The challenge when using a condenser microphone with a preamp pedal, direct box or stage amp is that most of these only have unbalanced inputs. And as most phantom power supplies are only equipped with balanced inputs and outputs, making 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 or active direct box. Inside, the SB48-UB converts the signal to both a lo-Z balanced XLR output and a hi-Z unbalanced ¼" out. Both outputs may be used concurrently whereby the XLR could feed the PA while the ¼" out could feed a stage amp or pedalboard

The S-phantom gives you an in the field, on location solution for powering
your condenser microphones that need 48 volt power
 
FEATURES:

2 Channel 48 Volt phantom power supply
2 Balanced XLR mic inputs
2 Balanced XLR and 1/4? mic outputs
AC adapter included 

Shure RK-183 Phantom Preamplifier for MX183-184-185

Adam Hall Connectors 4 STAR AT RF2 RF2 Twin Adapter 2 x RCA female to 2 x RCA female

The K6P powering module is at the heart of Sennheiser's professional modular
condenser microphone system. It is similar to the K6 powering module but is
powered by 12 - 48 V phantom power only, for use where battery power is not
required (e.g. permanent installations). The K6P can be combined with various
microphone heads to produce microphones with a variety of pick-up patterns.
Matt black, anodised, scratch-resistant finish.
Profile
Powering module for phantom powering with switch-able roll-off filter suitable for
ME 62 - ME 67 microphone heads and -60 versions of MKE microphones,
transmission factor 0 dB at 1 kHz, nominal impedance 200 Ohm, min. terminating
impedance 1 kOhm, max. output voltage 2 V (at 1 kHz), phantom powering 12 V - 48 V,
supply current 2.2 mA, dimensions in mm: ? 22 x 118, resultant length 52 mm,
weight approx. 30 g.

Features
Switchable bass roll-off filter protects against rumble, handling, pop and wind noise
On/off switch
High output, low noise
Transformerless balanced output on 3-pin XLR connector
Delivery Includes
1 K6P powering module
1 MZQ 200 microphone clamp
1 protective carrying case

Technical Data
Nominal impedance  200 Ohm, symm. 
Min. terminating impedance  1000 Ohm 
Output voltage  2 V (1 kHz) 
Power supply  Phantom 12 - 48 V 
Current consumption  2,2 mA 
Dimensions  d 22 x 52 mm (netto) 
Gain  0 dB