Meyer STELLA-188, STELLA-8C, STELLA-4C, STELLA-4 Operating Instructions Manual
OPERATING INSTRUCTIONS
Stella-4 Constellation Installation Loudspeaker
Stella-4C Constellation Installation Ceiling-Mount Loudspeaker
Stella-8C Constellation Installation Ceiling-Mount Loudspeaker
Stella-188 Power Supply
ULTRA
Keep these important operating instructions.
Check www.meyersound.com for updates.
© 2011, 2015
Meyer Sound. All rights reserved.
Stella Operating Instructions, PN 05.161.005.01 B3
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.
Stella and all alpha-numeric designations for Meyer Sound products and accessories are trademarks of Meyer Sound. Constellation,
Meyer Sound, and the Meyer Sound wave logo 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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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.
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CONTENTS
Chapter 1: Introduction 7
How to Use this Manual 7
Stella Loudspeakers 7
Stella Installation Loudspeaker 7
Stella-4C Installation Loudspeaker 8
Stella-8C Installation Loudspeaker 8
Stella-188 Power Supply 8
Chapter 2: Connecting Stella Loudspeakers 9
Stella Connector 9
Wiring Stella Loudspeaker Cables with Belden 1502 Cable (or Equivalent) 9
Stella-188 Power Supply 10
Stella-188 Front Panel 10
Stella-188 Rear Panel 10
Connecting Stella Loudspeakers to the Stella-188 14
Chapter 3: Stella Mounting Options 17
Important Safety Considerations 17
Using a Safety Cable with the Stella-4 17
Mounting the Stella-4 17
Mounting the Stella-4 with the MMB Bracket 18
Mounting the Stella-4 with the MMB Bracket and OmniMount 20.5 ST 18
Mounting the Stella-4 with the MAMB Adjustable Bracket 18
Mounting the Stella-4C 19
Installing the Stella-4C in a Backbox 19
Mounting the Stella-8C 20
Installing the Stella-8C in a Backbox 20
Appendix A: Stella Specifications 21
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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 system with Stella™ loudspeakers. 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, and
could cause delays or other problems.
Information and specifications are subject to change.
Updates and supplementary information are available at
www.meyersound.com
.
STELLA LOUDSPEAKERS
The Stella family of loudspeakers was engineered primarily
®
for use in Meyer Sound’s Constellation
electroacoustic
architecture. The compact, self-powered loudspeakers are
ideally suited for applications requiring exceptional audio
performance, uniform directional control, low-profile mounting solutions, and remote power supplies.
Stella loudspeakers include onboard amplification and processing and exhibit the same high intelligibility, low distortion, and flat frequency and phase responses as other Meyer
Sound loudspeakers.
Stella Installation Loudspeaker
The Stella-4 installation loudspeaker is comprised of a
4-inch cone transducer housed in a compact aluminum die
cast enclosure. It delivers an impressive frequency range of
100 Hz to 18 kHz and a maximum peak SPL of 108 dB at
1 meter.
Meyer Sound Technical Support is available at:
■ Te l: +1 510 486.1166
■ Te l: +1 510 486.0657 (after hours support)
■ Web: www.meyersound.com/support
■ Email: techsupport@meyersound.com
Stella-4 Loudspeaker Mounted with MAMB Adjustable Bracket
The Stella-4 can be easily mounted on ceilings or walls with
mounting accessories available from Meyer Sound and
third-party manufacturers.
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CHAPTER 1: INTRODUCTION
Stella-4C Installation Loudspeaker
Stella-4C Ceiling Mount Installation Loudspeaker
The Stella-4C ceiling mount installation loudspeaker offers
the same sonic capabilities as the Stella-4 in a package specifically designed for flushmount ceiling and wall applications, where it can be mounted in standard backboxes for
8-inch drivers (with a minimum depth of 6.5 inches). The
Stella-4C is housed in an aluminum die cast enclosure with
a rear heat sink.
Stella-8C Installation Loudspeaker
Stella-188 Power Supply
Stella-188 Power Supply
The required method of delivering DC power and balanced
audio to Stella loudspeakers is with the Stella-188 power
supply. The single-space rack unit can power up to 16
Stella-4 or Stella-4C loudspeakers, or up to eight Stella-8C
loudspeakers. The Stella-188 receives eight channels of balanced audio from its 25-pin D-sub connector and outputs
the audio, along with 18 V of DC power, to its five-pin Phoenix connectors. Each Channel Output can drive up to two
Stella-4/Stella-4C loudspeakers (or one Stella-8C loudspeaker). The Stella-188 front panel has LEDs for monitoring
voltage output and connectivity to the Stella loudspeakers.
Stella loudspeakers receive balanced audio and DC power
from a five-pin Phoenix-style connector on their rear panel.
Meyer Sound's patented Iso-Input™ transformer-isolated
differential inputs yield a high common-mode signal rejection ratio (CMRR). Because Stella loudspeakers have been
optimized to tolerate voltage drops of up to 30 percent, they
can accommodate light-gauge cables and long cable runs.
Stella-8C Ceiling Mount Installation Loudspeaker
The Stella-8C ceiling mount installation loudspeaker delivers
similar acoustical performance as the Stella-4 and Stella-4C
but with expanded output capability and wider coverage.
The unit's 8-inch coaxial cone and 0.75-inch tweeter transducers produce a maximum peak SPL of 117 dB at 1 meter
over a wide frequency range of 100 Hz to 18 kHz. Housed in
an aluminum, die cast enclosure with a rear heat sink, the
Stella-8C can be flush-mounted in ceilings and walls with
standard backboxes for 8-inch drivers (with a minimum
depth of 6.5 inches).
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CHAPTER 2: CONNECTING STELLA LOUDSPEAKERS
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Red: DC power (+)
Black: DC power (–)
White: audio (+)
Blue: audio (–)
Shield drain: audio shield
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STELLA CONNECTOR
Stella loudspeakers receive DC power and balanced audio
from a five-pin Phoenix connector on their rear 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 Stella
rear panel. The connector accepts conductors up to
12 AWG (American Wire Gauge) or 2.5 mm
properly, Stella loudspeakers require DC power in the range
of 12–18 V DC.
Stella Connector
A single composite cable (such as Belden 1502R) wired for
both DC power and balanced audio can connect each Stella
loudspeakers to one of the Stella-188’s eight Channel Outputs.
Each Stella loudspeaker comes with one Phoenix cable
connector for making loudspeaker cables. For information
on cable requirements, see “Cable Lengths and Cable
Gauges for Stella Loudspeakers” on page 14.
CAUTION: Do not connect Stella loudspeakers
to voltages above 18 V DC. Receiving voltages
above 18 V DC will permanently damage Stella loudspeakers.
CAUTION: For installations comprising both
Stella loudspeakers and 48 V DC loudspeakers, make sure that Stella loudspeakers are only connected to a Stella-188 power supply. Connecting
Stella loudspeakers to a 48 V DC power supply will
permanently damage the Stella loudspeakers.
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. To function
Wiring Stella Loudspeaker Cables with Belden 1502 Cable (or Equivalent)
The most convenient method of wiring Stella 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 Stella loudspeaker cables with Belden 1502, use the conventions in
Table 1. The red and black wires are 18 AWG, thicker than
the other three wires, and should be used for DC power (for
maximum cable lengths, see “Cable Lengths and Cable
Gauges for Stella Loudspeakers” on page 14). The blue,
white, and shield drain wires are shielded together and
should be used for audio.
Belden 1502 Composite Cable
Table 1: Wiring Stella Loudspeaker Cables with Belden 1502R
Wire Signal 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 drain Balanced audio, shield 24 AWG
CAUTION: When wiring Stella loudspeaker
cables, it is extremely important that each pin
be wired correctly. Make sure the DC from the external power supply is wired directly (and only) to the DC
pins on the Stella 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.
CAUTION: When wiring Stella loudspeaker
cables, make sure each pin in the connector is
wired correctly to avoid damage to the loudspeaker
and polarity reversal, which can affect system performance.
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