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Core Sound 2Phant
How does 2Phant compare with other portable phantom power supplies?

Comparison of Portable Phantom Power Supplies

(Last updated 08/20/2013)

Introduction

Most professional condensor microphones require 48 Volt phantom power. The phantom power supply must be able to provide between 44 and 52 Volts DC at currents up to 10 milliamp (mA) per microphone channel. Some professional microphones (Earthworks microphones specifically) require the full 10 mA of current; anything less will compromise their performance. Others including Schoeps, AKG Schoeps, AKG, CAD Equitek, Shure KSM-series and Neumann microphones require four or more mA.

Studio mixing boards and AC/Mains professional-quality powered phantom power supplies typically can provide the correct voltage and current. Portable battery-powered phantom power supplies are often less capable.

We solicit and appreciate corrections to this document. Please send your comments to:

moskowit@core-sound.com

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Summary

There are only a handful of portable phantom power supplies available today and only two could be considered professional -- Core Sound's 2Phant and Denecke's PS2. The rest either don't provide true 48 Volt phantom power, or provide it for only a very short time.

If you want a phantom power supply that can operate for more than five hours on a single pair of batteries, the you have only one choice: 2Phant.

If you want a phantom power supply that doesn't have to be turned off to change its batteries, you have only one choice: 2Phant.

If you want a phantom power supply that keeps you informed about the state of charge of its batteries, you have only one choice: 2Phant.

If you want more details, please keep reading...

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OPERATING TIME

PORTABLE PHANTOM POWER SUPPLY Operating Time: 48 Volts @ 10 mA/channel, two channels
Core Sound 2Phant 5 hours/3 minutes
Denecke PS-2 18 minutes
ART Phantom II 0 (non-compliant in voltage and load)
Rolls PB224 0 (non-compliant with voltage)
PSC 48V PHantom 2 hours/45 minutes (one channel only)

Discussion

The Denecke PS-2's low battery LED comes on at 4 minutes.

The ART Phantom II only provides 40.6 Volts so it's not compliant with the P48 specification. It also uses 5600 Ohm resistors instead of the required 6800 Ohm resistors, so it's non-compliant in that way too.

The Rolls PB224 only provides 43.2 volts into an open circuit, so it's not compliant with the P48 specification.

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Voltage


TBD
PORTABLE PHANTOM POWER SUPPLY VOLTAGE
Core Sound 2Phant
Denecke PS-2
ART Phantom II TBD
Rolls PB224 TBD

Discussion

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Case Material/Ruggedness

PORTABLE PHANTOM POWER SUPPLY NOISE
Core Sound 2Phant PDA: Metal Case
Metal Case
Denecke PS-2 Metal Case
ART Phantom II TBD
Rolls PB224 TBD

Discussion

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Dimensions

PORTABLE PHANTOM POWER SUPPLY DIMENSIONS
Core Sound 2Phant 1.67 x 3.25 x 5.25 inches
Denecke PS-2 1.25 x 3.0 x 4.0 inches
ART Phantom II TBD
Rolls PB224 TBD

Discussion

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File Formats

PORTABLE PHANTOM POWER SUPPLY WEIGHT
Core Sound 2Phant 10.5 ounces/300 grams
Denecke PS-2 8 ounces
ART Phantom II TBD
Rolls PB224 TBD

Discussion

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Display Size & Type, Controls

PORTABLE PHANTOM POWER SUPPLY CASE MATERIAL AND RUGGEDNESS
Core Sound 2Phant TBD
Denecke PS-2 TBD
ART Phantom II TBD
Rolls PB224 TBD

Discussion

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Battery Type

PORTABLE PHANTOM POWER SUPPLY BATTERY TYPE
Core Sound 2Phant
  • TBD
Denecke PS-2
  • TBD
ART Phantom II
  • TBD
Rolls PB224
  • TBD

Discussion

Low Battery Indication

PORTABLE PHANTOM POWER SUPPLY LOW BATTERY INDICATION
Core Sound 2Phant
  • TBD
Denecke PS-2
  • TBD
ART Phantom II
  • TBD
Rolls PB224
  • TBD

Discussion

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Battery Type

RECORDER OTHER FEATURES
Core Sound 2Phant
  • TBD
Denecke PS-2
  • TBD
ART Phantom II
  • TBD
Rolls PB224
  • TBD

Discussion

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Battery Operating Time (Recording)

PORTABLE PHANTOM POWER SUPPLY PRICE
Core Sound 2Phant
  • TBD
Denecke PS-2
  • TBD
ART Phantom II
  • TBD
Rolls PB224
  • TBD

Discussion

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Analog Inputs

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