Overview
The CAL steerable column array loudspeaker incorporates over three decades of technological innovation and advanced research to achieve unprecedented accuracy in sound reproduction. The first loudspeaker to be certified for AVB interoperability by the Avnu Alliance®, the self-powered CAL is designed primarily for vocal reproduction in fixed installations. It offers variable vertical beam spread (as narrow as 5° and as wide as 30° in 5° increments) that can be digitally steered up or down by 30° (in 1° increments). CAL’s beam steering takes the practice of directing sound to the next level, and with a smart, lean profile, CAL sets the standard for high-quality sound installations.
CAL is available in three models, each providing a different output level—up to a linear peak SPL of 101 dB with 18.5 dB crest factor (measured using M-noise4) for CAL 96 at 90 m—over an operating frequency range of 100 Hz to 16 kHz. Providing a horizontal coverage of 120°, 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.
Discrete onboard class D amplifier channels, processed by sophisticated algorithms, power each driver and tweeter. The amplitude and phase response of each driver are engineered to produce interactions that yield the desired vertical spread.
Controlling each element individually yields greater flexibility and precision than other beam steering systems that control modules consisting of multiple drivers.
The accuracy of CAL’s vertical steering allows system designers to pinpoint coverage, even when mounting options in a venue do not allow for physically aiming a loudspeaker toward a coverage area. CAL 96 and CAL 64 include split beams that can be configured to fit the application, for example, to avoid hitting a reflective balcony surface. To meet the high intelligibility requirement for vocal reproduction, CAL maintains accurate beam steering up to 10 kHz, well beyond the benchmark of 4 kHz used in traditional single-driver loudspeakers.
CAL loudspeakers include AVB-enabled Ethernet ports that accept AVB audio streams as source signals, and also provide computer control of CAL via Meyer Sound’s Compass control software which allows beam control and RMS™ real-time monitoring of each loudspeaker on the network.
CAL comes standard with adjustable mounting brackets for installation on walls or columns. The low-profile aluminum enclosure is available in white, black, and custom colors, allowing it to blend easily into any background. Weather protection permits outdoor installations in most environments.
Features and Benefits
- Variable vertical spread from 5° to 30° in 5° increments
- 60° of vertical beam steering, ±30° in 1° increments
- Proprietary drivers optimized for high output and low distortion
- Discrete amplifier channels and signal processing for each driver and tweeter
- AVB-enabled Ethernet ports for audio streaming and computer control
- Compass control software provides control of CAL beam configurations
- Low profile enclosure and custom colors blend into any environment
- Weather protection and rain hood included for outdoor installations
- First Avnu®-certified loudspeaker
Applications
- Airports
- Convention centers
- Stadiums
- Places of worship
- Shopping malls and retail spaces
- Reverberant spaces requiring low-profile sound reinforcement for voice
Specifications
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ACOUSTICAL1 |
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Operating Frequency Range2 |
100 Hz – 16 kHz |
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Frequency Response3 |
105 Hz – 15 kHz ±4 dB |
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Phase Response |
230 Hz – 16.9 kHz ±45° |
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Linear Peak SPL4 |
CAL 96 at 90 m (295 ft), CAL 64 at 60 m (196 ft), CAL 32 at 30 m (98 ft): 101 dB with 18.5 dB crest factor (M-noise), 98 dB (Pink noise), 100 dB (B-noise) |
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COVERAGE |
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Horizontal Coverage |
120° |
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Vertical Coverage |
Variable, 5° to 30° in 5° increments |
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Vertical Steering |
±30° in 1° increments |
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Vertical Beam Splits |
CAL 96: Top split, bottom split CAL 64: Center split CAL 32: None |
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TRANSDUCERS |
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Low Frequency |
CAL 96: (24) 4-inch cone drivers CAL 64: (16) 4-inch cone drivers CAL 32: (8) 4-inch cone drivers |
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High Frequency |
CAL 96: (72) 20 mm tweeters CAL 64: (48) 20 mm tweeters CAL 32: (24) 20 mm tweeters |
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AMPLIFIER |
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Type |
Multichannel class D, one channel per driver |
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Number of Channels |
96 (CAL 96); 64 (CAL 64); 32 (CAL 32) |
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Cooling |
Convection and forced air |
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AUDIO/CONTROL |
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Analog Audio |
(3) Phoenix 6-pin male connectors for balanced audio input and loop output |
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Digital Audio5 |
(1) Phoenix 6-pin male connector for AES/EBU input |
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Ethernet and AVB |
AVB-enabled Ethernet ports for integrated audio streaming, beam control and RMS monitoring via Compass control software. Supports communication of AVB timing data and audio signals via AAF packets (AVTP Audio Format) and communication of AVB clock signals via CRF packets (Clock Reference Format). |
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Processing6 |
Mute, gain, 5-band parametric EQ, and delay, stored in four onboard presets |
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Logical I/O |
Phoenix 6-pin male connector, recalls onboard presets, reports relay closures (and openings) for fault reports; Phoenix 5-pin male connector, triggers emergency mute and input override |
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Display |
OLED button displays CAL’s network addresses during startup or when the button is pushed |
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AC POWER |
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Connector |
powerCON 20 |
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Safety Rated Voltage Range |
100–240 V AC, 50–60 Hz |
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Turn-on and Turn-off Points |
90 V AC turn-on; 264 V AC turn-off |
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CURRENT DRAW |
115 V AC |
230 V AC |
100 V AC |
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Idle Current |
CAL 96 CAL 64 CAL 32 |
1.98 A rms 1.24 A rms 0.58 A rms |
1.63 A rms 0.99 A rms 0.45 A rms |
2.32 A rms 1.42 A rms 0.65 A rms |
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Maximum Long-Term Continuous Current (>10 sec) |
CAL 96 CAL 64 CAL 32 |
8.3 A rms 6.1 A rms 3.3 A rms |
4.2 A rms 3.1 A rms 1.7 A rms |
9.4 A rms 6.9 A rms 3.7 A rms |
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Burst Current (<1 sec)7 |
CAL 96 CAL 64 CAL 32 |
14.7 A rms 10.8 A rms 5.9 A rms |
7.3 A rms 5.4 A rms 2.9 A rms |
18.5 A rms 13.6 A rms 7.4 A rms |
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Maximum Instantaneous Peak Current |
CAL 96 CAL 64 CAL 32 |
33 A peak 24 A peak 13 A peak |
18 A peak 13 A peak 7 A peak |
40 A peak 29 A peak 16 A peak |
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PHYSICAL |
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Dimensions |
CAL 96 W: 7.75 in (197 mm) x H: 121.12 in (3076 mm) x D: 9.93 in (252 mm) CAL 64 W: 7.75 in (197 mm) x H: 87.72 in (2228 mm) x D: 9.93 in (252 mm) CAL 32 W: 7.75 in (197 mm) x H: 54.32 in (1380 mm) x D: 9.93 in (252 mm) |
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Weight (with mounting hardware)7 |
CAL 96: 173 lb (78.5 kg) CAL 64: 124 lb (56.2 kg) CAL 32: 80 lb (36.3 kg) |
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Enclosure |
Extruded aluminum with white, black, and custom color finishes |
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Weather Protection |
Suitable for outdoor installations, rain hood included |
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Rigging |
Adjustable brackets are included for mounting on walls or columns |
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