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Distribution Unit
User Guide
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CONTENTS
1. Introduction Page 2
2. Technical Specifications Page 3
3. Installation
3.1 Inspection and un-packing Page 4
3.2 Operating environment Page 4
3.3 Power requirements & Line voltage switch Page 4
4. Description of controls Page 5
5. Warranty Page 6
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1.0 INTRODUCTION
The DA82 is a compact distribution amplifier, configurable for mono (1x8) or stereo (2x4)
operation.
Each input and output is switchable between calibrated and uncalibrated mode, allowing instant
adjustment of input sensitivity and output level. All inputs and outputs are electronically
balanced on XLR's .
The DA82 is ideal for O.B. vans, sound reinforcment systems, theatres and any application
where its ease of installation and setup will be greatly appreciated.
The DA82 is built in accordance with EMC and safety regulations encompassed by the CE
marking, guaranteeing trouble free integration into systems.
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2.0 TECHNICAL SPECIFICATIONS
ELECTRICAL
Input Impedance 20KΩ Balanced
Maximum Input Level +20dBu
Input Gain Adjustable -6 to +6dB
Output impedance 75Ω Balanced
Recommended Output Load 600Ω to Infinity
Maximum Output Level +20dBu
Output Gain Adjustable -12 to +6dB
Frequency Response
20Hz to 20KHz +0, -1dB
Total Harmonic Distortion
1KHz, +4dB 0.05%
Noise
20Hz to 20KHz -98dBu
PHYSICAL
Input Connectors XLR 3 pin Female Pin 2 Hot
Output Connectors XLR 3 pin Male Pin 2 Hot
Size W 482mm, D 164mm, H 44mm
Weight 2.9 Kg
Shipping Weight 3.6 Kg
Temperature Range
Operating -0º C to +50º C
Storage -30º C to +75º C
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3.0 INSTALLATION
IMPORTANT: PLEASE READ THIS SECTION BEFORE USING THE DA82
3.1 INSPECTION AND UNPACKING
The DA82 has been carefully packed at our factory in a carton designed to withstand handling
in transit.
Should the unit appear to have been damaged in transit, do not discard any of the packing
material and notify the carrier immediately as it is he who is responsible.
The carton should contain -
• The DA82 unit
• Power cord
• Operator Manual (this book)
If any of the above is missing, notify your supplier immediatly.
3.2 OPERATING ENVIRONMENT
The DA82 is designed to operate between 0 and 50°C (32-122°F) with relative humidity no
more than 80%. Should the unit be installed in an equipment rack, ensure that the environment
conforms to these levels.
Should the unit be installed in an equipment rack, it is important to ensure that the operating
temperature inside the rack does not exceed the upper limit. This could be the case where the
rack contains power amplifiers, a cooling fan may be necassary in such installations.
3.2 POWER REQUIREMENTS
The voltage is normally pre-selected at the factory for the country of destination, a sticker will
indicate the voltage the unit has been set for.
3 versions exist:
230V
110-125V
100V
Ensure that the correct fuse is used
0.1 Amp Quick Blow for 200 - 250V
0.2 Amp Quick Blow for 100 - 125V
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4.0 DESCRIPTION OF CONTROLS
1. Cal/Uncal switch. Switches gain control between pot and
trimmer adjustment.
2. Cal trimmer adjustment for input gain, ranging from –6 to
+6dB. Requires a flat-bladed screwdriver.
3. Uncal potentiometer adjustment for input gain, ranging from –6
to +6 dB.
4. Stereo/Mono mode switch: In stereo mode, input A is routed to
odd numbered outputs, while input B is routed to even
numbers. Mono mode feeds input A only to all eight outputs.
Output gains remain independent in both stereo and mono
modes.
5. Cal/Uncal switch. Switches output volume control between pot
and trimmer adjustment.
6.
Cal trimmer adjustment for input gain, ranging from –6 to
+6dB. Requires a flat-bladed screwdriver.
7. Uncal potentiometer adjustment for output volume, ranging
from –6 to +6 dB.
8. Power indication light. Glows blue when unit is
operational.
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5.0 WARRANTY
Your LA Audio DA82 has been manufactured to a high standard using quality components. If
correctly installed and operated the unit should give years of problem free operation.
However in the event of a defect in material or workmanship causing failure of the unit within
one year of the date of original purchase we will agree to repair, or at our discretion replace,
any defective item without charge for labour or parts. To receive service under this warranty it
is necessary to return the unit to an LA Audio authorised service centre or to the factory with a
dated receipt as proof of purchase. After repair the unit will be returned to you free of charge.
Limitations:
This warranty does not cover damage resulting from accident or misuse. The warranty is void
unless repairs are carried out by an authorised service centre. The warranty is void if the unit
has been modified other than at the manufacturers instruction. The warranty does not cover
components which have a limited life, and which are expected to be periodically replaced for
optimal performance. We do not warrant that the unit shall operate in any way other than as
described in this manual.
LA Audio reserves the right to alter any feature or specification without prior notice E&OE
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