NAS BMA 120, Installation & Operation Manual

Page: 2 / 12

BMA SERIES: INSTALLATION & OPERATION MANUAL PAGE 2
The inDESIGN BMA 30, BMA 60, BMA 120 and BMA 240
are high quality mixer amplifiers for commercial and industrial
audio applications.
The BMA series feature 4 Mic/line inputs. Microphone input 1
features a mute so that a Microphone on this channel will mute
all other inputs, useful for paging announcements. The BMA
Series provide either 4 Ohm or constant voltage 100V speaker
outputs. A pre-amp out/power amp in link allows for the mixer
audio signal to be sent to an external equaliser or a booster
amplifier. Shipped with a link fitted.
The mixer amplifiers are part of inDESIGN’s Install Series, which
also includes mixers and power amplifiers. These units provide
excellent features and value.
INTRODUCTION
INTRODUCTION 2
IMPORTANT SAFETY
INSTRUCTIONS 3
INSTALLATION 5
FRONT PANEL 6
REAR PANEL 7
BLOCK DIAGRAM:
• Input
8
• Mix 9
• BMA 30/60 10
• BMA 120/240 11
SPECIFICATIONS 12
CONTENTS
Electrical and Safety Warnings
THESE SERVICE INSTRUCTIONS ARE FOR USE BY QUALIFIED SERVICE PERSONNEL ONLY.
TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT PERFORM ANY SERVICING
OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS
UNLESS YOU ARE QUALIFIED TO DO SO.
CAUTION
The lightening flash with arrowhead
symbol, with an equilateral triangle,
is intended to alert the user to the
presence of un-insulated
“dangerous voltage” within the products
enclosure that may be of sufficient
magnitude to constitute a risk of electric
shock to persons.
WARNING: TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
AVERTISSEMENT: POUR ÈVITER
LE RISQUE D´INCENDIE OU DE CHOCS
ÈLECTRIQUES, NE PAS EXPOSER CET APPAREIL À
LA PLUIE OU À L´HUMIDITÈ
The exclamation point within an
equilateral triangle is intended to
alert the user to the presence of
important operating and maintenance
(servicing) instructions in the literature
accompanying the appliance.