OPERATING INSTRUCTIONS INDUSTRIAL SERIES Stella-4 Constellation Installation Loudspeaker Stella-4C Constellation Installation Ceiling-Mount Loudspeaker Stella-8C Constellation Installation Ceiling-Mount Loudspeaker Stella-188 Power Supply Keep these important operating instructions. Check www.meyersound.com for updates.
DECLARATION OF CONFORMITY ACCORDING TO ISO/IEC GUIDE 22 AND EN 45014 Manufacturer’s Name: Meyer Sound Laboratories Inc.
FEDERAL COMMUNICATIONS COMMISSION (FCC) STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
SYMBOLS USED These symbols indicate important safety or operating features in this booklet and on the chassis: ! Dangerous voltages: risk of electric shock Important operating instructions Frame or chassis Protective earth ground Pour indiquer les risques résultant de tensions dangereuses Pour indequer important instructions Masse, châssis Terre de protection Warnung vor gefährlicher elektrischer Spannung Wichtige Betriebsanweisung oder Gebrauchsanleitung Rahmen oder Gehäuse Masse Schutzleiter
SAFETY SUMMARY English ■ ■ ■ To reduce the risk of electric shock, disconnect 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.
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CONTENTS Chapter 1: Introduction How to Use this Manual Stella Loudspeakers Stella-4C Installation Loudspeaker Stella-4C Installation Loudspeaker Stella-8C Installation Loudspeaker Stella-188 Power Supply Chapter 2: Connecting Stella Loudspeakers Stella Connector Wiring Stella Loudspeaker Cables with Belden 1502 Cable (or Equivalent) Stella-188 Power Supply Stella-188 Front Panel Stella-188 Rear Panel Connecting Stella Loudspeakers to the Stella-188 Chapter 3: Stella Mounting Options Important Safety Con
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CHAPTER 1: INTRODUCTION HOW TO USE THIS MANUAL STELLA LOUDSPEAKERS 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. The Stella family of loudspeakers was engineered primarily for use in Meyer Sound’s Constellation® electroacoustic architecture.
CHAPTER 1: INTRODUCTION Stella-4C Installation Loudspeaker Stella-188 Power Supply Stella-188 Power Supply 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 4 inches).
CHAPTER 2: CONNECTING STELLA LOUDSPEAKERS 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 mm2.
CHAPTER 2: CONNECTING STELLA LOUDSPEAKERS STELLA-188 POWER SUPPLY Voltage LEDs (1–8) The Stella-188 was designed to deliver eight channels of balanced audio and DC power to up to 16 Stella-4/Stella-4C loudspeakers (or to up to eight Stella-8C loudspeakers). The Stella-188 is a switched-mode, regulated power supply that occupies one space in a standard 19-inch rack. The blue Voltage LEDs indicate whether voltage is present for each of the eight loudspeaker channels.
STELLA OPERATING INSTRUCTIONS Stella-188 Current Draw Current Draw for Stella-188 with 16 Stella-4s/Stella-4Cs The current draw for the Stella-188 is dynamic and fluctuates as operating levels change for the connected loudspeakers. 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.
CHAPTER 2: CONNECTING STELLA LOUDSPEAKERS Safety Issues Audio Input Pay close attention to these important electrical and safety issues. Up to eight channels of balanced audio are received via the Stella-188’s Audio Input connector. Each of the eight audio channels is hard-wired to the corresponding Stella-188 Channel Outputs, thereby allowing for easy distribution of discrete audio channels for Constellation installations. ■ The Stella-188 requires a grounded outlet.
STELLA OPERATING INSTRUCTIONS Channel Outputs (1–8) Current Draw for Stella-4 and Stella-4C Loudspeakers The eight Channel Outputs deliver DC power (18 V DC) and balanced audio to up to eight loudspeaker channels. Each Channel Output can drive up to two Stella-4/Stella-4C loudspeakers (or one Stella-8C loudspeaker). The Channel Outputs use five-pin Phoenix connectors with three pins for balanced audio (positive, negative, and shield) and two for DC Power (positive and negative).
CHAPTER 2: CONNECTING STELLA LOUDSPEAKERS Cable Lengths and Cable Gauges for Stella Loudspeakers CONNECTING STELLA LOUDSPEAKERS TO THE STELLA-188 When connecting a single Stella-4 or Stella-4C to a Stella-188 Channel Output, you can use cable lengths up to 300 feet with only 1 dB of peak SPL loss with 18 AWG wire. When connecting two Stella-4s or Stella-4Cs (or one Stella-8C), equivalent lengths are possible with heavier wire gauges (see Table 3 and Table 4).
STELLA OPERATING INSTRUCTIONS Figure 1: Stella-188 with Eight Stella-4s (One Unit Connected to Each Channel Output) Figure 2: Stella-188 with 16 Stella-4s (Two Units Connected to Each Channel Output) Figure 3: Stella-188 with Eight Stella-4s (Two Units Connected to Outputs 1, 2, 7, and 8) and Four Stella-8Cs (One Unit Connected to Outputs 3–6) 17
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CHAPTER 3: STELLA MOUNTING OPTIONS IMPORTANT SAFETY CONSIDERATIONS MOUNTING THE STELLA-4 When installing Meyer Sound loudspeakers, the following precautions should always be observed: The Stella-4 can be mounted with the following bracketing options: ■ 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 method for their application.
CHAPTER 3: STELLA MOUNTING OPTIONS Mounting the Stella-4 with the MMB Bracket To mount the Stella-4 with the MMB bracket: 1. Separate the MMB wall plate from the MMB loudspeaker plate by unscrewing the thumbscrew. 2. Mount the MMB wall plate to the wall with one of the following options. Position the wall plate so its hinges are pointing up. ■ ■ Mount directly to the wall surface using screws in the four corner holes. Use fastening hardware appropriate for the mounting surface.
STELLA OPERATING INSTRUCTIONS 4. Attach the pivot plate assembly to the wall plate using the screw and washers previously removed. Tighten the screw. MOUNTING THE STELLA-4C The Stella-4C can be mounted flush in ceilings and walls with any standard 8-inch backbox (such as the Atlas BMT95-8 and Lowell CP-84 and XCP-84) with a minimum depth of 6.5 inches. Installing the Stella-4C in a Backbox To install the Stella-4C in a standard 8-inch backbox: 1.
CHAPTER 3: STELLA MOUNTING OPTIONS MOUNTING THE STELLA-8C ■ The Stella-8C can be mounted flush in ceilings and walls with any standard 8-inch backbox (such as the Atlas BMT95-8 Series and Lowell CP-87 and XCP-87) with a minimum depth of 6.5 inches. Stella-8C Mounted in Third-Party Backbox Installing the Stella-8C in a Backbox To install the Stella-8C in a standard 8-inch backbox: 1. Mount the backbox in the ceiling or wall according the manufacturer's instructions. 2.
APPENDIX A: STELLA SPECIFICATIONS STELLA-4 SPECIFICATIONS Operating Frequency Range 100 Hz – 18 kHz Note: Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics. Frequency Response 115 Hz – 16 kHz ±4 dB Note: Measured free-field with pink noise at 1 meter, 1/3rd octave resolution.
APPENDIX A: STELLA SPECIFICATIONS STELLA-4C SPECIFICATIONS Operating Frequency Range Frequency Response Maximum Peak SPL Phase Response Coverage Transducer Voltage Requirement Audio/Power Connector Input Impedance 100 Hz – 18 kHz Note: Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics. 115 Hz – 16 kHz ±4 dB Note: Measured free-field with pink noise at 1 meter, 1/3rd octave resolution.
STELLA OPERATING INSTRUCTIONS STELLA-8C SPECIFICATIONS Operating Frequency Range 100 Hz – 18 kHz Note: Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics. Frequency Response 115 Hz – 16 kHz ±4 dB Note: Measured free-field with pink noise at 1 meter, 1/3rd octave resolution. Maximum Peak SPL Phase Response Coverage Transducer Voltage Requirement Audio/Power Connector Input Impedance 117 dB Note: Measured free-field with music and referred to 1 meter.
APPENDIX A: STELLA SPECIFICATIONS STELLA-188 SPECIFICATIONS Audio Input Outputs Output Voltage Front Panel AC Connector 8-channel 25-pin D-sub connector (Tascam Mulitrack format) 8 channels of 5-pin Phoenix connectors (3 pins for balanced audio hard-wired to the D-sub input connector, 2 pins for DC power) 8 outputs of 18 V DC (4.
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Meyer Sound Laboratories Inc. 2832 San Pablo Avenue Berkeley, CA 94702 www.meyersound.com T: +1 510 486.1166 F: +1 510 486.8356 © 2011 Meyer Sound Laboratories Inc. Stella Operating Instructions, PN 05.161.005.
