Crown MA-5000i - 1 Welcome; Table of Contents; Features

Commercial Audio Series Mixer-Amplifiers
Operation Manualpage 4
Commercial Audio Series Mixer-Amplifiers
Operation Manual page 5
Table of Contents
Important Safety Instructions............................................................... 2
Declaration of Conformity .................................................................. 3
1 Welcome ......................................................... 5
1.1 Features ................................................................................. 5
1.2 Front Panel Controls and Indicators ....................................... 6
1.3 Back Panel Controls, Connectors and Indicators.................... 7
2 Setup.............................................................. 8
2.1 Installation.............................................................................. 8
2.2 How to Attach the Unit to a Rack ............................................ 8
2.3 Choose Input Wire and Connectors........................................ 9
2.4 Choose Output Wire and Connectors ................................... 10
2.5 Wire Your System................................................................. 11
2.6 Phantom Power .................................................................... 11
3 Operation....................................................... 12
3.1 Powering Up ........................................................................ 12
3.2 Priority Muting ..................................................................... 12
3.3 Voice-Activated (VOX) Muting ............................................. 12
3.4 Music-On-Hold .................................................................... 12
3.5 Security Knobs ..................................................................... 12
4 Troubleshooting... ............................................. 13
5 Specifications.................................................. 14
6 Service.......................................................... 15
7 Warranty ....................................................... 16
Product Registration...........................................................................19
Factory Service Information Form ..................................................... 21
The Cr own
®
135MA and 160MA are
high-value mixer-amplifiers for com-
mercial audio. They provide 8-ohm
and constant-voltage outputs (70V and
100V). Typical uses are paging, back-
ground music, and music-on-hold.
The 135MA provides 3 inputs (each with
a volume control) and a 35W amplifier
output. The 160MA provides 4 inputs
(each with a volume control) and a 60W
amplifier output.
Other features include priority muting,
voice-activated muting, phantom power,
and Bass and Treble controls.
1 Welcome
1.1 Features
• 3inputs(eachwithavolumecontrol),
and one 35W amplifier output channel
in 135MA
• 4inputs(eachwithavolumecontrol),
and one 60W amplifier output channel
in 160MA
• Idealfor paging, background music,
and music-on-hold
• Balanced Phoenix-type mic/line
input, telephone output, dual RCA
stereo music inputs
• 
Priority mutingby VOX or external
switch
• Bass and Treblecontrols onmaster
output
• Three-Year,No-Fault,FullyTransfer-
able Warranty completely protects
your investment and guarantees its
specifications
1 kHz
Power
35W
Minimum guaranteed power
into 8 ohms or 70V/100V output
135MA
*1 kHz Power: refers to maximum power in watts at
1 kHz with 0.5% THD.
*
1 kHz
Power
60W
Minimum guaranteed power
into 8 ohms or 70V/100V output
160MA
*1 kHz Power: refers to maximum power in watts at
1 kHz with 0.5% THD.
*