Rolls PB224 Power Supply User Manual


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INTRODUCTION
Thank you for purchasing the PB224 Mic Power IIb Dual 48 Volt Phantom
Power Supply. This unit is designed and manufactured to provide 48 volts
of clean dc power for two of your favorite condenser microphones on two
9 volt alkaline batteries, or the Rolls PS27 AC adapter.
Powered microphones provide much greater dynamic range, lower noise,
and better sound quality.
OPERATION
As shown in Figure 1, connect the two condenser microphones to three
conductor XLR cables, and to each Input connector on the PB224.
Connect the PB224 Outputs to a mixer or other audio input devices via
other XLR cables.
Make sure the PB224 has two fresh 9 Volt alkaline batteries installed, or
the Rolls PS27 adapter is connected to an AC outlet and to the 12VDC
input. Apply power to the unit by moving the power switch to the on
position. The LED on the front of the unit will light. The PB224 provides
no audio gain as it is not a microphone preamp.
SPECIFICATIONS
Phantom Voltage: 48V
Jacks: 2 ea: Male and Female XLR jacks,
5mm DC input jack
Power Input 2 ea: 9V Alkaline Batteries
12 - 18 VCD (Rolls PS27)
Size: 5.45" x 2.875" x 2.25"
Weight: 2 lb (.9 Kg)
SCHEMATIC
CONNECTION
Figure 1
To mixer
or mic preamp.
To mixer
or mic preamp.
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