Radial Engineering SB-48UB Phantom Power Supply (SB 48UB)

Item ID: MB-SB-48UB
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Radial Engineering SB-48UB Phantom Power Supply (SB 48UB)

The Radial SB-48UB is a unique 48V phantom power supply that enables the artist to power a condenser microphone and then send the balanced signal into the unbalanced input of a guitar amplifier or effect pedal like a Radial PZ-Pre acoustic preamp. 

The challenge when using a condenser microphone with a preamp pedal or stage amp is that most of these only have unbalanced inputs. As most phantom power supplies are only equipped with balanced inputs and outputsmaking a proper connection is often difficult or impossible due to the impedance and level mismatch. 

The SB-48UB is a single-channel phantom power generator that converts the power from a 15VDC supply to 48 volts for use with a condenser microphone. The SB-48UB converts the signal to both a Lo-Z balanced XLR output and a Hi-Z unbalanced 1/4" output. Both outputs may be used concurrently whereby the XLR could feed the PA while the 1/4" out could feed a stage amp or pedal board.

  • Circuit type: Non-radiating phantom power supply
  • Number of channels: 2
  • XLR connectors: AES standard pin-1 Groundpin-2 (+)pin-3 (-)
  • Phantom output: Switchable +48 / +12 volts DC
  • Power supply: 15VDC / 400mA external supply included