The 180MAx is the first integrated tuner-
mixer-amplifier designed for commercial
use. Applications include restaurants, retail
stores, coffee shops and other commercial estab-
lishments.
Built into the 180MAx is an XM Radio tuner that
receives satellite radio stations with digital sound
quality. A front-panel LCD screen displays XM
Radio channel data (channel number, channel
name, artist name, song title), 16 station presets
and signal strength.
The unit also accepts signals from line, telephone,
or microphone (phantom power included). Bass
and treble controls allow the user to tailor the
tone quality of the sound system. The priority
ducking feature drops the volume of the back-
ground music when a microphone is used. A VOX
sensitivity setting controls how loud the voice
must be before ducking occurs.
Units can be linked to increase the number of
input and output channels.
The built-in power amplifier provides 80 watts into
4-ohm and 25V/70V outputs for sound system-
loudspeakers. Current and thermal limiting protect
the amplifier and loudpeakers from accidental
overload.
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
maxium 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.
Isolated telephone 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° C
at 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 detented potentiom-
eters 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 chan-
nel data (channel number, channel name, artist
name, song title), 16 station presets and signal
strength.
Power Indicator: Blue LED indicates 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
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 amplifier 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.
COMMERCIAL AUDIO SERIES
• Ideal for commercial and industrial use
• 4 inputs (each with a volume control) and one
80W amplifier output channel
• Independent bass and treble controls for
each input
• Balanced Phoenix-type mic/line inputs;
touch-proof screw-terminal speaker outputs
• Programmable XM tuner with XM channel
data display
• Priority ducking
• Music-On-Hold outputs
• Three-Year, No-Fault, Fully Transferable
Warranty completely protects your invest-
ment and guarantees its specifications
Features
180MAx
1 kHz
Power
80W
Minimum guaranteed power
into 4 ohms or 25V/70V output
180MAx
*1 kHz Power: refers to maximum power in watts at
1 kHz with 0.5% THD.
*
