OPERATING INSTRUCTIONS INDUSTRIAL SERIES CAL™ Column Array Loudspeaker 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.
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.
CONTENTS Chapter 1: Introduction 7 How to Use This Manual CAL Column Array Loudspeaker CAL Installation Overview 7 7 8 Chapter 2: Power Requirements 9 AC Input Connector Wiring for AC Connections CAL Voltage Requirements CAL Current Requirements Electrical Safety Issues 9 9 10 10 11 Chapter 3: CAL User Panel 13 Audio Input On/Status LED Limit LEDs Logic I/O Ports Network / AVB Ports OLED Button Amplifier Cooling System User Panel Cover 13 14 15 15 17 17 17 17 Chapter 4: CAL Coverage 19 Summar
CONTENTS vi
CHAPTER 1: INTRODUCTION HOW TO USE THIS MANUAL CAL COLUMN ARRAY LOUDSPEAKER Make sure to read these operating instructions in their entirety before configuring a loudspeaker system with CAL loudspeakers. In particular, pay close attention to material related to safety issues.
CHAPTER 1: INTRODUCTION CAL is available in three models, each providing a different output level — up to a maximum peak SPL of 106 dB at 90 meters with CAL 96 — over an operating frequency range of 100 Hz to 16 kHz. Providing a horizontal coverage of 120 degrees, as well as the flexibility of vertical beam steering, a single unobtrusive CAL delivers clear vocal reproduction over a large area while minimizing undesirable reflections.
CHAPTER 2: POWER REQUIREMENTS CAL loudspeakers combine advanced loudspeaker technology with equally advanced power capabilities. Understanding voltage and current requirements, as well as electrical safety issues, is critical to CAL’s safe operation. WIRING FOR AC CONNECTIONS CAL loudspeakers require a grounded outlet. To operate safely and effectively, it is extremely important that the entire system be properly grounded.
CHAPTER 2: POWER REQUIREMENTS CAL VOLTAGE REQUIREMENTS Powering Up CAL Loudspeakers CAL operates safely and continuously when the AC voltage stays within 100–265 V AC at 50 or 60 Hz. The loudspeaker can withstand continuous voltages up to 265 V and allows any combination of voltage to GND (neutral-line-ground or line-line-ground).
CAL OPERATING INSTRUCTIONS ■ 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: ELECTRICAL SAFETY ISSUES Pay close attention to these important electrical and safety issues. ■ V pk (drop) = I pk x R (cable total) CAL requires a grounded outlet. Always use a grounded outlet and plug.
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CHAPTER 3: CAL USER PANEL The CAL user panel includes audio input connectors, both analog and digital (AES/EBU), for receiving audio source signals; logic connectors for selecting presets, overriding and muting audio output, and monitoring loudspeaker faults; and network ports for interfacing to a Mac or Windowsbased computer running the Compass control software. The network ports can also be used for receiving AVB audio streams as audio source signals.
CHAPTER 3: CAL USER PANEL The positive (+) and negative (–) pins carry the input as a differential signal. The shield (S) pin is connected to earth through a 1 kOhm, 1000 pF, 15 V clamped network. This circuitry provides virtual ground lift for audio frequencies while allowing unwanted signals to bleed to ground. When assembling cables, make sure all three pins are connected on both ends.
CAL OPERATING INSTRUCTIONS ommended. When the loudspeaker’s internal temperature cools to 60° C (140° F), the amplifier returns to normal operation. TIP: When CAL is connected to a computer running the Compass control software, the RMS tab provides additional feedback and warnings, if encountered, on the loudspeaker’s operating temperature.
CHAPTER 3: CAL USER PANEL Override and Mute CAL Factory Presets A summary of the beam settings for the CAL factory presets is shown in Table 2. CAL ships from the factory with these presets loaded into the loudspeaker. The presets can be edited and overwritten with the Compass control software. For more information, refer to the Compass documentation included with CAL (also available at www.meyersound.com).
CAL OPERATING INSTRUCTIONS NETWORK / AVB PORTS Network/AVB 1 AMPLIFIER COOLING SYSTEM 2 CAL employs a combination of natural convection and forced air in its cooling system. The amplifier’s heat sink provides natural convection cooling from the air flowing near its fins. In addition, a single-speed fan circulates air internally to ensure that CAL remains operational when exposed to high ambient temperatures or when driven continuously at high output levels.
CHAPTER 3: CAL USER PANEL Removing and Installing the User Panel Cover To remove and install the user panel cover: 1. Use a hex wrench to remove the four hex screws, flat washers, and lock washers securing the user panel cover to the CAL loudspeaker. 2. Attach any required cables to the user panel connectors. 3. Reattach the user panel cover, securing it with the previously removed hex screws, lock washers, and flat washers.
CHAPTER 4: CAL COVERAGE SUMMARY OF CAL COVERAGE .HORIZONTAL FIXED COVERAGE Below is a summary of the supported horizontal and vertical coverages for the three CAL loudspeaker models. All CAL loudspeakers include 120 degrees of fixed horizontal coverage.
CHAPTER 4: CAL COVERAGE VERTICAL BEAM SPREAD All CAL loudspeakers include vertical beams with variable spreads from 5 to 30 degrees in 5-degree increments. The vertical beams can also be steered. Figure 1 illustrates the vertical, acoustical center points for the three CAL models, from which the beams emanate. The acoustical center points also represent the axis for beam steering. 87.5° 5° 87.5° Minimum Vertical Beam Spread, 5° 69.10 [1755 mm] 52.40 [1331 mm] 35.70 [907 mm] 75.0° 30° 75.
CAL OPERATING INSTRUCTIONS VERTICAL BEAM STEERING SPLIT BEAMS All CAL loudspeakers include vertical beam steering of ±30 degrees in 1-degree increments. The steered beams can also be of any supported vertical spread (from 5 to 30 degrees). The CAL 64 and CAL 96 models include split beam coverage modes to aim sound toward two destinations or to avoid reflective surfaces such as a balcony.
CHAPTER 4: CAL COVERAGE CAL 96 Top Split Beams CAL 96 Bottom Split Beams The CAL 96 model includes a top split beam coverage with the top beam emanating from the top 32 drivers and the bottom beam emanating from the bottom 64 drivers. Figure 3 shows a CAL 96 with top split beams, each with 5degree beam spread (no steering). Also illustrated are the beams’ acoustical center points.
CHAPTER 5: COMPASS CONTROL SOFTWARE The Compass control software provides comprehensive control of CAL through a graphical user interface. The software enables easy access to all CAL features and even provides control of multiple units. Compass runs on a Mac or Window®-based computer.
CHAPTER 5: COMPASS CONTROL SOFTWARE 24
CHAPTER 6: MOUNTING CAL LOUDSPEAKERS CAL comes standard with adjustable brackets that allow it to be mounted on walls or columns. NOTE: Before mounting CAL, make sure to allow for the necessary cable runs to its audio sources, host computer, and any control devices or switches you intend to use.
CHAPTER 6: MOUNTING CAL LOUDSPEAKERS MOUNTING CAL LOUDSPEAKERS ■ CAL loudspeakers come preconfigured with its loudspeaker brackets already installed. After installing the wall mount plates, install CAL onto the wall, rotate the loudspeaker to adjust its horizontal coverage, tighten the top and bottom nuts, and attach the endcaps. Use a level and straight edge to make sure the top and bottom wall mount plates are vertically aligned. Ø0.28 (x2) [Ø7.1 mm] To mount CAL on a wall: 1.
CAL OPERATING INSTRUCTIONS 2. If they have not already been attached, attach the loudspeaker brackets to CAL: ■ Place the loudspeaker face down on a soft flat surface. ■ Attach the top loudspeaker bracket (the smaller one) to the top of the loudspeaker and secure it with the included hex nut, lock washer, steel flat washer, nylon flat washer, and spacer. Hand-tighten the hex nut. 3.
CHAPTER 6: MOUNTING CAL LOUDSPEAKERS ■ Insert the included quick-release pin into the screw hole of the bottom loudspeaker bracket (either side). The quick-release pin holds the loudspeaker in place. 6. Attach the endcaps to CAL: ■ Align the top endcap (the one without the drainage slot) with the top screw holes and secure the endcap with the included 10-32 panhead screws and washers.
APPENDIX A: CAL SPECIFICATIONS CAL Specifications ACOUSTICAL Operating Frequency Range 100 Hz – 16 kHz Note: Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics. Frequency Response 105 Hz – 15 kHz ±4 dB Note: Measured free field with 1/3-octave frequency resolution at 4 meters. Phase Response 230 Hz – 16.
APPENDIX A: CAL SPECIFICATIONS CAL Specifications Number of Channels Cooling CAL 96 96 CAL 64 64 CAL 32 32 Convection AC POWER Connector PowerCon Voltage Selection Automatic, continuous from 90–235 V AC Safety Agency Rated Operating Voltage 100–240 V AC, 50/60 Hz Current Draw Idle Current Maximum Long-Term Continuous Current (>10 sec) Burst Current (<1 sec) Ultimate Short-Term Peak Current CAL 96 1.98 A rms (115 V AC) 1.63 A rms (230 V AC) 2.32 A rms (100 V AC) CAL 64 1.
CAL OPERATING INSTRUCTIONS CAL Specifications Non operating Altitude To 6300 m (25,000 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) CAL COMPLIANCE CAL DIMENSIONS 6.01 [153 mm] 9.93 [252 mm] 7.75 [197 mm] 115.20 [2926 mm] 121.
APPENDIX A: CAL SPECIFICATIONS 6.01 [153 mm] 9.93 [252 mm] 7.75 [197 mm] 81.80 [2078 mm] 87.72 [2228 mm] CAL 64 Dimensions (with Mounting Hardware) 6.01 [153 mm] 9.93 [252 mm] 7.75 [197 mm] 48.40 [1229 mm] 54.
Meyer Sound Laboratories Inc. 2832 San Pablo Avenue Berkeley, CA 94702 www.meyersound.com T: +1 510 486.1166 F: +1 510 486.835 © 2012 Meyer Sound. All rights reserved. CAL — 05.210.087.
