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CA 18
The CA18 professional power amplifier is designed to achieve unsurpassed sonic performance
and long-term reliability--even when operating under extreme stress--in touring or fixed installation
applications.
Application
The CA? series provides tremendous value in proven amplifier technology. CAs form the backbone
of discriminating rental systems and high-power club installations worldwide.
Auditoriums, churches, regional tour sound companies and mobile DJs are all ideal candidates for the
CA Series? combination of value and sonic quality.
Design Focus
The CA Series design provides economical access to the premium sound quality of the Crest Audio
Pro Series.
Professional power-handling capabilities and exceptional low-end response make this amplifier an
ideal choice for installations and touring applications that demand the finest audio quality.
FEATURES:
8 Ohm Stereo - 1000 W
4 Ohm Stereo - 1800 W
2 Ohm Stereo - 2500 W
8 Ohm Bridged - 3600 W
4 Ohm Bridged - 5000 W
Legendary over-built power supply
Toroidal power transformer
Latest generation of high-speed, wide-bandwidth output devices
Twin-tunnel cooling with back-to-front air flow
Dual, rear-mounted, continuously variable-speed fans
Balanced male and female XLR inputs with switch-configurable XLR polarity
and sensitivity selection
Speakon? or five-way binding post output connectors (market dependent)
Stereo, parallel, bridged-mono mode selector switch
Ground-lift switch
Front panel circuit-breaker switch
Recessed, stepped attenuators
SIGNAL present/active, PROTECT, and ACL LED's
Modular construction
Powder-coated steel chassis
Five-year warranty
Dimensions 19" W x 5.25" H x 15" D
(483 mm x 134 mm x 381 mm)
Weight 77 lbs. (35 kg)
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Low weight switching final power amplifier. Power 2X2500W / 4Ω, 2Χ3000W / 2Ω. 5000W bridged 8Ω. New integrated BSS OMNIDRIVE 4bit / 192kHz processor with Cirus Logic SHARC A / D and D / A Converters. Level MAX peak voltage and RMS compressing, limiting. New hi-end FIR and IIR filters, 2sec delay / channel, as well as DSP presets for various speakers. LCD display on the front. USB port on the front for loading firmware and Speakers Tunning presets. Analog inputs with XLR, digital input AES / EBU, ethernet input RJ-45 with TCP / IQ protocol. Advanced 3rd generation power supply that allows the amplifier to operate at any voltage. Cooling circuit with microprocessor control with adjustable speed depending on the temperature. Analog and digital outputs (THRU) XLR. Exits speakon 5-way binding post, ground lift switch. Made of cast aluminum, height 2U rack. Suitable for P.A applications but also permanent installations. Weight 10.5kg |
Stereo Mode Ratings (Both Channels Driven):
8 ohms:
- FTC 20 Hz - 20kHz, 0.1% THD: 1050W
- EIA 1 kHz, 0.1% THD: 1100W
4 ohms:
- FTC 20 Hz - 20kHz, 0.1% THD: 1600W
- EIA 1 kHz, 0.5% THD: 2000W (1% THD)
2 ohms:
- EIA 1 kHz, 1% THD: 2500W
70V Direct Drive:
- EIA 1 kHz, 1% THD: 2500W
100V Direct Drive:
- EIA 1 kHz, 1% THD: 1000W
Bridged Mono Mode Ratings/Specifications:
8 ohms:
- FTC 20 Hz - 20kHz, 0.1% THD: 3200W
- EIA 1 kHz, 0.1% THD: 3600W
4 ohms:
- EIA 1 kHz, 1% THD: 5000W
70V Direct Drive:
- EIA 1 kHz, 1% THD: 5000W
100V Direct Drive:
- EIA 1 kHz, 1% THD: 3600W
Signal to Noise, 20Hz-20kHz, 0.1% THD, 8 Ohms: > -100dB
Input Sensitivity @ 8 Ohms: 1.42V (+5.3 dBu)
Voltage Gain @ 8 Ohms: 64x (36 dB)
Output Circuitry: 3-tier Class H
Power Requirements (120V):
- 1/8 power pink noise at 4 ohms: 13.9A
- 1/3 power pink noise at 4 ohms: 26.9A
Power Requirements (230V):
- 1/8 power pink noise at 4 ohms: 7A
- 1/3 power pink noise at 4 ohms: 13.5A
Distortion (SMPTE-IM): |
Power Output Level R-150 PLUS
STEREO
8ohm(T.H.D 0.05%) 50W+50W
4ohm(T.H.D 0.05%) 75W+75W
BRIDGED MONO
8ohm(T.H.D 0.05%) 50W
8ohm(T.H.D 0.5%) 170W
Frequency Response 20Hz- 20kHz, ±0.5dB
Convection Cooled
SoftStart Protection System
Balanced 10kΩ@0.775V Inputs
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Amplifier Gain 39 dB, 35 dB 32 dB (switchable)
CAN Bus Interface Optional with RCM-26
Continuous Rated Power
(1 kHz, THD 1%) 2Ω 3500 Watts
Continuous Rated Power
(1 kHz, THD 1%) 4Ω 2500 Watts
Continuous Rated Power
(1 kHz, THD 1%) 8Ω 1500 Watts
Continuous Rated Power
(20-20 kHz, THD |
Power supply
- Powersoft legendary universal switch-mode power supply up to 400VAC tolerant with Power Factor Correction
- Patented output filter with ripple cancellation network
- Low Inrush Limiting reduces AC inrush current, removing the need for expensive power sequencers
- Detachable AC mains cable with IEC C19/22.2 (16A for EU, 20 A for USA) socket
Protections
Fully protected circuit design with:
- Ac protection: shut down power supply when AC mains voltage is outside the operating range
- Clip limiter: prevents severely clipped waveforms from reaching loudspeakers, while still maintaining full peak power output
- DC protection: protects against infrasonic signal at the outputs
- VHF protections: protects the loudspeakers against non-audible, strong, non-musical high-frequency signals
- Short circuit protection: protects the amplifier from short circuit or other stressful events for the output circuits with automatic protection reset
- Long term limiter: protects the loudspeaker against steady long term RMS (non-audio) signals, by reducing maximum output
- Thermal protection: output stages operating temperature up to 80 °C (176 °F)
- Temperature controlled continuous variable speed fan, front to back airflow
- Temperature forecast with LCD traced historical behavior
General
- Fixed frequency switchmode output stage for high grade sound accuracy
- Compact size – all models only 1 RU for reduced rack cost and space
- Light weight – for easier racking and shipping: 7 kg (15.4 lbs)
- Standard Phoenix connectors: analog audio outputs, aux supply, alarms and GPIO
- Remotely switchable double input (main and aux) per channel
Loudspeaker system configuration
- Direct drive either low impedance loads or 70V / 100V Hi-Z distributed lines
- Switchable 35Hz / 70Hz high pass filter per channel
- Mixed configuration with Lo-Z/Hi-Z systems possible
- Bridged mode low impedance per channel pair
Alarms and GPI/O
- NC/NO contacts per channel for alarm notifications
- Remote ON/OFF switch
- Remote VCA control per channel
Digital Signal Processing
- TI C6000 DSP platform
- AD/DA converter: dual 24bit @ 48 kHz Tandem® architecture
- Input/output independent equalizers per channel providing PEQ, raised cosine, shelving IIR filters as well as custom output FIR filters
- Delay up to 100 ms for time alignment
- Active DampingControl™ for cable compensation
- Peak, RMS voltage, RMS current, TruePower™ limiters
Remote Control & Monitoring
Via software:
- Control and diagnostics monitoring via ArmoníaPlus
- Dedicated WebApp
Via Hardware:
- Attenuation (from 0dB to 26dB)
- High-pass filters (35Hz, 70Hz)
- Lo-Z/Hi-Z/70V/100V output selection
- Adjustable gain (from 26dB to 35 dB)
| General |
| Output power per Channel |
| Output power per Channel |
1000 W @ 2 Ω |
800 W @ 4 Ω |
800 W @ 8 Ω |
| Bridge mode |
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2000 W @ 4 Ω |
1600 W @ 8 Ω |
| Max output voltage / current |
| Max unclipped output voltage@8 Ω |
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115 Vpeak |
| Current |
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45 Apeak |
| AC main power |
| Power supply |
Universal, regulated switch mode with PFC (Power Factor Correction) |
| Nominal power requirement |
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100-240 V ±10%, 50-60 Hz |
| Operating voltage |
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90 V – 264 V |
| Power consumption / current draw |
| Idle |
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115 V: 23 W – 0.34 A |
230 V: 23.3 W – 0.21 A |
| 1/8 of max output power @ 4 Ω |
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115 V: 267 W – 2.5 A |
230 V: 274 W – 1.5 A |
| THERMAL |
| Operating temperature range |
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0° – 45° C – 32° – 113° F |
| Thermal dissipation* |
| Idle |
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115 V: 78 BTU/h |
230 V: 79 BTU/h |
| 1/8 of max output power @ 4 Ω |
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115 V: 229 BTU/h |
230 V: 251 BTU/h |
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