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PR-130BT / PR-240BT
Setup
Installation
CAUTION: Before you begin, make sure your mixer amplifier is unplugged from the power source, the power switch is
in the "OFF" position, and all volume controls are set to minimum level (turned counterclockwise).
Location:
Take the unit out of its packaging (keep it for any return to the workshop). The PR-130BT and PR-240BT mixing
amplifiers can be installed in a standard 19" equipment rack or on a shelf. To install the unit in a standard 19"
equipment rack, please use the rack ears that are included with the unit. Do not mount mul�ple units directly on top of
each other, allow a 2U space between the units for convection cooling. If a table or shelf installation is the chosen
route, be sure to choose a flat surface, with 12-inches (about 30cm) of air space around the unit for convection cooling,
and that is free of liquids or other such hazards.
To select an appropriate location for your equipment, you must consider the distance between the mixer amplifier and
the speakers, the need to access the equipment to change the source or adjust the volume, the proximity of the
sockets electrical, etc. You must determine the length of the cables used to connect your equipment to the speakers.
Depending on the type of loudspeakers and the length of the cables, you can choose to route the signals to the
loudspeakers in low impedance or in constant voltage.
If you are using low impedance speakers, you must connect them to one of the low impedance outputs (4 ohms) of the
mixer amplifier with speaker cables. However, pay attention to the diameter and length of the cables. If you are using
loudspeakers with built-in 70V transformers, often referred to as constant voltage systems. The advantage of these
systems is that they allow the use of long cables to connect several loudspeakers to the same amplifier. The
PR-Series mixer amplifiers are ideal for this type of application as they are equipped with 70/100V output transformers.
Using the rack ears
How to attach the rack ears.
1. Locate the two rack ears and four rack-ear screws supplied.
2. Place a rack-ear flush with the right front of the chassis.
3. Insert a screw into the bo�om hole of the rack-ear and chassis. Screw it in.
4. Insert a screw into the top hole of the rack-ear and chassis. Screw it in.
5. Repeat steps 2 to 4 for the le� side of the chassis.
6. Remove the four legs from bottom of unit.
7. Please refer to Figure 2.1
[ Figure 2.1 How to connect rack ears ]
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