Some balanced output devices, such as T-powered microphones and dynamic ribbon microphones, can be permanently damaged if phantom power is applied to them.If connecting to a product which is suspected of having inadequate output protections and phantom power is not defeatable, use a build-out resistor of roughly 1k ohm in the “hot” leg to help mitigate effects of the phantom voltage.When connecting a single-ended (unbalanced) output device to a balanced mic preamp with phantom, use an isolation transformer at the unbalanced device output to be certain that any phantom that may inadvertently be present is isolated.
![risk pc sound effects risk pc sound effects](https://cdn.thewirecutter.com/wp-content/media/2020/12/computer-speaker-2048px-0228.jpg)
![risk pc sound effects risk pc sound effects](https://www.creativefieldrecording.com/wp-content/uploads/2017/10/Decibels-Etymotic-Blanked-Out-186x300.jpg)
Depending on the design of the device, its output can be permanently damaged if phantom is applied.
![risk pc sound effects risk pc sound effects](https://thegamerhq.com/wp-content/uploads/2020/12/Risk-PC-Game-Download.png)
All Sound Devices mixers and recorders that include microphone preamplifiers offer phantom power, conforming to the IEC specification. Phantom power is an important and essential feature of a microphone preamplifier.