The Ci™ Series amplifiers are designed to drive low-impedance or 70V speaker loads without bridging between channels. Bridged operations are supported for additional power into 8 ohm loads or 140V operation.
As with all Crest Audio products, sonic performance is of primary importance. In addition, high-efficiency, comprehensive load protection, and compact packaging have been achieved in the Ci design.
The Ci Series amplifiers incorporate Crest Audio’s tried-and-true modular approach to intelligent amplifier configuration. Through the provision of a single module bay, these amplifiers come with a module that facilitates load monitoring, digital audio delivery, and Crest Audio’s NexSys networking.
A full complement of features and options makes this series very versatile, whether powering airport systems, restaurant audio or a myriad of other applications.
| Frequency Response 1W @ 8Ω | 5 Hz to 20 kHz, +/-1 dB |
|---|---|
| Power BW Rated Power @ 4Ω, 1% THD+N | 20 Hz to 20 kHz, +/-1 dB |
| THD + N | |
| Damping Factor | 200:1 @ 8 ohms (20 Hz to 100 Hz) |
| Input CMRR | >60 dB @ 1kHz |
| Gain / Input Sensitivity @ 70V | 1.14 volts for full rated output power (70 volt switch selected) |
| Gain / Input Sensitivity @ 8Ω | 1.0 volts for full rated output power (Low Z switch selected) |
| Input Impedance | >20 kohms balanced, >10 kohms unbalanced |
| Hum and Noise | > -97 dB, A-weighted below rated power @ 8 ohms |
| Crosstalk | > -60 dB below max rated power (1 kHz) |
| Power Supply | Linear with toroid transformer |
| Circuit Breaker Rating (120V/230V) | 12A / 6A |
| Current Draw (120VAC) 1/8 Power, 70V | 5A |
| 1/3 Power, 70V | 10A |
| At Idle | |
| Thermal Emissions 1/3 Power, 70V btu/hr | 947 |
| Cooling | Front to side via variable speed fan |
| Input Connectors | Balanced three-pin Euro-style (rear panel) |
| Output Connectors | Barrier strips (rear panel) |
| Power Sequence Connectors | 2 x three-pin Euro-style (rear panel) |
| Fault Connectors | Three-pin Euro-style (rear panel) |
| Control Voltage Connectors | Two-pin Euro-style (rear panel) |
| Controls | Front panel: three-position On / Off / Remote power switch Rear panel: stepped attenuators, 70V/Low Z switch, dual/bridged switch, circuit breaker |
| LED Indicators | Front and rear panels: Signal, ACL/IGM, Protect, Active, Power Present |
| Construction | 16-gauge steel chassis, double thickness in rack ear areas |
| Dimensions (H x W x D) | 3.5" (88.9 mm) x 19" (482.6 mm) x 17.3" (439.42 mm) |
Usually arrives in 5-9 business days.
