Crown 180max Manual Suplementario

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Crown International
1718 W. Mishawaka Rd.
Elkhart, IN 46517-9439
TEL: 574-294-8200
FAX: 574-294-8FAX
www.crownaudio.com
 180MAx
Architectural & Engineering Specifi cations
C O M M E R C I A L   A U D I O   S E R I E S
180MAx
The Crown
®
 180MAx shall be a tuner-mixer-amplifi er for commercial and 
industrial audio. It shall provide 4-ohm and constant-voltage outputs (25V and 
70V).
The 180MAx shall have 4 inputs (each with a volume control) and one 80W 
power amplifi er.
Specifi cations
The 180MAx shall have the following specifi cations:
Minimum guaranteed power into 4 ohms or 25V/70V output: 80W maximum 
power at 1 kHz with 0.5% THD. Frequency Reponse (at 1 watt from 4-ohm tap, 
70 Hz - 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): Bal-
anced mic inputs 3 mV, balanced line inputs 800 mV, RCA connectors 400 mV, 
Isolated telphone input 75 mV.  Input Impedance (nominal): Mic 400 ohms, line 
100 kilohms, RCA 50 kilohms, Telephone 600 ohms. Crosstalk:  –70dB at 1kHz. 
Line Output Level (nominal): 1V into 10 kilohms. Phantom Power: 15 VDC. 
AC Line Voltages Available: 120V, 60 Hz. Line voltage tolerance +10%, –20%. 
Operating Temperature/Humidity: 0° C to 40 degrees C at 95% relative humidity 
(non-condensing). Storage Temperature: –20° C to 85°C. 
Front Panel Controls and Indicators
Front panel controls and indicators shall include the following:
Power Switch: Pushbutton on-off switch. Input Volume Controls: Four 
detented potentiometers with knobs. Input 1: Microphone/line (switchable)/
telephone, Inputs 2 and 3: Line, Input 4: XM Radio. 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. XM Tuner Menu Button: Selects 
Direct, Preset, or Category mode. XM Tuner Category Buttons: Scrolls through 
categories (rock, classical, news, country, etc). XM Tuner Scroll Knob: Lets 
you scroll through channels and select them. XM Tuner Display: LCD screen 
displays XM channel data (channel number, channel name, artist name, song 
title), 16 station presets and signal strength. Power Indicator: Blue LED indi-
cates power on. Input Signal Presence Indicator: Green LED illuminates when 
input signal exceeds –24 dBu (line) or –70 dBu (mic). Output Signal Presence 
Indicator: Green LED, illuminates when output signal level exceeds 100 mV 
(45 dB below full power) from the 4-ohm tap. Clip Indicator: Red LED on 
output illuminates at threshold of audible distortion. Output Volume Control: 
Detented potentiometer with knob.
Back Panel Controls, Connectors and Indicators
Back panel controls, connectors and indicators shall include the following:
Reset Switch: Resets the circuit breaker that protects the power supply. MOH 
1V Level Control: Trim pot adjusts level for Music-On-Hold 1V output. MOH 
1W Level Control: Trim pot adjusts level for Music-On-hold 1W output. MOH 
Signal Presence Indicator: Flashes when MOH signal is present. MOH Source 
Switch: Switches between Input 3 or XM, and routes the source to MOH 1V 
Line Out and MOH 1W connectors. MOH 1W Select Switch: Feeds 1W MOH 
signal either to amplifi er output or internal speaker. MOH 1V Line Output RCA 
Connectors: Two RCA connectors (mono) for 1-volt output (in parallel with 
600-ohm connectors, so they are isolated). MOH 1W Line Output Connector: 
3-pin Phoenix connector provides Music-On-Hold signal of approximately 1 
watt. MOH 1V Line Output Phoenix Connector: 3-pin Phoenix connector, 600-
ohm transformer-isolated output, provides Music-On-Hold signal of approxi-
mately 1 volt. Phantom Power Switch: Turns phantom power on or off for 
Input 1. Mic/line Switch: Selects mic-level or line-level signal for Input 1. Link 
In/Out Switch: Slide switch. When set to IN, any signal applied to the Amp 
Input connector will be mixed with the input signal(s); when set to OUT, only 
the signal from the Amp Input Connector will appear at the amplifi er output. 
Amplifi er Output Connectors: 4-position terminal strip with COM (Common), 4 
ohms, 25V and 70V terminals; accepts up to 10 AWG crimp-on terminal forks; 
non-touch cover included. XM Radio Stereo Line Out Connector: Dual RCA 
jacks for stereo music out from XM Radio tuner. Preamp Line Out Connector: 
3-pin balanced Phoenix-type connector; post master, pre-VCA; level controlled 
by master volume control. Output VCA Connector: 4-pin Phoenix-type connec-
tor for two VCA control lines of +10 VDC and ground; compatible with Crown 
1-VCAP and 4-VCAP modules. Priority Connector: 3-pin Phoenix-type connec-
tor for push-to-talk mic switch; contact closure activatges ducking; ducking 
does not affect Music-On-Hold outputs or XM stereo line out. Active Indicator: 
LED illuminates when VOX ducking is active. VOX Threshold: Trim pot adjusts 
how loud the voice must be before ducking occurs; can be set for no ducking. 
Priority Release Control: Trim pot adjusts release time of VOX ducking. Mic/
Line Input Connector (Input 1 only): 3-pin Phoenix-type, balanced. Line Input 
Connectors (Inputs 2 and 3 only): 3-pin Phoenix-type, balanced. Dual RCA 
Input Connector: For stereo music signals, unbalanced, summed together, two 
connectors per input for inputs 1, 2 and 3. TEL Input Connector: Transformer-
isolated 600-ohm input, summed into Input 1 for paging from a telephone 
system. Amp Input Connector: 3-pin Phoenix-type, high-impedance balanced. 
Used to link an additional mixer to the mixer-amplifi er; can be used to connect 
an external processor. AC Power Inlet: Detachable IEC. XM Radio Antenna 
Input: Connects to the XM antenna cable.
Miscellaneous
Cooling shall be by convection. Included protection mechanisms shall be cur-
rent limiting, over-temperature thermal cutout, and DC-fault load protection. 
Included accessories shall be a power cord, detachable rack ears, screws for 
rack ears, non-touch cover for output connectors, Phoenix-type connectors, 
spade lugs, XM antenna, and remote control. Optional accessories shall be a 
1-VCAP remote volume control.
The dimensions of the tuner-mixer-amplifi er shall be:
Width (without rack ears): 17.3 in. (43.8 cm). Width (with rack ears): 
EIA Standard 19 in. W (EIA RS-310-B). 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 of non-touch cover): 13.9 in. 
(35.2 cm).
The tuner-mixer-amplifi er shall weigh 20 lb (9.07 kg).
Specifi cations subject to change without prior notice. Latest 
information available at www.crownaudio.com. 
Crown and Crown Audio are registered trademarks of Crown 
International. 
Printed in U.S.A.
© 2006 Crown Audio
®
, Inc.                       1/06   139497-1