What is Pre Out on AV Receiver?
In the realm of home theater and audio systems, the term “pre out” refers to a specific feature found on many audio/video receivers (AVRs). An AV receiver is a device that combines the functions of a preamplifier, an amplifier, and a video processor into one unit, making it a central component in a home theater setup. The pre out feature, in particular, plays a crucial role in enhancing the overall performance and flexibility of an AV receiver.
Understanding the Pre Out Feature
The pre out feature on an AV receiver provides a set of preamplified audio outputs that allow users to connect additional amplifiers or processors to the system. Unlike the main amplifiers found in an AVR, which are typically designed to drive speakers directly, the pre out outputs send a low-level signal that can be used to control external amplifiers or processors. This allows for greater customization and flexibility in a home theater setup.
How Pre Out Works
When an AV receiver processes audio signals, it typically does so at a low level, which is then amplified by the internal amplifiers before being sent to the speakers. The pre out feature, however, provides a separate set of low-level signals that can be used to connect external devices. These signals are usually taken from the preamplifier section of the receiver, which is responsible for adjusting the volume, tone, and other audio settings before the signal is sent to the amplifiers.
Benefits of Using Pre Out
There are several benefits to using the pre out feature on an AV receiver:
1. Customization: By using pre out, users can connect additional amplifiers or processors to the system, allowing for greater customization of the audio setup. For example, a user might want to use a separate amplifier for a subwoofer or a dedicated processor for room correction.
2. Improved Performance: In some cases, using a separate amplifier or processor can result in improved audio performance. External devices may offer better quality components, such as transformers or capacitors, which can enhance the overall sound quality.
3. Flexibility: The pre out feature allows users to easily upgrade their home theater system without having to replace the entire receiver. By adding new components to the system, users can adapt to changing needs and preferences.
Conclusion
In summary, the pre out feature on an AV receiver is a valuable addition to any home theater setup. By providing a set of preamplified audio outputs, it allows users to customize their system, improve performance, and maintain flexibility. Whether you’re looking to enhance your current setup or plan to upgrade in the future, understanding the pre out feature can help you make the most of your AV receiver.
