insert the five exposed conductors into the five cable holes in a Phoenix 5-pin female cable mount connector. Use the following wiring scheme.

Pin Destinations for Phoenix 5-Pin Female Cable Mount Connector

Page 26

APPENDIX B: ASSEMBLING LOUDSPEAKER CABLES

Tighten screws

3. Secure the conductors by tightening the five screws in the Phoenix cable mount connector. Screws should be torqued to 5–6 Nm (4.4–5.3 in-lbs).

CAUTION: Screws should not be inserted into the Phoenix connector while the connector rests in a mating plug.

Doing so will damage the contacts. During assembly, the Phoenix connector should only be held in place exter-

nally.

4. Repeat the previous steps and attach the other end of the cable to another Phoenix 5-pin female cable mount connector.

5. Verify the wiring polarity is correct for both cable ends.

Page 27

APPENDIX C: HMS SPECIFICATIONS

HMS Specifications

ACOUSTICAL HMS-5 HMS-10 HMS-12 HMS-15

Operating Frequency Range

Frequency Response 60 Hz – 17.5 kHz ±4 dB 58 Hz – 17.5 kHz ±4 dB 63 Hz – 17 kHz ±4 dB 54 Hz – 16 kHz ±4 dB

Phase Response 250 Hz – 18 kHz ±45° 290 Hz – 18 kHz ±45° 240 Hz – 18 kHz ±45° 290 Hz – 18 kHz ±45°

Linear Peak SPL 120.0 dB 123.5 dB 126.0 dB 128.5 dB

Dynamic Range 110 dB 110 dB 110 dB 110 dB

Coverage 80° symmetrical 80° symmetrical 100° symmetrical 80° horizontal by 50° vertical

Crossover 1.7 kHz 2.5 kHz 840 Hz 680 Hz

TRANSDUCERS HMS-5 HMS-10 HMS-12 HMS-15

Low Frequency Two 5-inch long-

High Frequency One 2-inch diaphragm

CONNECTORS HMS-5 HMS-10 HMS-12 HMS-15

Audio/Power (Wiring)

Pin 1 DC power (–) DC power (–)DC power (–)DC power (–)

Pin 2 DC power (+) DC power (+) DC power (+) DC power (+)

Pin 3 Audio shield Audio shield Audio shield Audio shield

Pin 4 Audio signal (–) Audio signal (–) Audio signal (–) Audio signal (–)

Pin 5 Audio signal (+) Audio signal (+) Audio signal (+) Audio signal (+)

AUDIO INPUT HMS-5 HMS-10 HMS-12 HMS-15

Type Differential, electronically balanced

Maximum Common Mode Range

Input Impedance 10 kOhm differential between pins 4 (–) and 5 (+)

DC Blocking Differential DC blocking up to the maximum common mode voltage

CMRR >50 dB, typically 80 dB (50 Hz – 500 Hz)

RF Filter Common mode: 425 kHz; Differential mode: 142 kHz

TIM Filter <80 kHz, integral to signal processing

Nominal Input Sensitivity

Input Level Audio source must be capable of producing +16 dBV (6.3 V rms, 9.0 V peak) into 600 ohms to produce the linear peak

55 Hz – 18 kHz 55 Hz – 18 kHz 59 Hz – 18 kHz 50 Hz – 18 kHz

Note: Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics.

Note: Free field, measure with 1/3rd octave frequency resolution at 4 meters.

Note: Free field, measured with pink noise, onset of nonlinearity, referred to 1 meter.

Note: At this frequency, the transducers produce equal sound pressure levels.

One 10-inch long-

excursion cone drivers

compression driver

One Phoenix 5-pin male

composite input

Note: Audio shield, chassis/earth through a 1 kOhm, 1000 pF, 15 V clamped network to provide virtual ground lift at audio frequencies.

±15 V DC, clamped to earth for voltage transient protection

6.0 dBV (2.0 V rms) continuous is typically the onset of limiting for noise and music

SPL over the operating bandwidth of the loudspeaker

excursion cone driver

One 2-inch diaphragm

compression driver

One Phoenix 5-pin male

composite input

2.0 dBV (1.3 V rms) continuous is typically the onset of limiting for noise and music Note: With the Pad switch enabled, the input sensitivity is 9.5 dBV (3.0 V rms).

One 12-inch long-

excursion cone driver

One 3-inch diaphragm

compression driver

One Phoenix 5-pin male

composite input

2.0 dBV (1.3 V rms) continuous is typically the onset of limiting for noise and music

One 15-inch long-

excursion cone driver

One 3-inch diaphragm

compression driver

Two Phoenix 5-pin male

composite inputs

3.0 dBV (1.4 V rms) continuous is typically the onset of limiting for noise and music

Page 28

APPENDIX C: HMS SPECIFICATIONS

HMS Specifications

AMPLIFIER HMS-5 HMS-10 HMS-12 HMS-15

Amplifier Type 3-channel with

active crossover

Output Power 300 W 300 W 300 W 600 W

Note: Wattage rating based on the maximum unclipped burst sine-wave rms voltage the amplifier will produce into the nominal load impedance.

THD, IM TIM <.02% <.02% <.02% <.02%

Load Capacity 8 ohms each low channel,

12 ohms high channel

Cooling Convection Convection Convection Convection

DC POWER HMS-5 HMS-10 HMS-12 HMS-15

Voltage Requirement 48 V DC 48 V DC 48 V DC 48 V DC

Note: Requires MPS-488HP IntelligentDC power supply. The MPS-488HP can power up to eight HMS-5, HMS-10, or HMS-12 loudspeakers, or up to four HMS-15 loudspeakers.

RMS HMS-5 HMS-10 HMS-12 HMS-15

Requires RMS option for the MPS-488HP IntelligentDC power supply. Reports voltage and current draw for the attached IntelligentDC loudspeakers to the host computer.

PHYSICAL HMS-5 HMS-10 HMS-12 HMS-15

Dimensions 15.00 inches W (381 mm)

12.45 inches H (316 mm)

9.66 inches D (245 mm)

Weight 18.4 lbs (8.3 kg) 26.2 lbs (11.9 kg) 43.0 lbs (19.5 kg) 60.0 lbs (27.2 kg)

Enclosure Multi-ply hardwood with

black-textured finish

Grille Frame Acoustically transparent,

detachable, black cloth-

covered frame

Mounting Rear attachment points

(3.94 inches x 3.94 inches,

100 mm x 100 mm)

FMB-HMS Fixed Mount Bracket

AMB-HMS Adjustable Mount Bracket

HY-HMS Half Yoke

HY-HMS15 Half Yoke

MUB-HMS U-Bracket

MUB-HMS15 U-Bracket

WH-HMS Wall Hinge Bracket





2-channel with

active crossover

4 ohms low channel,

12 ohms high channel

15.50 inches W (394 mm)

19.50 inches H (495 mm)

12.48 inches D (317 mm)

Multi-ply hardwood with

black-textured finish

Acoustically transparent,

detachable, black cloth-

covered frame

Rear attachment points

(3.94 inches x 3.94 inches,

100 mm x 100 mm)

2-channel with

active crossover

4 ohms low channel, 8 ohms high channel

16.80 inches W (427 mm)

25.12 inches H (638 mm)

9.78 inches D (248 mm)

Multi-ply hardwood with

black-textured finish

Acoustically transparent,

detachable, black cloth-

covered frame

Rear attachment points

(3.94 inches x 3.94 inches,

100 mm x 100 mm)

2-channel with

active crossover

2 ohms low channel, 8 ohms high channel

19.00 inches W (483 mm)

29.10 inches H (739 mm)

12.50 inches D (318 mm)

Multi-ply hardwood with

black-textured finish

Acoustically transparent,

detachable, black cloth-

covered frame

Rear attachment points

(5.00 inches x 2.75 inches,

127 mm x 70 mm); side

attachment points with

3/8”-16 threads



Page 29

HMS OPERATING INSTRUCTIONS

3.70

[94 mm]

3.00

[76 mm]

5.67

[144 mm]

10.53

[267 mm]

Fixed

Bracket

15°

9.66

[245 mm]

4.75

[121 mm]

6.61

[168 mm]

4.25

[108 mm]

12.45

[316 mm]

15.00

[381 mm]

HMS Specifications

ENVIRONMENTAL HMS-5 HMS-10 HMS-12 HMS-15

Operating Temperature 0° C to +45° C

Non Operating Temperature

Humidity To 95% at 45° C (non-condensing)

Operating Altitude To 5,000 m (16,404 ft)

Non Operating Altitude To 12,000 m (39,000 ft)

Shock 30 g 11 msec half-sine on each of 6 sides

Vibration 10 Hz – 55 Hz (0.010 m peak-to-peak excursion)

–40° C to +75° C

HMS DIMENSIONS

HMS-5 Dimensions with FMB-HMS

HMS-5 Dimensions with FMB-HMS Fixed Mount Bracket

Page 30

APPENDIX C: HMS SPECIFICATIONS

3.70

[94 mm]

3.00

[76 mm]

5.26

[134 mm]

11.90

[299 mm]

Adjustable

Bracket

15°

9.66

[245 mm]

4.75

[121 mm]

6.61

[168 mm]

4.25

[108 mm]

12.45

[316 mm]

15.00

[381 mm]

HMS-5 Dimensions with AMB-HMS

HMS-5 Dimensions with AMB-HMS Adjustable Mount Bracket

Page 31

HMS-10 Dimensions with FMB-HMS

7.39

[188 mm]

3.00

[76 mm]

14.72

[374 mm]

5.26

[134 mm]

Adjustable

Bracket

19.50

[495 mm]

15.50

[394 mm]

12.48

[317 mm]

7.80

[198 mm]

5.00

[127 mm]

6.87

[174 mm]

15°

HMS OPERATING INSTRUCTIONS

HMS-10 Dimensions with FMB-HMS Fixed Mount Bracket

Page 32

APPENDIX C: HMS SPECIFICATIONS

7.39

[188 mm]

3.00

[76 mm]

14.72

[374 mm]

5.26

[134 mm]

Adjustable

Bracket

19.50

[495 mm]

15.50

[394 mm]

12.48

[317 mm]

7.80

[198 mm]

5.00

[127 mm]

6.87

[174 mm]

15°

HMS-10 Dimensions with AMB-HMS

HMS-10 Dimensions with AMB-HMS Adjustable Mount Bracket

Page 33

HMS-12 Dimensions with FMB-HMS

3.00

[76 mm]

10.57

[268 mm]

10.65

[272 mm]

5.67

[144 mm]

Fixed

Bracket

25.12

[638 mm]

16.80

[427 mm]

9.78

[248 mm]

2.25

[57 mm]

11.67

[296 mm]

6.20

[158 mm]

15°

HMS OPERATING INSTRUCTIONS

HMS-12 Dimensions with FMB-HMS Fixed Mount Bracket

Page 34

APPENDIX C: HMS SPECIFICATIONS

3.00

[76 mm]

10.57

[268 mm]

12.02

[305 mm]

5.26

[134 mm]

Adjustable

Bracket

25.12

[638 mm]

16.80

[427 mm]

9.78

[248 mm]

2.25

[57 mm]

11.67

[296 mm]

6.20

[158 mm]

15°

HMS-12 Dimensions with AMB-HMS

HMS-12 Dimensions with AMB-HMS Adjustable Mount Bracket

Page 35

HMS-15 Dimensions with FMB-HMS

3.00

[76 mm]

12.67

[322 mm]

14.74

[374 mm]

Adjustable

Bracket

5.26

[134 mm]

29.10

[739 mm]

19.00

[483 mm]

15.07

[383 mm]

8.20

[208 mm]

13.35

[339 mm]

4.34

[110 mm]

12.50

[318 mm]

15°

HMS OPERATING INSTRUCTIONS

HMS-15 Dimensions with FMB-HMS Fixed Mount Bracket

Page 36

APPENDIX C: HMS SPECIFICATIONS

3.00

[76 mm]

12.67

[322 mm]

14.74

[374 mm]

Adjustable

Bracket

5.26

[134 mm]

29.10

[739 mm]

19.00

[483 mm]

15.07

[383 mm]

8.20

[208 mm]

13.35

[339 mm]

4.34

[110 mm]

12.50

[318 mm]

15°

HMS-15 Dimensions with AMB-HMS

HMS-15 Dimensions with AMB-HMS Adjustable Mount Bracket

Page 37

HMS OPERATING INSTRUCTIONS

FEDERAL COMMUNICATIONS COMMISSION (FCC) STATEMENT

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their own expense.

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

INDUSTRY CANADA COMPLIANCE STATEMENT

This Class A digital apparatus complies with Canadian ICES-003.

AVIS DE CONFORMITÉ À LA RÉGLEMENTATION D'INDUSTRIE CANADA

Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

EN 55032 (CISPR 32) STATEMENT

Warning: This equipment is compliant with Class A of CISPR 32. In a residential environment this equipment may cause radio interference.

Page 38

APPENDIX C: HMS SPECIFICATIONS

Page 39

Page 40

Meyer Sound Laboratories Inc. 2832 San Pablo Avenue Berkeley, CA 94702

+1 510 486.1166 www.meyersound.com

HMS Operating Instructions

PN 05.198.005.01 A