Meyer Sound HMS-5 Bedienungsanleitung

Keep these important operating instructions.

Check www.meyersound.com for updates.

OPERATING INSTRUCTIONS CINE STUDIO

HMS Cinema Surround Loudspeaker (IntelligentDC)

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

HMS Operating Instructions, PN 05.198.005.01 A

The contents of this manual are furnished for informational purposes only, are subject to change without notice, and should not be con-

strued as a commitment by Meyer Sound Laboratories Inc. Meyer Sound assumes no responsibility or liability for any errors or inaccura-

cies 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 writ-

ten 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 Laborato-

ries Inc. (Reg. U.S. Pat. & Tm. Off.). All third-party trademarks mentioned herein are the property of their respective trademark holders.

iii

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

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 follow-

ing 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:

■Tel: +1 510 486.1166

■Tel: +1 510 486.0657 (after hours support)

■Web: www.meyersound.com/support

■Email: [email protected]

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 self-

powered HMS maintains a wide dynamic range, exceptional

fidelity, and precise clarity during the most demanding of dig-

ital soundtracks. Boasting a wide frequency range and a gen-

erous linear peak SPL with very low distortion, the HMS

delivers the full intensity and nuance of cinema surround

channels to every listener without compromise.

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 com-

pression 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, con-

sistent coverage.

The HMS-5, HMS-10, HMS-12, and HMS-15 are equipped

with IntelligentDC technology and receive DC power and bal-

anced audio from composite Phoenix™ 5-pin connectors.

Powering the loudspeakers from an external DC source elim-

inates the need for AC conduits while preserving the advan-

tages of self-powered systems. IntelligentDC loudspeakers

require an MPS-488HP external 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 loudspeak-

HMS-10 Cinema Surround Loudspeaker (With Grille)

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 sup-

pression. The HMS-15AC is optionally available with its own

onboard RMS remote monitoring system module for compre-

hensive 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 immer-

sive 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 instal-

lations. 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-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-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 loud-

speaker 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-10 Cinema Surround Loudspeaker

The HMS-10 cinema loudspeaker includes one 10-inch low-

frequency, long-excursion cone driver, and one 2-inch dia-

phragm high-frequency compression driver on a symmetri-

cal, constant-directivity 80-degree horn. The loudspeaker is

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 (Without Grille)

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 loud-

speaker 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 2-

channel 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)

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.

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).

MPS-488HP IntelligentDC Power Supply

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 Intel-

ligentDC power supply (one channel output per loudspeaker).

The MPS-488HP can power up to eight single-channel HMS

loudspeakers.

Single-channel HMS loudspeakers ship with one Phoenix

5-pin female cable mount connector for assembling loud-

speaker 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 infor-

mation, 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 loud-

speaker. 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 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 neg-

ative) 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 out-

puts per loudspeaker). The MPS-488HP can power up to four

HMS-15 loudspeakers.

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 sepa-

rate 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 equiva-

lent) must be used to route DC power and balanced audio to

the two inputs for the HMS-15 loudspeaker. For more infor-

mation, see “Belden 1502 Cable (or Equivalent)” on page 10

and Appendix B, “Assembling Loudspeaker Cables.”

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

Dual-Channel Input Connectors (HMS-15)

CHAPTER 2: HMS LOUDSPEAKERS

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 loud-

speaker. In addition, make sure that audio pins are

wired correctly; polarity reversals for audio signals

affect system performance.

CURRENT DRAW AND CABLE REQUIRE-

MENTS FOR HMS LOUDSPEAKERS

DC current draw for HMS loudspeakers is dynamic and fluc-

tuates as operating levels change. Cabling between HMS

loudspeakers and their external power supply adds resis-

tance and hence causes a voltage drop at the loudspeakers.

Because lower DC voltages compromise amplifier perfor-

mance (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).

NOTE: The total cable resistance between HMS

loudspeakers and their external power supply

should not exceed 2 ohms.

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

cable gauge for DC power and a separate bal-

anced 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 bal-

anced 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.

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

Table 1: HMS Loudspeaker Cable Lengths (AWG)

Cable Gauge Resistance

(Ohms/ft)

Approximate

Max. Length

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

(Ohms/m)

Approximate

Max. Length

2.50 mm20.0052 157 m

1.50 mm20.01076 87 m

1.00 mm20.02087 45 m

0.75 mm20.03307 27 m

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

Pin 1 DC power (–)

Pin 2 DC power (+)

Pin 3 Audio shield

Pin 4 Audio signal (–)

Pin 5 Audio signal (+)

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