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180 A

S CR552
Weight: kg
CROWN

Crown 180A Description:

Crown's Commercial Audio amplifiers deliver legendary Crown quality to the commercial audio industry. These high-value amplifiers provide both 4-ohm and constant-voltage outputs (70V and 100V) for use in a wide range of commercial applications including schools, hospitals, factories, restaurant/retail, houses of worship, fitness facilities, A/V boardrooms, prisons, and small offices. Easily configured for a range of uses such as paging, background music, security, and evacuation instructions, Crown's Commercial Audio units are the smart choice for commercial sound.

Some applications include schools, hospitals, factories, restaurant/retail, houses of worship, fitness facilities, A/V boardrooms, prisons, and small offices. Typical uses are paging, background music, security and evacuation instructions.

  • 180A has 1 input and one 80W power amplifier for single-zone systems.

Crown 180A Features:

  • Ideal for commercial and industrial use
  • Expandable by adding Crown Commercial Audio Series mixers or mixer-amplifiers
  • Balanced Phoenix-type inputs; touch-proof screw-terminal speaker outputs
  • Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifications

280 A

S CR555
Weight: kg
CROWN

Crown 280A

280A has 2 inputs and dual 80W power amplifiers for two-zone systems.

Crown's Commercial Audio amplifiers deliver legendary Crown quality to the commercial audio industry. These high-value amplifiers provide both 4 ohm and constant-voltage outputs (70V and 100V) for use in a wide range of commercial applications including schools, hospitals, factories, restaurant/retail, houses of worship, fitness facilities, A/V boardrooms, prisons, and small offices. Easily configured for a range of uses such as paging, background music, security, and evacuation instructions, Crown's Commercial Audio units are the smart choice for commercial sound.

Features

  • Ideal for commercial and industrial use
  • Expandable by adding Crown Commercial Audio Seriesmixers or mixer-amplifiers
  • Balanced Phoenix-type inputs; touch-proofscrew-terminal speaker outputs
  • Three-Year, No-Fault, Fully Transferable Warranty completely protects yourinvestment and guarantees its specifications

Specifications

  • Frequency Response (at 1 watt from 4-ohm tap): 70Hzto 19kHz +/-1dB
  • Frequency Response (at line out): 20Hz to 20kHz+/-1dB
  • Power Bandwidth (at 4-ohm tap, 2 dB below maximum1kHz power): 50Hz to 20kHz with <0.5% THD
  • Signal to Noise Ratio: (ref. to rated power, mastervolume at minimum): 85 dB
  • DC Output Offset: <+/-5 mV
  • THD: Less than 0.5% at rated power at 1kHz
  • Input Sensitivity (for full output at maximum gain):800 mV
  • Input Impedance (nominal): 100 kilohms
  • Crosstalk (all controls at "10"): -70dB at 1kHz
  • Line Output Level (nominal): 1V into 10 kilohms
  • Minimum guaranteed power per channel into 4 ohms or70V/100V output: 80W
  • Dimensions (W x H x D): 19" x 3.5" x 12.2"
  • Weight: 25.3 lbs (net), 30.3 lbs (shipping)

28 M

S CR569
Weight: kg
CROWN

The 28M has 8 inputs and 2 output channel.

Crown's Commercial Audio mixers deliver legendary Crown quality to the commercial audio industry. These high-value mixers are designed for use in a wide range of commercial applications including schools, hospitals, factories, restaurant/retail, houses of worship, fitness facilities, A/V boardrooms, prisons, and small offices. Easily configured for a range of uses such as paging, background music, security, and evacuation instructions, Crown's Commercial Audio units are the smart choice for commercial sound.

Features

  • Ideal for commercial and industrial use
  • Expandable by adding Crown Commercial Audio Seriesamplifiers or mixer-amplifiers
  • Balanced Phoenix-type mic/line inputs
  • Any input can be sent to any output channel
  • Built-in four-tone generator
  • Priority muting
  • Three-Year, No-Fault, Fully Transferable Warranty completely protects yourinvestment and guarantees its specifications

Specifications

  • Frequency Response (at line out): 20Hz to 20kHz+/-1dB
  • Signal to Noise Ratio (master volume at minimum): 100dB
  • THD: less than 0.01% at rated output at 1kHz
  • Input Sensitivity (volts RMS for full output at maximum gain)
    • Balanced mic inputs: 3mV
    • Balanced line inputs: 800mV
    • RCA connectors: 400mV
  • Input Impedance (nominal)
    • Mic: 400 ohms
    • Line: 100 kilohms
    • RCA: 50 kilohms
  • Crosstalk (all controls at "10"): -50dB at 1kHz
  • Line Output Level (nominal): 1V into 10 kilohms
  • Phantom Power: 15 VDC
  • Dimensions (W x H x D): 19" x 1.7" x 10.7"
  • Weight: 8.7 lbs (net), 14 lbs (shipping)

135MA

S CR664
Weight: kg
CROWN

The Crown 135MA is a high value mixer-amplifier for commercial audio. It provides 8-ohm and constant-voltage outputs (70V and 100V). Typical uses are paging, background music, and music-on-hold. The 135MA provides 3 inputs (each with a volume control) and a 35W amplifier output. Other features include priority muting, voice activated muting, phantom power, and Bass and Treble controls.

Features

  • 3 inputs (each with a volume control), and one 35W amplifier output channel
  • Ideal for paging, background music, and music-on-hold
  • Balanced Phoenix-type mic/line input, telephone output, dual RCA stereo music inputs, screw-terminal speaker outputs
  • Priority muting by VOX or external switch
  • Bass and Treble controls on master output
  • Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifications

Specifications

  • Minimum Guaranteed Power into 8 ohms or 70V/100V Output: 35W
  • Frequency Response (at 1 watt from line out): 50Hz to 20kHz +/-1dB; 19Hz to 34kHz +0, -3dB
  • 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 1kHz; <0.1% at 5W at 1kHz
  • Input Sensitivity (for full output at maximum gain):
    Input 1: Mic 3mV, Line 800mV.
    Input 2: 400mV.
    Input 3: 400mV.
  • Input Impedance (nominal):
    Mic: 2.2 kilohms.
    Line: 10 kilohms.
    RCA: 10 kilohms.
  • Crosstalk: -82dB 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° C at 95% relative humidity (non-condensing).
  • Storage Temperature: Storage Temperature: –20° C to 85° C.
  • 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 mounting a single MA unit in a rack.
    Part no. RM2 double rack mount kit for mounting 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: 8 lb 2 oz net; 10 lb 16 oz shipping

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, fl ashes 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 fl ashes 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 terminal 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 amplifiers. Level independent of master volume control.
  • Input Connector 1: 5-terminal Phoenix connector. 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.
  • 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 sensing 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.

CH 1

S CR624
Weight: kg
CROWN
Features
• Drives multiple impedances, with both low impedance and high impedance outputs per channel.
• High-pass filter for each channel provides low-frequency roll off to eliminate step down transformer saturation when used in 70V distributed systems.
• Shallow chassis design, allowing for installation in most wall-mount racks.
• Rear panel detented level controls allow for accurate level settings and secure operation.
• “Contractor-Correct” barrier strip output connectors allow for quick and easy connection, regardless of the load.
• Advanced protection circuitry guards against:shorted outputs, open circuits, DC, mismatched loads, general overheating, high-frequency overloads and internal faults.
• Can be mounted in standard (19-inch (48.3-cm)) rack, shallow (14-inch (35.56-cm)) rack, or stacked on top of each other.
• Accurate, uncolored sound with very low distortion for the best in music and voice reproduction.
• Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifi cations.
• Crown’s Profi t Protection Plan guarantees quick,no-questions-asked replacement of your covered Contractor Series amplifi er should it fail at any time up to 6 months following date of installation.

CH 4

S CR626
Weight: kg
CROWN
Features
• Drives multiple impedances, with both low impedance and high impedance outputs per channel.
• High-pass filter for each channel provides low-frequency roll off to eliminate step down transformer saturation when used in 70V distributed systems.
• Shallow chassis design, allowing for installation in most wall-mount racks.
• Rear panel detented level controls allow for accurate level settings and secure operation.
• “Contractor-Correct” barrier strip output connectors allow for quick and easy connection, regardless of the load.
• Advanced protection circuitry guards against:shorted outputs, open circuits, DC, mismatched loads, general overheating, high-frequency overloads and internal faults.
• Can be mounted in standard (19-inch (48.3-cm)) rack, shallow (14-inch (35.56-cm)) rack, or stacked on top of each other.
• Accurate, uncolored sound with very low distortion for the best in music and voice reproduction.
• Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifi cations.
• Crown’s Profi t Protection Plan guarantees quick,no-questions-asked replacement of your covered Contractor Series amplifi er should it fail at any time up to 6 months following date of installation.