Availability: Available
Abe's Price:
$589.00
Specifications:
Performance:
Frequency Reponse (at 1 watt from 4-ohm tap): 70 Hz to 19 kHz ± 1 dB.
Frequency Response (at line out): 20 Hz to 20 kHz ± 1 dB.
Power Bandwidth (at 4-ohm tap, 2 dB below maximum 1 kHz power): 50 Hz to 20
kHz with < 0.5% THD
Signal to Noise Ratio (ref. to rated power, master volume at minimum): 85
dB.
DC Output Offset: < ±5 mV.
THD: Less than 0.5% at rated power at 1 kHz.
Input Sensitivity (for full output at maximum gain):
Balanced mic inputs: 3 mV.
Balanced line inputs: 800 mV.
RCA connectors: 400 mV.
Input Impedance (nominal):
Mic: 400 ohms.
Line: 100 kilohms.
RCA: 50 kilohms.
Crosstalk: –70dB at 1kHz.
Line Output Level (nominal): 1V into 10 kilohms.
Phantom Power: 15 VDC.
AC Line Voltages Available:
100V 50/60 Hz
120V 60 Hz
220V 50/60 Hz
230V 50/60 Hz
240V 50/60 Hz
Operating Temperature/Humidy: 0° C to 40° C at
95% relative humidity (non-condensing).
Storage Temperature: –20° C to 85° C.
Front Panel Controls and Indicators:
Power Switch: Push button on-off switch. The
power switch does not affect the 24V DC auxiliary
power input.
Input Volume Controls: Microphone/line, four in
180MA and 1160MA, eight in 280MA. Detented
potentiometers with knobs.
Tone Controls: Bass and Treble non-detented
recessed potentiometers on each input channel.
Bass ±10 dB at 100 Hz, Treble ±10 dB at 10 kHz.
Power Indicator: Blue LED indicates power on.
Input Signal Presence Indicator:
Green LED, one
for each input channel, illuminates when input
signal exceeds –24 dBu (line) or –70 dBu (mic).
Output Signal Presence Indicator: Green LED,
one for each output channel, illuminates when
output signal level exceeds 100 mV (45 dB below
full power) from the 4-ohm tap. Does not respond
to signals from the AMP INPUT connector.
Clip Indicators: Red LED, one per
output channel. Illuminates at threshold of audible distortion. Does not respond
to signals from the AMP INPUT connector.
Output Volume Controls: One per output channel. Detented potentiometer
with knob.
Back Panel Controls and Connectors:
Reset Switch: Resets the circuit breaker that protects the power
supply. 220/230/240V units have a fuse instead.
AC Power Inlet: Detachable IEC.
Auxiliary Power Input: 2-position terminal strip for 24 VDC (±10%) backup
power. Accepts up to 14 AWG terminal forks.
Amplifier Outputs Connectors: One per channel,4-position terminal strip
with COM (Common), 4 ohms, 70V and 100V terminals. Accepts up to 14 AWG terminal
forks. Non-touch cover included.
Output VCA Connector: 4-pin Phoenix-type connector for two VCA control
lines of +10 VDC and ground. Compatible with Crown 1-VCAP and 4-VCAP modules.
Amp Config Switch: A DIP switch with two functions:
1. Assigns an input as the priority input for each output, thereby temporarily
muting the remaining inputs. Muting is activated by contact closure.
2. Global enable switch for phantom power. Does not affect RCA inputs. Default
position is off.
Priority Connector: 3-pin Phoenix-type connector allows Input 1 or Input
5 (280MA only) to mute other input signals by contact closure.
Tone
Generator Connector: 5-pin Phoenix-type connector. Tones include
Pre-Announce Chime, Bell, Alert Tone, and Evacuate Tone. All tones are activated
by contact closures on the connector. Internal jumpers can disable tones in an
amplifier channel (excluding Pre-Announce Chime).
Tone Level: One potentiometer per output channel sets the volume of the
tones. Tone level (except Pre-Announce Chime) is not affected by output volume
controls or VCAs.
Chime Level: Potentiometer sets the Pre- Announce Chime level. The
Pre-Announce Chime is mixed with Channel-1 signals, so its level also is
affected by the master volume control and VCAs.
Input Connectors:
Mic/Line Connector: 3-pin Phoenix-type, balanced,
one per input channel.
Dual RCA Input Connector: For stereo music
signals, unbalanced, summed together, two connectors
per input channel.
Amp Input Connector: 3-pin Phoenix-type, high impedance
balanced, one per amplifier channel.
Used to link an additional mixer to the mixer amplifierCan be used to connect an external
processor.
Mic/line Switch: Selects mic-level or line-level
signals. One switch for each balanced input.
Link In/Out Switch: Slide switch, one per channel.With the Link Switch IN, any signal applied to the
Amp Input connector will be mixed with the input
signal(s). With the Link Switch OUT, only the
signal from the Amp Input Connector will appear
at the amplifier output.
Cooling:Convection cooled.
Protection:
Current Limit Protection: Included.
Thermal Limit Protection:
Over-temperature thermal cutout.
DC-Fault Load Protection: Included.
Optional Accessories:
1-VCAP remote volume control for one channel.
4-VCAP remote volume control for four channels.
Dimensions:
EIA Standard 19-inch (48.3-cm) rack mount width(EIA RS-310-B) with rack ears, 3.5-inch (8.9-cm)
height and 12.2-inch (31.0-cm) depth behind the
mounting surface (not including non-touch cover).
4.1 inches (10.5 cm) high including feet. 13.9
inches (35.2 cm) deep from front of knobs to back
of non-touch cover.
Weight
Net Weight:
1160MA: 25.3 lbs. (11.5 kg)
Shipping Weight:
1160MA: 30.3 lbs. (13.8 kg)
