Crown CTS 2000, CTS 3000, CTS 1200, CTS 600 manual Back Panel Controls, Connectors and Indicators

`` SPECIFICATIONS

Performance

Frequency Response (at 1 watt from line out):

50 Hz to 20 kHz ± 1 dB.

19 Hz to 34 kHz +0, –3 dB.

Signal to Noise Ratio (ref. to rated power, master volume at minimum):

Mic: > 58 dB.

Line: > 60 dB.

Telephone: > 60 dB.

Inputs 2 or 3 (and 4 in 160MA): > 78 dB.

THD + N: < 0.5% at rated power at 1 kHz. < 0.1% at 5W at 1 kHz.

Input Sensitivity (for full output at maximum gain):

Input 1: Mic 3mV, Line 800mV.

Input 2: 400mV.

Input 3: 400mV.

Input 4 (160MA only): 400mV.

Input Impedance (nominal):

Mic: 2.2 kilohms.

Line: 10 kilohms.

RCA: 10 kilohms.

Crosstalk: –82 dB at 1kHz (Ch. 1 line input 0.8V, Ch. 1 volume at minimum, other channel volumes at maximum).

Line Output Level (nominal): 1V into 10 kilohms.

Phantom Power: 15 VDC.

AC Line Voltages Available:

Universal Power Supply. Line voltage tolerance +15%, –20%.

Operating Temperature/Humidity: 0° C to 40°

Cat 95% relative humidity (non-condensing).Storage Temperature: –20° C to 85° C.

Front Panel Controls and Indicators

Power Switch: Pushbutton on-off switch.

Input Volume Controls: Four controls, one per input. Detented potentiometers with knobs.

Tone Controls: Bass and Treble non-detented recessed potentiometers under master output volume control. Bass ±10 dB at 100 Hz, Treble ±10 dB at 10 kHz.

Power Indicator: Blue LED indicates power on.

Input Signal Presence Indicators: Green LED, one above each channel's input attenuator, illuminates when input signal exceeds –40 dBu.

Input Signal Clip Indicators: Green LED, one above each channel's input attenuator, flashes brightly at threshold of audible distortion.

Output Signal Presence Indicator: Green LED above master output volume control illuminates when any input signal exceeds –40 dBu.

Output Signal Clip Indicators: Red LED above master output volume control flashes brightly at threshold of audible distortion.

Master Output Volume Control: Detented potentiometer with knob.

Back Panel Controls, Connectors and Indicators

AC Power Inlet: Detachable IEC accepts US or Euro style power cords.

Amplifier Output Connector: 4-position termi- nal barrier block with COM (Common), 8 ohms, 70V and 100V terminals. Accepts up to 10 AWG terminal forks. Non-touch cover included.

Preamp Line Out Connector: 3-pin balanced Phoenix-type for connection to external ampli- fiers. Level independent of master volume control.

Input Connector 1: 5-terminal Phoenix connec- tor. 3 terminals for balanced signal, 2 terminals for priority contact closure, which mutes other channels when DIP switch 3 is on.

Input Connector 2: Unbalanced line-level RCA- type connectors.

Input Connector 3: Unbalanced line-level RCA- type connectors.

Input Connector 4 (160MA only): Unbalanced line-levelRCA-type connectors.

Telephone (MOH) Output Connector: 4-terminal Phoenix connector (2 terminals for 1W output to 8-ohm speaker, 2 terminals for 600-ohm output to PBX music-on-hold port).

MOH Level Control: Trim pot adjusts level for Music-On-Hold output from Telephone (MOH) Output Connector.

Amp Configuration DIP Switch: DIP switch selection for multiple functions.

1.On: Sets CH1 to Mic Input. Off: Sets CH1 to Line Input.

2.On: Sets CH1 to Normal mode (no priority).

3.On: CH1 priority contact closure mutes other channels.

4.On: CH1 VOX mutes other channels by sens- ing signal through Input 1.

5.On: Routes CH1 to MOH output.

6.On: Routes CH2 to MOH output.

7.On: Routes CH3 to MOH output.

8.On: 15V phantom power.

VOX Threshold: Trim pot controls how loud the voice on CH1 must be before muting other channels. Can be set for no muting.

Cooling

Convection cooled.

Protection

Included protection mechanisms are current limiting, over-temperature thermal cutout, and DC-fault load protection. The unit is protected against turn-on/turn-off thumps.

Included Accessories

Power cord

Non-touch cover for output connectors Phoenix-type connectors

Optional Accessories

Part no. IST 600-ohm Isolation Transformer for Telephone Output or Input 1.

Part no. RM1 single rack mount kit for mount- ing a single MA unit in a rack.

Part no. RM2 double rack mount kit for mount- ing two MA units side-by-side in a rack.

Part no. S-Cover 10-pack of security knobs.

Dimensions

Width: Half rack width (9.5 in. or 24.1 cm).

Height (front panel): 3.5 in. (8.9 cm).

Height (including feet): 4.1 in. (10.5 cm).

Depth (front panel to back panel): 12.2 in. (31.0 cm).

Depth (front of knobs to back panel): 13.9 in. (35.2 cm).

Weight

Net Weight:

135MA: 8 lb 2 oz (3.7 kg).

160MA: 9 lb 7 oz (4.3 kg).

Shipping Weight:

135MA: 10 lb 16 oz (4.9 kg).

160MA: 12 lb 4 oz (5.6 kg).

Regulatory Certifications

2/08 140498-1

COMMERCIAL AUDIO

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tion instructions, Crown’s Commercial Audio units are the smart choice for commercial sound.