Power Tap Selection; Speaker Connection And Polarity; 70V System Configurations; Low-Impedance System Configurations - Bogen MPS1B Installation And Use Manual

Power Tap Selection

16-ohm or 70V
The Power Tap selector switch is used to set the
appropriate power level or impedance for your
system. Rotate the switch until the power level
you require lines up with arrow.
IMPORTANT: When connecting to a 70V amplifier,
make sure that the Tap Selector switch on the
speaker IS NOT set in the "16Ω" position.

Speaker Connection and Polarity

Speaker wiring is terminated at a snap-lock input
connector, with a positive and negative terminal.
All wiring should be done prior to installation and
then plugged into the rear of the speaker. Wire all
speaker polarities the same way.

70V System Configurations

When designing a 70V system, the total of all power tap settings of all the connected
speakers CANNOT EXCEED the output power of the 70V amplifier (amplifier power
can exceed the sum of the speaker loads).
with 70V Output
EXAMPLE: 16 + 32 + 8 + 8 + 16 = 80 Watts minimum amplifier output rating.

Low-Impedance System Configurations

When wiring together multiple MPS1/2 speakers that are set to 16 ohms, it is important to
calculate (using Ohmʼs Law) the total load that these speakers present to the amplifier.
The total load impedance of the interconnected speakers cannot be lower than the
minimum load impedance rating of the low-impedance amplifier. Also, care must be
taken to ensure the amplifier cannot overdrive the speakerʼs maximum power rating.
200W Max. Low-Impedance
EXAMPLE: Four 16 -ohm speakers in parallel = 4 ohms. Also in this example,
the amplifier output power rating capability should not exceed 200W (4 X 50W,
the MPS1/2).
100W Amplifier
Amplifier
POWER TAP
SELECTOR SWITCH
_ +
SNAP-LOCK
WIRING TERMINAL
4-ohm direct
GND
MPS1/2
(Top View)