Meyer Sound HMS-10TM User Manual

Page 1
OPERATING INSTRUCTIONS
HMS-10™ Surround Loudspeaker MPS-488 Power Supply
CINEMA EXPERIENCE
Keep these important operating instructions.
Check www.meyersound.com for updates.
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DECLARATION OF CONFORMITY ACCORDING TO ISO/IEC GUIDE 22 AND EN 45014
Manufacturer’s Name: Meyer Sound Laboratories Inc.
Manufacturer’s Address: 2832 San Pablo Avenue
Berkeley, CA 94702-2204, USA
Declares that the product:
Product Names: HMS-10 Cinema Surround Loudspeaker
MPS-488 Power Supply
Product Options: All
Conforms to the following Product Specifications:
Safety: EN 60065:2002
EMC:
EN55103-1: 1997 emission EN55103-2: 1997 immunity
This device also complies with EN 55103-1 & -2. 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.
Supplementary Information: The product herewith complies with the requirements of the Low Voltage
Directive (LVD) 2006/95/EC and the EMC Directive 2004/108/EC.
Signature:
1
2
Meyer Sound Laboratories Inc. Berkeley, California 94702 USA Issued June 2, 2009
European Contact: Your local Meyer Sound dealer or Meyer Sound Germany, GmbH.
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.
Acheron, HMS-10, and all alpha-numeric designations for Meyer Sound products and accessories are trademarks of Meyer Sound. Compass, Galileo, Meyer Sound, the Meyer Sound wave logo, and SIM 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.
Printed in the U.S.A.
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SYMBOLS USED
!
!
These symbols indicate important safety or operating features in this booklet and on the chassis:
Dangerous voltages: risk of
electric shock
Pour indiquer les risques
résultant de tensions dangereuses
Warnung vor gef
elektrischer Spannung
Para indicar voltajes peligrosos Instrucciones importantes de
ährlicher
Important operating instructions Frame or chassis Protective earth ground
Pour indequer important
instructions
Wichtige Betriebsanweisung oder
Gebrauchsanleitung
funcionamiento y/o manteniento
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this loudspeaker near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accor­dance with Meyer Sound’s installation instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
9. Do not defeat the safety purpose of the grounding-type plug. A grounding type plug has two blades and a third grounding prong. The third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
Masse, châssis Terre de protection
Rahmen oder Geh
Armadura o chassis Tierra proteccionista
äuse
Masse Schutzleiter
11.Only use attachments/accessories specified by Meyer Sound.
12.If applicable, use only with the caster rails or rigging specified by Meyer Sound, or sold with the loudspeaker. Handles are for carrying only.
CAUTION: Rigging should only be done by
experienced professionals.
13.Unplug this loudspeaker during lightning storms or when unused for long periods of time.
14.Refer all servicing to qualified service personnel. Servic­ing is required when the loudspeaker has been damaged in any way, such as when the power-supply cord or plug has been damaged; liquid has been spilled or objects have fallen into the loudspeaker; rain or moisture has entered the loudspeaker; the loudspeaker has been dropped; or when for undetermined reasons the loud­speaker does not operate normally.
10.Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the loudspeaker. The AC mains plug or appliance coupler shall remain readily accessible for operation.
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SAFETY SUMMARY
English
To reduce the risk of electric shock, dis-
connect the loudspeaker from the AC mains before installing audio cable. Reconnect the power cord only after making all signal connections.
Connect the loudspeaker to a two-pole,
three-wire grounding mains receptacle. The receptacle must be connected to a fuse or circuit breaker. Connection to any other type of receptacle poses a shock hazard and may violate local electrical codes.
Do not install the loudspeaker in wet or
humid locations without using weather protection equipment from Meyer Sound.
Do not allow water or any foreign object
to get inside the loudspeaker. Do not put objects containing liquid on or near the unit.
To reduce the risk of overheating the
loudspeaker, avoid exposing it to direct sunlight. Do not install the unit near heat-emitting appliances, such as a room heater or stove.
This loudspeaker contains potentially
hazardous voltages. Do not attempt to disassemble the unit. The unit contains no user-serviceable parts. Repairs should be performed only by factory­trained service personnel.
Français
Pour réduire le risque d’électrocution,
débrancher la prise principale de l’haut­parleur, avant d’installer le câble d’inter­face allant à l’audio. Ne rebrancher le bloc d’alimentation qu’après avoir effectué toutes les connections.
Branchez l’haut-parleur dans une prise
de courant à 3 dérivations (deux pôles et la terre). Cette prise doit être munie d’une protection adéquate (fusible ou coupe-circuit). Le branchement dans tout autre genre de prise pourrait entraîner un risque d’électrocution et peut constituer une infraction à la régle­mentation locale concernant les instal­lations électriques.
Ne pas installer l’haut-parleur dans un
endroit où il y a de l’eau ou une humid­ité excessive.
Ne pas laisser de l’eau ou tout objet
pénétrer dans l’haut-parleur. Ne pas placer de r´cipients contenant un liquide sur cet appareil, ni à proximité de celui­ci.
Pour éviter une surchauffe de l’haut-
parleur, conserver-la à l’abri du soleil. Ne pas installer à proximité d’appareils dégageant de la chaleur tels que radia­teurs ou appareils de chauffage.
Ce haut-parleur contient des circuits
haute tension présentant un danger. Ne jamais essayer de le démonter. Il n’y a aucun composant qui puisse être réparé par l’utilisateur. Toutes les répa­rations doivent être effectuées par du personnel qualifié et agréé par le con­structeur.
Deutsch
Um die Gefahr eines elektrischen
Schlages auf ein Minimum zu reduzieren, den Lautsprecher vom Stromnetz trennen, bevor ggf. ein Audio-Schnittstellensignalkabel ange­schlossen wird. Das Netzkabel erst nach Herstellung aller Signalverbindun­gen wieder einstecken.
Der Lautsprecher an eine geerdete
zweipolige Dreiphasen-Netzsteckdose anschließen. Die Steckdose muß mit einem geeigneten Abzweigschutz (Sicherung oder Leistungsschalter) ver­bunden sein. Der Anschluß der unter­brechungsfreien Stromversorgung an einen anderen Steckdosentyp kann zu Stromschlägen führen und gegen die örtlichen Vorschriften verstoßen.
Der Lautsprecher nicht an einem Ort
aufstellen, an dem sie mit Wasser oder übermäßig hoher Luftfeuchtigkeit in Berührung kommen könnte.
Darauf achten, daß weder Wasser noch
Fremdkörper in das Innere den Lautsprecher eindringen. Keine Objekte, die Flüssigkeit enthalten, auf oder neben die unterbrechungsfreie Stromversorgung stellen.
Um ein Überhitzen dem Lautsprecher
zu verhindern, das Gerät vor direkter Sonneneinstrahlung fernhalten und nicht in der Nähe von wärmeabstrahl­enden
Haushaltsgeräten (z.B. Heizgerät oder
Herd) aufstellen.
Im Inneren diesem Lautsprecher herr-
schen potentiell gefährliche Spannun­gen. Nicht versuchen, das Gerät zu öffnen. Es enthält keine vom Benutzer reparierbaren Teile. Reparaturen dürfen nur von ausgebildetem Kundenienst­personal durchgeführt werden.
Español
Para reducir el riesgo de descarga eléc-
trica, desconecte de la red de voltaje el altoparlante antes de instalar el cable de señal de audio. Vuelva a conectar la alimentacion de voltaje una vez efectu­adas todas las interconexiones de señalizacion de audio.
Conecte el altoparlante a un tomacorri-
ente bipolar y trifilar con neutro de puesta a tierra. El tomacorriente debe estar conectado a la protección de deri­vación apropiada (ya sea un fusible o un disyuntor). La conexión a cualquier otro tipo de tomacorriente puede constituir peligro de descarga eléctrica y violar los códigos eléctricos locales.
No instale el altoparlante en lugares
donde haya agua o humedad excesiva.
No deje que en el altoparlante entre
agua ni ningún objeto extraño. No ponga objetos con líquidos encima de la unidad ni cerca de ella.
Para reducir el riesgo de sobrecalen-
tamiento, no exponga la unidad a los rayos directos del sol ni la instale cerca de artefactos que emiten calor, como estufas o cocinas.
Este altoparlante contiene niveles de
voltaje peligrosos en potencia. No intente desarmar la unidad, pues no contiene piezas que puedan ser repar­das por el usuario. Las reparaciones deben efectuarse únicamente por parte del personal de mantenimiento capaci­tado en la fábrica.
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CONTENTS

Chapter 1: Introduction 7
How to Use This Manual 7 the HMS-10 Surround Loudspeaker 7
Chapter 2: The MPS-488P Power Supply 9
The MPS-488P Front Panel 9 The MPS-488 MPS-488 Safety Issues 12
P Rear Panel 10
P Current Draw 12
Chapter 3: The HMS-10 Loudspeaker 15
The HMS-10 Connector 15 Connecting HMS-10 Loudspeakers to the MPS-488
P 16
Chapter 4: Mounting the HMS-10 17
Important Safety Considerations 17 Mounting the HMS-10 with the Fixed Mount Bracket 17 Mounting the HMS-10 with the Adjustable Mount Bracket 19 Mounting HMS-10s in Soffits 20
Appendix A: HMS-10 Accessories 21
Appendix B: HMS-10 Cable Assembly 23
Appendix C: HMS-10 Specifications 25
Appendix D: MPS-488 Specifications 29
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CONTENTS
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CHAPTER 1: INTRODUCTION

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HOW TO USE THIS MANUAL

Make sure to read these operating instructions in their entirety before configuring a loudspeaker system with HMS-10s. In particular, pay close attention to material related to safety issues.
As you read these operating 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 on the Meyer Sound
®
website:

THE HMS-10 SURROUND LOUDSPEAKER

Meyer Sound's HMS-10 is a full-range, two-way loud­speaker optimized for surround channels in theatres and re­recording stages. Designed to complement the Acheron™ line of screen channel loudspeakers, the self-powered HMS-10 maintains a wide dynamic range, full fidelity, and complete 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 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.
http://www.meyersound.com
Meyer Sound Technical Support is available at:
Te l: +1 510 486.1166
Fax: +1 510 486.8356
Email: techsupport@meyersound.com
HMS-10 Surround Loudspeaker (Shown without Grille)
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 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 Phoenix™ 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 are designed to store DC power and tolerate voltage drops, thereby accom­modating light-gauge cables and lengthy cable runs.
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CHAPTER 1: INTRODUCTION
HMS-10 loudspeaker systems require an MPS-488P 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 outputs — equipped with Phoenix 5-pin male connectors — can deliver DC power to up to four HMS-10 loudspeakers 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 HMS-10. Longer cable runs are possible for moderate applications that don't drive the loudspeakers to maximum output, or for installations with heavier wire gauges.
MPS-488P Power Supply
NOTE: The MPS-488
P was originally designed
for use with the MM-4XP miniature loud-
speaker. While the MPS-488
P can power up to eight
MM-4XPs, it can only power up to four HMS-10s (because of the HMS-10’s additional current draw).
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 adjustable bracket is also available for wall mounting the HMS-10 with downtilt or uptilt.
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.
HMS-10 with Fixed Mount Bracket
HMS-10 with Adjustable Mount Bracket
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CHAPTER 2: THE MPS-488P POWER SUPPLY

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The MPS-488P power supply delivers DC power and bal­anced audio to Meyer Sound loudspeakers that require a 48 V DC external power supply. The MPS-488
P is a multi-
channel, switched-mode, regulated power supply that occu­pies one space in a standard 19-inch rack. The MPS-488
P
was originally designed for use with the MM-4XP miniature loudspeaker. While the MPS-488
P can power up to eight
MM-4XPs, it can only power up to four HMS-10s (because of the HMS-10’s additional current draw).

THE MPS-488P FRONT PANEL

The MPS-488P front panel includes a power switch, LEDs for monitoring each loudspeaker channel, and fuses for each channel.
MPS-488P Power Supply Front Panel

AC Power

The MPS-488P is powered on and off with the AC Power switch.
Voltage and Load Current LEDs (1–8)
The Voltage and Load Current LEDs are useful for verifying whether each channel output has voltage and whether the connected loudspeakers are receiving DC power and audio.
MPS-488P with Four HMS-10s
NOTE: The MPS-488 power supply is available
in two models: the MPS-488
P, which is
equipped with Phoenix 5-pin male output connectors (recommended for use with the HMS-10), and the MPS-488
E, which is equipped with EN3 5-pin female
output connectors.
MPS-488
P Channel LEDs and Fuses
Voltage LEDs (1–8)
The blue Voltage LEDs indicate whether voltage is present for each channel output. These LEDs should be lit when the MPS-488
P is powered on. If a channel is not lit, its fuse may
need to be replaced. If a group of two Voltage LEDs is not lit (1–2, 3–4, 5–6 or 7–8), one of the four MPS-488
P internal
power supplies may have failed.
Load Current LEDs (1–8)
The green Load Current LEDs indicate whether a loud­speaker is connected to the channel and receiving power. As a channel’s audio signal increases, its LED glows brighter. If an LED is not lit, check that the channel’s Voltage LED is lit (the fuse is working) and verify the cable connec­tion to the loudspeaker.
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CHAPTER 2: THE MPS-488P POWER SUPPLY
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NOTE: Since HMS-10s should only be con-
nected to channel outputs 1, 3, 5, and 7, only the Load Current LEDs for channels with connected loudspeaker will light up (unlike the Voltage LEDs, which will all light up).
Fuse Slow Blow (1–8)
Each loudspeaker channel is protected with its own fuse. A maximum of one HMS-10 can be connected to each of four output channels (1, 3, 5, and 7); connecting more than that could cause a channel’s fuse to trip.
NOTE: When replacing fuses, make sure to
use a 2-amp, 250-volt slow-blow fuse (T2A­250V). These fuses are available from Meyer Sound (PN 420.027).

THE MPS-488P REAR PANEL

The MPS-488P rear panel includes an AC connector, eight channel inputs for receiving source audio, eight channel out­puts for delivering DC power and balanced audio, and seven Links switches for routing audio from inputs to outputs.
MPS-488P Power Supply Rear Panel
CAUTION: Because the MPS-488
a maximum of four HMS-10 loudspeakers, the HMS-10s should only be connected to channel out­puts 1, 3, 5, and 7. Do not use the even-numbered channel outputs.
P can power

Channel Inputs

Up to eight channels of balanced audio are received from the MPS-488
P’s eight channel inputs. The inputs are equipped
with XLR female connectors (pin 1, ground; pin 2, signal pos­itive; pin 3, signal negative). Make sure to use standard bal­anced XLR cables with all three pins connected on both ends.
MPS-488P Channel Inputs
Channel inputs default to being routed to their correspond­ing channel outputs but can also be routed to adjacent out­puts with the Link switches, though this affects their input impedance (see “Input Impedance for Linked Channel Inputs” on page 11).

Link Switches

Link switches determine how channel inputs are routed to channel outputs. When a channel input’s Link switch is OFF (set to the down position), the input is only routed to its cor­responding channel output: for example, channel input 1 routed to channel output 1. When a Link switch is ON (set to the up position), the input is routed to its corresponding channel output and the next adjacent channel output: for example, channel input 1 routed to channel outputs 1 and 2. If multiple, adjacent Link switches are enabled, the input is routed to each adjacent channel output: for example, chan­nel input 1 routed to channel outputs 1, 2, and 3.

AC Input

The MPS-488P has a PowerCon twist-lock AC connector (line, neutral/line, earth). The connector can accept different power cord types for outlets used throughout the world. Make sure to use the correct power cord for the AC power in your area. The MPS-488
P operates at an AC voltage range
of 100–240 V at 50–60 Hz.
10
MPS-488
P Audio Input
NOTE: Channel inputs are inactive when the
Link switch for their preceding channel input is enabled. Connections should not be made to inactive channel inputs.
Routing Audio Inputs with the Link Switches
The following examples illustrate the most common routing applications for the MPS-488 MPS-488
P can power a maximum of four HMS-10s.
P with four HMS-10s. The
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HMS-10 OPERATING INSTRUCTIONS
1 23 111 1
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X
X
X
4678
X
X
5
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1 23 115 5
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X
X
X
X
X
4 5 678
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1 2 135 74 5 6837
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X
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Routing One Input to Four Outputs
To route one audio input to four channel outputs:
Set all Link switches to ON.
Link 1 Link 2 Link 3 Link 4 Link 5 Link 6 Link 7
On On On On On On On
Routing Two Inputs to Two Outputs Each
To route two audio inputs to two channel outputs each:
1. Set Link switch 3 to OFF and all other switches to ON.
Link 1 Link 2 Link 3 Link 4 Link 5 Link 6 Link 7
On On On Off On On On
Input Impedance for Linked Channel Inputs
When a Link switch is enabled, the channel input’s unbuf­fered source signal is transmitted in parallel to each linked channel output. This causes the channel input’s impedance (normally 10 kOhms for one HMS-10) to be reduced for each linked channel output. For example:
1 channel output, 10 kOhm input impedance
2 channel outputs, 5 kOhm input impedance
4 channel outputs, 2500 ohms input impedance
To avoid distortion when linking channel inputs, make sure the source device can drive the total load impedance of the linked HMS-10 loudspeakers. The source device must be capable of delivering a minimum of 16 dBV (6.3 V rms into 600 ohms) to yield the maximum peak SPL over the operat­ing bandwidth of the loudspeaker.
NOTE: Most source devices are capable of
driving loads no smaller than 10 times their output impedance. To drive four HMS-10s linked from a single channel input, the source device should have an output impedance of approximately 200 ohms or less.
Routing Four Inputs to Four Separate Outputs
To route four audio inputs to four separate channel outputs:
Set all Link switches to OFF.
Link 1 Link 2 Link 3 Link 4 Link 5 Link 6 Link 7
Off Off Off Off Off Off Off

Channel Outputs

The MPS-488P’s eight channel outputs deliver DC power (48 V DC) and balanced audio to up to eight MM-4XPs or to up to four HMS-10s. The channel outputs use Phoenix 5-pin male connectors with three pins for balanced audio (posi­tive, negative, and shield) and two for DC Power (positive and negative). These pins are clearly labeled on the MPS-488 Belden 1502) wired for both DC power and balanced audio can be used to connect to each HMS-10.
MPS-488P Channel Outputs
P rear panel. A single composite cable (such as
CAUTION: Because the MPS-488
a maximum of four HMS-10 loudspeakers, the HMS-10s should only be connected to channel out­puts 1, 3, 5, and 7. Do not use the even-numbered channel outputs.
P can power
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CHAPTER 2: THE MPS-488P POWER SUPPLY
!
Earth ground
Chassis ground
Each MPS-488P comes with Phoenix 5-pin female cable connectors for assembling HMS-10 loudspeaker cables. For information on HMS-10 cable requirements, see “HMS-10 Current Draw and Cable Requirements” on page 15. For information on cables and cable accessories available from Meyer Sound, see Appendix A, “HMS-10 Accessories.” For information on cable assembly, see Appendix B, “HMS-10 Cable Assembly.”
CAUTION: When wiring cable connections for
the MPS-488
P channel outputs, it is extremely
important that each pin in the connector is wired cor­rectly. Make sure the 48 V DC from the MPS-488
P is
wired directly (and only) to the 48 V DC pins on the HMS-10 connector, and that the polarity is observed (negative to negative, positive to positive) to avoid damage to the loudspeaker. In addition, make sure the audio pins are wired correctly; polarity reversals for audio signals will affect system performance.
NOTE: The MPS-488 power supply is available
in two models: the MPS-488
P, which is
equipped with Phoenix 5-pin male output connectors (recommended for use with the HMS-10), and the MPS-488
E, which is equipped with EN3 5-pin female
output connectors.
Ultimate Short-Term Peak Current — A rating for fast-
reacting magnetic breakers.
Inrush Current — The spike of initial current encoun-
tered when powering on.
You can use the following table as a guide for selecting cable gauges and circuit breaker ratings for the system’s operating voltage.
Current Draw for MPS-488P with Four HMS-10s
Current Draw (Four HMS-10s)
Idle Current 1.16 A rms 1.00 A rms 1.26 A rms
Maximum Long-Term Continuous Current
Burst Current 9.84 A rms 5.40 A rms 10.76 A rms
Ultimate Short-Term Peak Current
Inrush Current 15.20 A peak 9.36 A peak 17.60 A peak
115
V AC
3.92 A rms 2.11 A rms 4.48 A rms
11.20 A peak 6.60 A peak 12.20 A peak
230
V AC
100
V AC
The minimum electrical service amperage required by an MPS-488 ous Current for all HMS-10s connected to the MPS-488
P is the sum of the Maximum Long-Term Continu-
P.
An additional 30 percent above the minimum amperage is recommended to prevent peak voltage drops at the service entry.

MPS-488P CURRENT DRAW

The current draw for the MPS-488P and its connected loud­speakers is dynamic and fluctuates as operating levels change. Since different cables and circuit breakers heat up at varying rates, it is important to understand the following types of current ratings and how they affect circuit breaker and cable specifications.
Idle Current — The maximum rms current during idle
periods.
Maximum Long-Term Continuous Current — The
maximum rms current during a period of at least 10 sec­onds. The Maximum Long-Term Continuous Current is used to calculate temperature increases for cables, to ensure that cable sizes and gauges conform to electrical code standards. This current rating is also used as a rat­ing for slow-reacting thermal breakers.
Burst Current — The maximum rms current during a
period of around one second. The Burst Current is used as a rating for magnetic breakers. It is also used for cal­culating the peak voltage drop in long AC cable runs according to the following formula:
V pk (drop) = I pk x R (cable total)
NOTE: For best performance, the AC cable
voltage drop should not exceed 10 V, or 10 percent at 115 V and 5 percent at 230 V. Make sure that even with AC voltage drops that the AC voltage always remains within the operating window.

SAFETY ISSUES

Pay close attention to these important electrical and safety issues.
The MPS-488P requires a grounded outlet.
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Page 13
Do not use a ground-lifting adapter or cut the AC cable
ground pin.
Keep all liquids away from the MPS-488P to avoid haz-
ards from electrical shock.
Do not operate the unit if the power cables are frayed or
broken.
HMS-10 OPERATING INSTRUCTIONS
13
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CHAPTER 2: THE MPS-488P POWER SUPPLY
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CHAPTER 3: THE HMS-10 LOUDSPEAKER

!
Red: DC power (+) Black: DC power (–)
White: audio (+)
Blue: audio (–) Audio shield

THE HMS-10 CONNECTOR

The HMS-10 receives DC power and balanced audio from a Phoenix 5-pin male connector on its top panel. The connec­tor’s five pins include two for DC power (negative and posi­tive) and three for balanced audio (shield, negative, and positive). These pins are clearly labeled on the HMS-10 top panel. The connector accepts conductors up to 12 AWG (American Wire Gauge) or 2.5 mm HMS-10 requires 48 V of DC power.
HMS-10 Connector
A single composite cable (such as Belden 1502) wired for both DC power and balanced audio can connect HMS-10 loudspeakers to the MPS-488
Each HMS-10 loudspeaker comes with one Phoenix 5-pin female cable connector for making loudspeaker cables. For information on HMS-10 cable requirements, see “HMS-10 Current Draw and Cable Requirements” on page 15. For information on cables and cable accessories available from Meyer Sound, see Appendix A, “HMS-10 Accessories.” For information on cable assembly, see Appendix B, “HMS-10 Cable Assembly.”
2
. To function properly, the
P’s channel outputs.

Wiring HMS-10 Loudspeaker Cables with Belden 1502 Cable

When wiring HMS-10 loudspeaker cables with Belden 1502 cable, use the conventions in Table 1. The red and black wires in the Belden 1502 cable have a thicker gauge than the other three wires and should be used for DC power. The blue, white, and shield wires are shielded together and should be used for audio.
Belden 1502 Composite Cable
Table 1: Wiring HMS-10 Loudspeaker Cables with Belden 1502
Wire Gauge Gauge
Red DC power, positive (+) 18 AWG
Black DC power, negative (–) 18 AWG
White Balanced audio, positive (+) 22 AWG
Blue Balanced audio, negative (–) 22 AWG
Shield Balanced audio, shield 24 AWG
Both ends of the HMS-10 loudspeaker cable should be wired so that the pins in the HMS-10 connector align with those in the MPS-488 “Channel Inputs” on page 10).
P channel output connector (see
CAUTION: When wiring HMS-10 loudspeaker
cables, make sure each pin in the connector is wired correctly to avoid damage to the loudspeaker and polarity reversal, which will affect system perfor­mance.

HMS-10 Current Draw and Cable Requirements

Each HMS-10 loudspeaker draws a maximum current of
3.31 A rms and 3.45 A peak from the 48 V DC output of the MPS-488
P. The current draw for the HMS-10 is dynamic
and fluctuates as operating levels change. The cabling between the HMS-10 and the MPS-488
P adds resistance
and hence causes a voltage drop at the loudspeaker. Because lower voltages compromise peak SPL, and in some cases frequency response, cable resistance should be minimized.
NOTE: When connecting an HMS-10 to an
MPS-488
P channel output, the total cable
resistance should not exceed 2 ohms.
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CHAPTER 3: THE HMS-10 LOUDSPEAKER
XXXXXXX
X
!
Cable Lengths and Cable Gauges for HMS-10s
When connecting an HMS-10 to an MPS-488P channel out­put, you can use cable lengths up to 150 feet with only 1 dB of peak SPL loss using 18 AWG wire. Longer cable lengths are possible with heavier wire gauges (see Table 2 and Table 3).
Table 2: HMS-10 Loudspeaker Cable Lengths (AWG)
Cable Gauge Resistance
(Ω/ft)
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 3: HMS-10 Loudspeaker Cable Lengths (European)
Cable Gauge Resistance
(Ω/m)
2.50 mm
1.50 mm
1.00 mm
0.75 mm
2
2
2
2
0.0052 157 m
0.01076 87 m
0.02087 45 m
0.03307 27 m
Approximate
Max. Length
Approximate
Max. Length
4. Connect up to four HMS-10 loudspeakers to the MPS-488
P channel outputs. Connect only to channel
outputs 1, 3, 5, and 7. Use a composite cable (such as Belden 1502) outfitted with Phoenix connectors and wired for both DC power and balanced audio.
The maximum cable length for an HMS-10 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).
NOTE: For long cable runs, use a large cable
gauge for DC power and a separate balanced
audio cable for audio.
CONNECTING HMS-10 LOUDSPEAKERS TO THE MPS-488
To connect HMS-10 loudspeakers to the MPS-488P:
1. Power off the MPS-488
2. Connect audio sources (from a mixer or processor) to the MPS-488
3. Use the MPS-488 to the desired channel outputs. For more information, see “Link Switches” on page 10.
P
P.
P channel inputs. Use balanced XLR cables.
P Link switches to route channel inputs
TIP: You can also use two separate cables for
HMS-10 loudspeaker connections: 2-conductor cable for DC power and 3-conductor cable for bal­anced audio, both attached to a single Phoenix con­nector on each cable end.
CAUTION: Make sure the HMS-10 loud-
speaker cables are wired correctly. For details on assembling loudspeaker cables, see Appendix B, “HMS-10 Cable Assembly.”
5. Power on the MPS-488
P and monitor the LEDs on the
front panel to verify connections (for more information, see “Voltage and Load Current LEDs (1–8)” on page 9).
6. Enable output from the audio sources (from the mixer or processor) connected to the MPS-488
P.
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Page 17

CHAPTER 4: MOUNTING THE HMS-10

5.60
[142.24 mm]
3.00
[76.20 mm]
3.94
[100.00 mm]
5.10
[129.54 mm]
4.80
[121.92 mm]
0.50
[12.70 mm]
3.94
[100.00 mm]
Wall Plate
Loudspeaker
Plate
The HMS-10 comes standard with a fixed bracket; an adjustable bracket is also available for wall mounting the HMS-10 with downtilt or uptilt. This chapter describes how to mount the HMS-10 with these two mounting options.

IMPORTANT SAFETY CONSIDERATIONS

When installing 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.

MOUNTING THE HMS-10 WITH THE FIXED MOUNT BRACKET

The HMS-10 can be mounted with a fixed mount bracket at a fixed angle of 0 degrees. The low profile bracket allows the HMS-10 to be mounted less than 0.6” (15 mm) from the wall.
Use mounting hardware appropriate for the surface
where the loudspeaker will be installed.
Make sure bolts are tightened securely. Meyer Sound
recommends using Loctite
®
on bolt threads and safety
cables.
Inspect mounting and rigging hardware regularly. Imme-
diately replace any worn or damaged components.
Fixed Bracket (OmniMount 17FM-F)
NOTE: When ordering the HMS-10 with the
fixed mount bracket, the bracket is factory
installed and already attached to the loudspeaker.
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CHAPTER 4: MOUNTING THE HMS-10
Mounting holes
To mount the HMS-10 with the fixed mount bracket:
1. Disassemble the fixed bracket by removing the two bot­tom screws. Separate the wall plate from the loud­speaker plate (labeled “Monitor”). Leave the loudspeaker plate attached to the HMS-10.
– Drill two 1/8” pilot holes, 2.0 inches deep, at the
marked locations.
– Secure the wall plate to the wall with the two wood
screws.
To mount the HMS-10 on a concrete wall:
– Mark two mounting holes on the wall using the wall
plate’s center holes as a guide.
– Drill two 5/16” pilot holes, 2.5 inches deep, at the
marked locations.
– Install the wall anchors in the pilot holes so they are
flush with the wall surface.
– Secure the wall plate to the wall with the wood
screws.
3. Hang the HMS-10 on the wall by carefully sliding the loudspeaker plate (attached to the HMS-10) down into the wall plate’s grooves.
4. For additional stability, secure the loudspeaker plate to the wall plate with the two bottoms screws previously removed.
2. Choose one of the following mounting options:
To mount the HMS-10 on a wall with a wood stud:
– Locate the wall stud and mark two holes on the wall
using the wall plate’s center holes as a guide.
NOTE: When mounting the HMS-10 in a soffit,
allow at least 3 inches above the unit for the mounting bracket to slide into place. The extra space also provides the necessary ventilation for the HMS-10’s amplifier and heat sink.
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HMS-10 OPERATING INSTRUCTIONS
1.84
[46.74 mm]
5.16
[131.06 mm]
4.75
[120.65 mm]
3.00
[76.20 mm]
3.94
[100.00 mm]
3.94
[100.00 mm]
+5°/–13°
Wall Plate
Loudspeaker
Plate
Mounting slots
3/8”

MOUNTING THE HMS-10 WITH THE ADJUSTABLE MOUNT BRACKET

The HMS-10 can be wall mounted with the adjustable mount bracket at downtilt angles up to 13 degrees and uptilt angles up to 5 degrees (uptilt).
2. Choose one of the following mounting options:
To mount the HMS-10 on a wall with a wood stud:
– Locate the stud and mark two mounting holes on the
wall using the wall plate’s center mounting slots as a guide.
– Drill two 1/8” pilot holes, 2.0 inches deep, at the
marked locations.
– Install the wood screws in the pilot holes. Leave the
screws extended approximately 3/8” from the wall surface.
Adjustable Bracket (OmniMount 17FM-T)
NOTE: When ordering the HMS-10 with the
adjustable mount bracket, the bracket is fac­tory installed and already attached to the loud­speaker.
To mount the HMS-10 with the adjustable mount bracket:
1. Disassemble the adjustable bracket by removing the four side screws and washers. Separate the wall plate from the loudspeaker plate (labeled “Monitor”). Leave the loudspeaker plate attached to the HMS-10.
To mount the HMS-10 on a concrete wall:
– Mark two mounting holes on the wall using the wall
plate’s center mounting slots as a guide.
– Drill two 5/16” pilot holes, 2.5 inches deep, at the
marked locations.
– Install the wall anchors in the pilot holes so they are
flush with the wall surface.
– Install the wood screws in the wall anchors. Leave
the screws extended approximately 3/8” from the wall surface.
3. Reattach the wall plate to the loudspeaker plate with the previously removed four washers and screws. The wash­ers should be placed on the outside of the loudspeaker plate.
4. Hang the mounting bracket, with the HMS-10 attached, on the wall screws.
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CHAPTER 4: MOUNTING THE HMS-10
-13°
80°
24.00
[610 mm]
15.00
[381 mm]
36.00
[914 mm]
3.00
[76 mm]
13.50
[343 mm]
80°
15.00
[381 mm]
5. Adjust the tilt of the HMS-10 from –13 degrees (downtilt) to +5 degrees (uptilt). Tighten the four side screws to secure the HMS-10.
NOTE: Make sure the four side screws are
completely tightened to ensure that the
HMS-10 won’t move from its desired position.
NOTE: When mounting the HMS-10 in a soffit,
allow at least 3 inches above the unit to pro­vide the necessary ventilation for its amplifier and heat sink.

MOUNTING HMS-10S IN SOFFITS

When mounting the HMS-10 in a soffit, use a soffit that mea­sures at least 24" wide by 36" high by 15" deep (610 mm x 914 mm x 381 mm). This ensures that the loudspeaker's full 80-degree horizontal by 80-degree vertical horn coverage will reach the listener. If the soffit is deeper than 15”, or the HMS-10 is angled down, the overall height of the soffit should be increased to accommodate the horn’s vertical coverage.
TIP: If more than 5 degrees of uptilt are needed
for the HMS-10, the adjustable bracket can be oriented upside down (mount the wall plate on the wall upside down and remove and reattach the loud­speaker plate to the HMS-10 also upside down). This orientation allows uptilt angles up to 13 degrees.
HMS-10 in Soffit, Top View
In addition, make sure to allow at least 3 inches above the HMS-10 for the mounting bracket to slide into place. The extra space also provides the necessary ventilation for the unit’s amplifier and heat sink.
HMS-10 in Soffit, Side View
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APPENDIX A: HMS-10 ACCESSORIES

The following HMS-10 accessories are available from Meyer Sound.
HMS-10 Accessories
Part Number Accessory Notes
09.183.001.01
09.183.001.02
420.027
484.065 Phoenix 5-pin female cable mount connector Connects to MPS-488
524.014 1502R (regular) bulk cable 500-ft spool, no connectors
524.015 1502P (plenum) bulk cable 500-ft spool, no connectors
MPS-488P external power supply with U.S. power cord
MPS-488P external power supply with CE power cord
MPS-488 Fuse Replacement
NOTE: 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 the 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 “HMS-10 Current Draw and Cable Requirements” on page 15.
Powers up to four HMS-10s; connect only to channel outputs 1, 3, 5, and 7
Powers up to four HMS-10s; connect only to channel outputs 1, 3, 5, and 7
2-amp, 250-volt slow-blow fuse (T2A-250V)
P channel output connectors
and HMS-10 loudspeaker connectors
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APPENDIX A: HMS-10 ACCESSORIES
22
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APPENDIX B: HMS-10 CABLE ASSEMBLY

1”
0.275”
Pin #1 Black 48 V DC (–)
Pin #2 Red 48 V DC (+)
Pin #3 Shield Audio shield
Pin #4 Blue Audio (–)
Pin #5 White Audio (+)
Connector side upSide (cable attached)

ASSEMBLING PHOENIX-TO-PHOENIX LOUDSPEAKER CABLES

To connect the HMS-10 loudspeaker directly to the MPS-488P power supply, 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” and then strip the black, red, blue, and white wires by .275”.
2. Insert the five exposed conductors, from one end of the cable, into the five cable holes in one of the Phoenix connectors. Use the following wiring scheme.
Phoenix 5-Pin Female Cable Mount Connector
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APPENDIX B: HMS-10 CABLE ASSEMBLY
Tighten screws
3. Secure the conductors by tightening the five screws in the Phoenix connector.
4. Repeat the previous steps and attach the other end of the cable to the other Phoenix connector.
5. Verify the wiring polarity is correct for both connectors.
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APPENDIX C: HMS-10 SPECIFICATIONS

HMS-10 Specifications
ACOUSTICAL
Operating Frequency Range 55 Hz – 18 kHz
Note: Recommended maximum operating frequency range. Response depends on loading condi­tions and room acoustics.
Frequency Response 58 Hz – 17.5 kHz ±4 dB
Note: Measured free-field with pink noise at 1 meter, 1/3rd octave resolution.
Maximum Peak SPL 126 dB
Note: Measured free-field with music, referred to 1 meter.
Dynamic Range 100 dB
Note: Taken from peak SPL, referred to A-wtd noise floor.
Phase Response 290 Hz – 18 kHz ±45°
Coverage 80° symmetrical
Acoustical Crossover 2.5 kHz
Note: At this frequency, the transducers produce equal sound pressure levels.
TRANSDUCERS
Low Frequency One 10" low-frequency long excursion cone driver
High Frequency One 2" high-frequency diaphragm compression driver
CONNECTOR
Audio/Power Connector Single Phoenix 5-pin male (3 pins for balanced audio, 2 pins for DC power)
Power Wiring Pin 1: 48 V DC –
Pin 2: 48 V DC +
Audio Wiring Pin 3: Chassis/earth through 220 kΩ, 1000 pF, 15 V clamp network to provide virtual ground lift at
audio frequencies Pin 4: Signal – Pin 5: Signal +
AUDIO INPUT
Type Differential, electronically balanced
Maximum Common Mode Range ±15 V DC, clamped to earth for voltage transient protection
Input Impedance 10 kΩ differential between pins 4 (–) and 5 (+)
DC Blocking Differential DC blocking on input 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 6.0 dBV (2.0 V rms, 2.8 V peak) continuous average is typically the onset of limiting for noise and
music
Input Level Audio source must be capable of producing +16 dBV (6.3 V rms, 9.0 V peak) into 600 Ω to produce
the maximum peak SPL over the operating bandwidth of the loudspeaker
AMPLIFIER
Amplifier Type Two-channel complementary MOSFET output stages (class AB/Bridged)
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APPENDIX C: HMS-10 SPECIFICATIONS
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HMS-10 Specifications
Output Power 300 W total
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%
Load Capacity 4 Ω low channel, 12 Ω high channel
Cooling Convection
DC POWER
Voltage Requirement 48 V DC
Current Draw Note: At 48 V DC.
Idle Current 0.35 A rms
Maximum Long-Term
2.03 A rms
Continuous Current
Burst Current 3.31 A rms
Ultimate Short-Term
3.45 A peak
Peak Current
Inrush Current 4.55 A peak
PHYSICAL
Enclosure Multi-ply hardwood
Finish Black textured
Protective Grille Acoustically transparent, black cloth-covered frame
Mounting Fixed bracket or optional adjustable bracket with 13° downtilt and 5° uptilt
Dimensions 15.5” W x 19.5” H x 12.5” D without mounting bracket
(394 mm x 495 mm x 317 mm)
Weight 29.1 lbs (13.2 kg) with mounting bracket
ENVIRONMENTAL
Operating Temperature 0° C to +45° C
Non Operating Temperature <–40° C or >+75° C
Humidity To 95% at 35° C
Operating Altitude To 4600 m (15,000 ft)
Non operating Altitude To 95% at 35° C
Shock 30 g 11 msec half-sine on each of 6 sides
Vibration 10 Hz – 55 Hz (0.010 m peak-to-peak excursion)

HMS-10 COMPLIANCE

26
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HMS-10 DIMENSIONS

5.60
[142 mm]
13.05
[331 mm]
12.48
[317 mm]
6.87
[174 mm]
7.42
[188 mm]
3.00
[76 mm]
15.50
[394 mm]
19.50
[495 mm]
15°
7.80
[198 mm]
5.00
[127 mm]
14.34
[364 mm]
5.58
[142 mm]
12.48
[317 mm]
6.87
[174 mm]
7.42
[188 mm]
3.00
[76 mm]
15.50
[394 mm]
19.50
[495 mm]
15°
7.80
[198 mm]
5.00
[127 mm]
HMS-10 OPERATING INSTRUCTIONS
HMS-10 Dimensions with Fixed Bracket (OmniMount 17FM-F)
HMS-10 Dimensions with Adjustable Bracket (OmniMount 17FM-T)
27
Page 28
APPENDIX C: HMS-10 SPECIFICATIONS
28
Page 29

APPENDIX D: MPS-488 SPECIFICATIONS

NOTE: The MPS-488 was originally designed for use with the MM-4XP miniature loudspeaker. While the
MPS-488 can power up to eight MM-4XPs, it can only power up to four HMS-10s (because of the HMS-10’s
additional current draw).
MPS-488 Specifications
FRONT PANEL
LEDs Eight LEDs to indicate output voltage
Eight LEDs to indicate load current
REAR PANEL
Audio Inputs Eight channels of XLR female connectors with Link switches to route to outputs
Outputs MPS-488
anced audio, two pins for DC power); MPS-488 Note: Because the MPS-488 can power a maximum of four HMS-10 loudspeakers, the HMS-10s should only be connected to channel outputs 1, 3, 5, and 7. Do not use the even-numbered chan­nel outputs.
Output Voltage Eight channels of 48 V DC (2.0 A, fuse protected)
AC POWER
AC Connector PowerCon
Voltage Selection Automatic
Safety Agency Rated Operating Voltage
Turn On/Turn Off Points 90–264 V AC; 50/60 Hz
Current Draw Note: For four HMS-10 loudspeakers (connected to channels 1, 3, 5, and 7).
Idle Current 1.16 A rms (115 V AC); 1.00 A rms (230 V AC); 1.26 A rms (100 V AC)
Maximum Long-Term Continuous Current
Burst Current 9.84 A rms (115 V AC); 5.40 A rms (230 V AC); 10.76 A rms (100 V AC)
Ultimate Short-Term Peak Current
Inrush Current 15.20 A peak (115 V AC); 9.36 A peak (230 V AC); 17.60 A peak (100 V AC)
PHYSICAL
Dimensions 1RU high
Weight 15.5 lbs (6.6 kg)
ENVIRONMENTAL
Operating Temperature
Non operating Temperature
Humidity
Operating Altitude
100–240 V AC; 50/60 Hz
Note: No automatic turn-off voltages. Voltages above 265 V AC are fuse protected but may cause permanent damage to the power supply. Voltages below 90 V AC may result in intermittent opera­tion.
3.92 A rms (115 V AC); 2.11 A rms (230 V AC); 4.48 A rms (100 V AC)
11.20 A peak (115 V AC); 6.60 A peak (230 V AC); 12.20 A peak (100 V AC)
19.00” W x 1.73” H x 13.57” D (482.60 mm x 43.94 mm x 348.78 mm)
0° C to +45° C
<–40° C or >+75° C
To 95% at 35° C
To 4600 m (15,000 ft)
P model includes eight channels of Phoenix 5-pin male connectors (three pins for bal-
E model available with EN3 5-pin female connectors
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APPENDIX D: MPS-488 SPECIFICATIONS
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19.00
[482.60 mm]
16.90
[429.26 mm]
13.57
[344.78 mm]
14.07
[357.40 mm]
1.73
[43.94 mm]
MPS-488 Specifications
Non Operating Altitude
Shock
Vibration

MPS-488 COMPLIANCE

MPS-488 DIMENSIONS

To 95% at 35° C
30 g 11 msec half-sine on each of 6 sides
10 Hz – 55 Hz (0.010 m peak-to-peak excursion)
MPS-488 Dimensions
30
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Page 32
Meyer Sound Laboratories Inc. 2832 San Pablo Avenue Berkeley, CA 94702
www.meyersound.com T: +1 510 486.1166 F: +1 510 486.8356
Meyer Sound. All rights reserved.
HMS-10 Operating Instructions,
© 2009
PN 05.198.011.01 A
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