Phantom power in audio equipment works by sending a DC voltage through the microphone cable to power condenser microphones. This voltage is typically around 48 volts and is provided by the audio interface or mixer. The phantom power is sent through the same cables that carry the audio signal, allowing the microphone to operate without the need for a separate power source.
Devices such as condenser microphones, active direct boxes, and some audio interfaces require phantom power to operate. Condenser microphones, in particular, rely on phantom power to provide the necessary voltage for their internal circuitry to function properly. Without phantom power, these devices may not work at all or may produce a weak or distorted signal.
Dolby Cinema combines Dolby Vision projection, Dolby Atmos sound, and a premium auditorium experience with Dolby-designed lighting and reclining seats. Through a new offering, Dolby will soon make its superb Dolby Vision projection systems available to theater owners outside of the exclusive Dolby Cinema bubble. This means theaters will be able to offer both Dolby Vision and Dolby Atmos without going all-in on the premium Dolby Cinema experience. Read on to learn more.
Posted by on 2024-07-01
We’re often asked how to build a stereo or home theater system. Where do you start? Theo Nikolakis put together a thoughtful video covering this expansive topic. Read on to learn Theo’s philosophy of how to approach system-building to achieve audio happiness.
Posted by on 2024-06-25
Lenbrook, the parent company to Bluesound, NAD, and PSB, is partnering with audio download site HDtracks to launch a new streaming service later this year. The service will offer customers a choice between FLAC files and MQA-encoded audio. It will also use the MQA-developed SCL6 transmission technology, now called AIRIA, to deliver scalable lossless audio. Read on to learn more.
Posted by on 2024-06-19
Here’s the first glimpse of MQA since Lenbrook, the parent company to PSB, NAD, and Bluesound, purchased the company last autumn. The newly-formed MQA Labs unveiled three new technologies: AIRIA, FOQUS, and QRONO. AIRIA is a rebrand of the SCL6 transmission codec, but FOQUS and QRONO appear to be new developments. Read on to learn more.
Posted by on 2024-06-18
If phantom power is not used correctly, it can potentially damage microphones or other equipment. For example, sending phantom power to a dynamic microphone that does not require it can cause damage to the microphone's internal components. It is essential to check the specifications of the equipment being used to ensure that phantom power is only applied to devices that require it.
Audio Cabling and Wiring for Commercial Audio System Installation
Different audio equipment may require different voltage levels for phantom power. While the standard voltage for phantom power is 48 volts, some devices may operate with lower voltages such as 12 volts or 24 volts. It is crucial to match the voltage level of the phantom power supply with the requirements of the equipment to prevent any damage or malfunction.
One common misconception about phantom power in the audio industry is that it can enhance the sound quality of microphones. In reality, phantom power is simply a means of providing power to certain types of microphones and devices and does not directly affect the sound quality. Another misconception is that all microphones require phantom power, when in fact, only condenser microphones and a few other devices need it to operate.
In some cases, alternative power sources can be used instead of phantom power for certain devices. For example, some condenser microphones may have the option to be powered by a battery instead of phantom power. Additionally, external power supplies or battery packs can be used to power devices that do not have built-in phantom power capabilities. It is essential to consult the equipment's manual or manufacturer to determine the best alternative power source for specific devices.
When integrating audio cabling with background music systems, there are several considerations to keep in mind. It is important to ensure that the audio cables are of high quality to prevent signal loss or interference. Proper cable management is also crucial to avoid tangling or damage to the cables. Additionally, the length of the cables should be appropriate for the distance between the audio source and the speakers. Grounding and shielding techniques may need to be implemented to reduce noise and ensure clear sound quality. Compatibility between the audio cables and the equipment being used is essential for seamless integration. Overall, attention to detail and adherence to best practices in audio cabling are key to successfully integrating with background music systems.
To ensure compliance with fire safety regulations when installing audio cables, it is important to follow the guidelines set forth by the National Fire Protection Association (NFPA) and the National Electrical Code (NEC). This includes using plenum-rated cables in plenum spaces, which are specifically designed to limit the spread of fire and smoke. Additionally, it is crucial to properly secure and route cables to prevent overheating and potential fire hazards. Utilizing fire-resistant cable management systems, such as fire-rated conduit or cable trays, can also help maintain compliance with fire safety regulations. Regular inspections and maintenance of the audio cable installation are essential to ensure continued adherence to fire safety standards.