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18802
User Manual
31 pgs826.14 Kb0

Monoprice 18802 User Manual

Commercial Audio 4x 120-watt 5-channel 4-zone 100/70V
Mixer/Matrix Amplifier with Digital Media Player
P/N 18802
User's Manual
CONTENTS
Front Panel ............................................................................................................................................................................................ 8
Rear Panel ...............................................................................................................................................................................................9
Remote Control ................................................................................................................................................................................ 11
Speaker Connections ................................................................................................................................................................. 13
Line Out Connections ............................................................................................................................................................... 14
Connecting a Telephone Paging System ................................................................................................................. 15
FM Antenna Connection ......................................................................................................................................................... 15
Monitor Connection ................................................................................................................................................................... 16
Setting Priority ................................................................................................................................................................................ 16
Microphone and Line Connections ............................................................................................................................... 17
RS-232 Connection ....................................................................................................................................................................... 17
Power Connection ........................................................................................................................................................................ 17
Sample Connection Diagram ............................................................................................................................................. 18
Block Diagram ................................................................................................................................................................................... 19
Channel and Zone Controls ................................................................................................................................................. 22
Media Player Controls .............................................................................................................................................................. 23
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Bluetooth® Connection .......................................................................................................................................................... 24
FM Playback ...................................................................................................................................................................................... 24
MP3 Recording ............................................................................................................................................................................... 24
RS-232 Control ................................................................................................................................................................................ 25
Notice for FCC ................................................................................................................................................................................ 30
Notice for Industry Canada ................................................................................................................................................... 31
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SAFETY WARNINGS AND GUIDELINES
Please read this entire manual before using this device, paying extra attention to these
safety warnings and guidelines. Please keep this manual in a safe place for future
reference.
Do not install this device on an unstable surface where it could fall and cause
either personal injury or damage to the device and/or other equipment.
This device is intended for indoor use only. Do not expose this device to water or moisture of any kind. Do not place drinks
or other containers with moisture on or near the device. If moisture does get in
or on the device, immediately unplug it from the power outlet and allow it to
fully dry before reapplying power.
Do not touch the device, the power cord, or any other connected cables with
wet hands.
Do not expose this device to excessively high temperatures. Do not place it in,
on, or near heat sources, such as a fireplace, stove, radiator, etc. Do not leave it
in direct sunlight.
This device ventilates excessive heat through the slots and openings in the case.
Do not block or cover these openings. Ensure that the device is in an open area
where it can get sufficient airflow to keep from overheating.
Do not place or install this device in an area where it can be exposed to
excessive amounts of dust, humidity, oil, smoke, or combustible vapors.
Use only in a well-ventilated area. Do not use in close, confined spaces. Prior to operation, check the unit and power cord for physical damage. Do not
use if physical damage has occurred.
Before plugging the unit into a power outlet, ensure that the outlet provides the
same type and level of power required by the device.
This device uses a grounded power cord and requires a ground connection for
safe operation. Ensure that the power source has a proper ground connection.
Do not modify the plug or use a "cheater" plug to bypass the ground connection.
Disconnect the unit from the power source when replacing the fuse. Replace the
fuse only with the same type.
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Unplug this device from the power source when not in use. Take care to prevent damage to the power cord. Do not allow it to become
crimped, pinched, walked on, or become tangled with other cords. Ensure that
the power cord does not present a tripping hazard.
Never unplug the unit by pulling on the power cord. Always grasp the connector
head or adapter body.
Ensure that power is turned off and disconnected before making any electrical
connections.
Remove the batteries from the controller if it will go unused for a lengthy period
of time.
Clean using a soft, dry cloth only. Do not use chemical cleaners, solvents, or
detergents. For stubborn deposits, moisten the cloth with warm water.
This device has no user serviceable parts. Do not attempt to open, service, or
modify this device.
If using this amplifier to drive a 70V or 100V speaker array, ensure that the total
wattage rating of the speaker array does not exceed 80% of the amplifier's rated
RMS power level, i.e., 96 watts.
Because high voltage is present on the 70V and 100V speaker output terminals,
always use the terminal covers to prevent electric shock from accidental contact.
Do not attempt to connect more than one speaker type to each Zone. You can
have a 4Ω load on one Zone and a 70V or 100V constant voltage speaker array
on another Zone, but cannot mix any of the different types of speaker arrays on
a single Zone.
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INTRODUCTION
Thank you for purchasing this 5-channel 4-zone Mixer/Matrix Amplifier! This amp
features three combination XLR/TRS balanced/unbalanced inputs, which can be set to
accept a standard microphone input, a microphone input with +48V phantom power, or
a line level input. It also has two unbalanced stereo RCA line level inputs. It has four
independent 120 watt amplifiers, which can drive 4-ohm loads or a 70V or 100V
constant voltage speaker array. A media player is included, which features a built-in FM
tuner and an mp3 player, which can playback files from a drive connected to the USB
port or an SD™ card inserted in the SD/MEDIA slot. It includes thermal, short-circuit,
clipping, and overload protection circuits, as well as a ground lift switch. It can also
interface with external phone systems for telephone paging.
FEATURES
Four independent 120-watt amplifiers capable of driving 4Ω loads, as well as 70V
or 100V constant voltage speaker arrays
Three combination XLR/TRS balanced/unbalanced inputs capable of connecting
microphone level, microphone level with Phantom power, or line level sources
Two unbalanced stereo RCA inputs Independent gain controls on all inputs Any input can be directed to any or all outputs Balanced line outputs for each zone Built-in media player with FM tuner and mp3 player for playback of files on a
connected USB drive or an SD™ card
Can record the active audio sources and save as mp3 files on a connected USB
drive or SD card
RS-232 serial control Can interface with external phone systems for telephone paging Thermal, short-circuit, clipping, and overload protection circuits 1-watt, 8-ohm amplifier for driving a monitor speaker Ground lift option
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CUSTOMER SERVICE
The Monoprice Customer Service department is dedicated to ensuring that your
ordering, purchasing, and delivery experience is second to none. If you have any
problem with your order, please give us an opportunity to make it right. You can
contact a Monoprice Customer Service representative through the Live Chat link on our
website www.monoprice.com or via email at support@monoprice.com. Check the
website for support times and links.
PACKAGE CONTENTS
Please take an inventory of the package contents to ensure you have all the items listed
below. If anything is missing or damaged, please contact Monoprice Customer Service
for a replacement.
1x 5-channel 4-zone mixer/matrix amplifier
1x AC power cord
1x User's manual
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PRODUCT OVERVIEW
Front Panel
1. MUTE Button and LED Indicator: The LED illuminates when Mute has been
activated.
2. Z1-Z4 Buttons: Zone selector buttons for the built-in Media Player. The buttons
illuminate when selected.
3. Monitor Level Indicators: LED indicators show the overall output level for the
Monitor.
4. Monitor LEVEL Knob: Adjusts the overall volume level of the Monitor.
5. Zone 1-4 Level Indicators: LED indicators show the output level for each of the
four Zones.
6. Zone 1-4 Monitor Buttons: Buttons to enable or disable the Monitor for each of
the four Zones. The button will illuminate when selected.
7. Zone 1-4 LEVEL Knobs: Adjusts the individual volume level for each of the four
Zones.
8. Power Switch: Powers the amplifier on or off.
9. POWER/PROTection LED Indicator: The LED illuminates blue when the amplifier
is powered on and illuminates red when the amplifier is in protection mode.
10. Channels 1-5 TREBLE Controls: Cuts or boosts the high frequency output of each
individual Channel. The adjustment range is -10dB to +10dB.
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11. Channels 1-5 BASS Controls: Cuts or boosts the low frequency output of each
individual Channel. The adjustment range is -10dB to +10dB.
12. Channels 1-5 LEVEL Knobs: Adjusts the volume level for each individual Channel.
13. Media Player: The Media Player consists of a built-in FM tuner and an mp3 player
with an associated SD™ card slot USB port. See the
section for operating details.
Rear Panel
Media Player Controls
1. AC Input Connector and Fuse Holder: Plug the included AC power cord into the
panel connector. To change the fuse, use a small screwdriver to pry the fuse
holder open. A spare T12AL 250V fuse is included inside the fuse holder.
2. TELephone Zone Selector DIP Switch and VOLUME Control: Selects which Zones
that the Telephone input will broadcast and adjusts to the Telephone input
volume level.
3. Channel 5 Line Input and GAIN Control: Stereo RCA connectors for the Channel 5
Line input and control for adjusting the amount of gain to apply to the input.
4. Channel 4 Line Input and GAIN Control: Stereo RCA connectors for the Channel 4
Line input and control for adjusting the amount of gain to apply to the input.
5. Channel 3 Input and GAIN Control: Combination XLR/TRS connector for the
Channel 3 input and control for adjusting the amount of gain to apply to the
input.
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6. Channel 2 Input and GAIN Control: Combination XLR/TRS connector for the
Channel 2 input and control for adjusting the amount of gain to apply to the
input.
7. Channel 1 Input and GAIN Control: Combination XLR/TRS connector for the
Channel 1 input and control for adjusting the amount of gain to apply to the
input.
8. REMOTE MICrophone Input: Not used.
9. RS232 Port: DE-9 (aka DB-9) male connector to connect a computer for
automated control. See the RS-232 Control section for details.
10. Channels 1-3 Input Type Switches: Slide switches to select the type of input
signal for Channels 1-3. Set the switch to the LINE position for line level input, the
MIC position for input from a dynamic microphone, or the PHANTOM position
for input from a condenser microphone that needs +48V phantom power.
11. Cooling Fan: Cooling fan and ventilations holes. Do not cover the ventilation
holes.
12. Zones 1-4 OUTPUT Connectors: Speaker connectors for the output of each
individual Zone.
13. Zones 1-4 LINE OUTputs: Balanced and unbalanced line output connectors for
each individual Zone. Whatever is being output to the speakers will be output as
a line level signal for each individual Zone.
14. Antenna Input: Input connector for connecting a 300-ohm FM antenna.
15. TELephone PAGING Input: Balanced input connectors for connecting an external
telephone paging system.
16. PRIORITY Terminals: The normal priority order of the inputs is:
Channel 1, Telephone, Channel 2, Channel 3, Channel 4, Channel 5, Media
Player
When the priority input contacts are closed/shorted, the priority order is:
Telephone, Channel 1, Channel 2, Channel 3, Channel 4, Channel 5, Media
Player
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