showstack / glossary / phantom-power
Phantom power 幻象電源
48 volts DC sent up the same balanced pair that carries the microphone signal, to power a condenser capsule or an active DI. Equal on both legs, so a balanced input rejects it and a dynamic microphone ignores it.
中文
沿著傳送麥克風訊號的同一組平衡線，送上 48V 直流電，用來供電給電容式麥克風或主動式 DI。兩腳電位相同，因此平衡輸入會將其抵消，動圈麥克風也不受影響。
Regional usage
| Where | Term | Note |
|---|---|---|
| UK / US | Phantom power / 48V | |
| HK / TW | 幻象電源 / 48V |
Easy to get wrong
Phantom is not the same as T-power (A-B powering) and it is not the same as bias for an electret lavalier. Patching a ribbon mic into a live 48V leg can destroy it.
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Sources
- Theatrecrafts glossary of technical theatre terms — Theatrecrafts / ABTT heritage primary
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