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HT technical
point No.1
Phantom Powered Balance Output
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What is the Phantom
Power?
Why do you need Phantom Power on your
equalizers?
Phantom power
is designed for an external power supply through the mic cable to the microphone
that produces a signal that can be considerably lower in level hence the need
for an external pre amplifier.
A professional mic outputs its signal via
three-pin XLR connector.
Simply, the phantom signal is, +48 V DC is
piggybacked on top of both AC signals on pin-2 and pin-3 via two resistors,
without disturbance. The negative or "return path" to the DC supply is connected
to pin-1.
A female XLR as mic input and a male XLR to feed the mic signal to
the preamp with a suitable 48 V DC power supply to make the positive and
negative connections.
Applying phantom powered units don't required the
presence of the internal battery and can be supplied by stable external phantom
power.
Most of recently manufactured acoustic amplifiers or mixers provide
phantom power. Even if your amplifier do not supply the phantom power, the
phantom power adapter will be available in your nearest gear
shop. |
