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Multi-Way Conventional loudspeakers with crossovers

Rolls PB23 phantom power adapter
Rolls PB23 phantom power adapter
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Old 30th October 2004, 12:45 AM   #1
Danse is offline Danse  Canada
diyAudio Member
Join Date: Sep 2004
Location: Montreal
Question Rolls PB23 phantom power adapter

Does any one have one of these?

Is it any good?


The PB23 and PB223 are for powering phantom powered microphones with either 12VDC or 48VDC. Since the units use a 100KHz switching power supply there is no audio noise generated. They have output pull down resistors so they will work with any mixer and have 2DC jacks so several units can use one adapter. The PB223 is identical to the PB23, except it powers two microphones rather than one.

Rolls accessories are well known throughout the world. We make all kinds of specialty signal adapters, phantom powering devices, a very versatile cable tester, a signal generating device, and more. Many of these "little boxes" are the result of customer suggestions, please contact Rolls if you have any comments.


Phantom power for mics with either 12V or 48V DC
100kHz switching power supply for no audio noise
Output pull down resistors let it work with any mixer
Two DC jacks so several units can use one adapter

Dimensions: 3" x 2.5" x 1.25"
Weight: 1 lb.
Power Input: 14 - 18 VCD (included)
Control: 12/48 volt selector switch
Jacks: Male and Female XLR 2: 5mm DC input jacks
Phantom Voltage: 12V or 48V selectable
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