Crown CTS 3000
Building on the foundation of the Com-Tech® Series, Crown's CTs Series offers new flexibility and value for installed sound applications. The Com-Tech Series were the first to offer independent selection of high- and low-impedance operation for a specific channel, and CTs Series amplifiers continue that tradition, with power levels and features carefully chosen to perfectly integrate into fixed install design requirements.
The power amplifier shall be a solid-state two-channel model employing Class 1 (BCA) output circuitry.
The amplifier shall contain protection from shorted, open and mismatched loads, general overheating, DC, high-frequency overloads, under/over voltage,and internal faults.
If an amplifier channel starts to overheat, the Thermal Level Control (TLC) circuit shall engage that channel's input compressor in an amount proportional to the amount of overheating, in order to generate less heat. If the channel becomes too hot for safe operation, the channel shall shut off,nd the Thermal Indicator for that channel shall illuminate brightly to alert the user that a state of thermal stress or overload has caused the channel to shut down.
The front-panel control shall be a power switch.Rear-mounted controls shall include Channel Level Controls, High Pass Filter Switches (one per channel), and a Mode Switch. The High Pass Filter Switch shall select between fl at and two position of rolloff.
The twoposition Mode Switch selects between Dual or Bridge-Mono operation.
Crown CTS 3000 Features:
- The recommended load impedance in Dual mode shall be 2/4/8 and 70V or 100V. The load impedance in Bridge-Mono mode shall be 4/8/16 ohms and 140V or 200V. The amplifi er shall be safe when driving any kind of load,including highly reactive ones.
- The rear-mounted output connector shall be one four-pole touch-proof terminal strip. Rear-mounted input connectors shall be 3-pin balanced barrier connectors on the standard PIP2-BBY module. This module shall include a "Y" Input Switch which combines both input signals.
- The amplifier shall be fully compatible with and shall provide appropriate input cables and connectors for Crown® PIP2 modules. The amplifi er shall be fully compatible with Harman Pro System Architect or the Crown IQ System® .
- Front panel indicators shall include a yellow Bridge-Mode Indicator that illuminates when the Mode Switch is set to the "Bridge" position (and fl ashes if the Mode Switch is changed while the amplifi er is powered up, indicating that the amplifi er must be powered off and on to reset the Mode), a green Ready Indicator (one per channel) that illuminates when the channel is initialized and ready to produce audio output, a green Signal Indicator (one per channel) that illuminates to indicate the presence of input signals above –40 dBu, a red Clip Indicator that illuminates when the THD of the channel's output signal rises to a level typically considered as the onset of audible clipping (and illuminates during Thermal Level Control or input overload), a red Thermal Indicator (one per channel) that illuminates when a state of thermal stress or overload has caused the channel to shut down (and illuminates in all channels if the power supply goes into thermal overload), a red Fault Indicator (one per channel) that fl ashes when a fault condition has occurred in the channel, a yellow Data Indicator that fl ashes during control data activity (if the amplifi er is equipped with an IQ-PIP2 module and is connected to a control system), and a blue Power Indicator that illuminates when the amplifi er has been turned on and AC power is available (and fl ashes when the amplifi er shuts off due to an under-/over-voltage condition on the AC mains).
- The power amplifier shall meet or exceed the following performance criteria. Input sensitivity for rated output: 1.4 V. Rated output with both channels driven in Dual mode with 0.35% THD (20 Hz to 20 kHz): 1500 watts per channel into 2 ohms, 1500 watts per channel into 4 ohms, 1250 watts per channel into 8 ohms, 625 watts per channel into 16 ohms,1500 watts per channel (70V), and 1500 watts per channel (100V). Rated output in Bridge-Mono mode with both channels driven at 0.35% THD (20 Hz to 20 kHz): 3000 watts into 4 ohms, 3000 watts into 8 ohms; 2500 watts into 16 ohms, 3000 watts (100V), and 3000 watts (200V). Frequency Response at 1 watt, 20 Hz to 20 kHz: ± 0.25 dB. Signal to Noise Ratio below rated power (20 Hz to 20 kHz): better than 105 dB A-weighted.
- Total Harmonic Distortion at full rated power from 20 Hz to 20 kHz: less than 0.35%. Damping Factor: greater than 3000 from 10 to 100 Hz.
- Crosstalk (below rated power, 20 Hz to 1 kHz): greater than 80 dB. Common Mode Rejection (20 Hz to 1 kHz): 50 dB. DC Output Offset: less than 2 mV.
- Input Impedance (nominal): 10 kilohms balanced, 5 kilohms unbalanced. Maximum Input Level (before input compression): + 20 dBu rms.
- Power Draw at Idle (120 VAC mains, all channels in 4/8 ohm mode): 35 watts (standby mode).
Crown CTS 3000 Specfications:
- The amplifier chassis shall be constructed of steel with a durable black fi nish and shall be designed for continuously variable-speed forced-air ventilation from the front panel to the back panel.
- The dimensions of the amplifi er shall allow for 19 inch (48.3 cm) EIA standard (RS-310-B) rack mounting. The amplifi er shall be 3.5 inches (8.9 cm) tall, and 14.25 inches (36.2 cm) deep behind the rack-mounting surface.
- The amplifier shall weigh 27.7 pounds (12.6 kg).
- The amplifier shall be designated the Crown CTs 3000.
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