(Last updated 05/19/2006)
May 19, 2006: Under Construction!
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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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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| 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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| Core Sound 2Phant |
|
| Denecke PS-2 |
|
| ART Phantom II |
TBD |
TBD
| Rolls PB224 |
TBD |
Discussion
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|
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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|
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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| 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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|
Core Sound 2Phant
|
TBD
|
|
Denecke PS-2
|
TBD
|
|
ART Phantom II
|
TBD
|
|
Rolls PB224
|
TBD
|
Discussion
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|
Core Sound 2Phant
|
|
|
Denecke PS-2
|
|
|
ART Phantom II
|
|
|
Rolls PB224
|
|
Discussion
|
Core Sound 2Phant
|
|
|
Denecke PS-2
|
|
|
ART Phantom II
|
|
|
Rolls PB224
|
|
Discussion
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|
Core Sound 2Phant
|
|
|
Denecke PS-2
|
|
|
ART Phantom II
|
|
|
Rolls PB224
|
|
Discussion
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|
Core Sound 2Phant
|
|
|
Denecke PS-2
|
|
|
ART Phantom II
|
|
|
Rolls PB224
|
|
Discussion
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