A Few Secrets To Help Select A Cordless Surround Sound Kit

A Number Of Tricks To Help Pick A Wireless Surround Sound Package

Recently more and more wireless surround sound transmitter products have emerged which claim to deliver the ultimate freedom of broadcasting music throughout the house. We will look at the most widespread technologies for wireless audio and give some recommendations for selecting the best wireless audio product.

If your home is not wired for audio then you face quite a problem when you want to get your music from your living room to your bed room. Frequently the audio source cannot be moved. Running speaker wires between rooms will be expensive and as a result many people are searching for alternatives. Devices which resolve this problem are usually based on the following technologies: infrared wireless, RF wireless, wireless LAN or powerline.

Infrared is restricted to line of sight since the audio signal is sent as lightwaves and consequently devices utilizing this technology, such as infrared wireless surround sound products, are limited to a single room.

RF wireless products broadcast the music as RF waves - either by using FM transmission or digital transmission - and can therefore easily transmit through walls. FM transmitters are the least expensive alternative. They offer decent range but the audio signal is prone to audio distortion and hiss and is very susceptible to interference from other wireless transmitters.

Products which employ digital wireless audio transmission utilize a digital protocol. Such devices include transmitters from Amphony. In this protocol, prior to transmission the audio signal is converted to digital data. This method guarantees that the audio quality is completely preserved. Some transmitters employ some sort of audio compression, such as Bluetooth transmitters, which will degrade the audio to some extent. Transmitters which send the audio data uncompressed will achieve the maximum fidelity.

WLAN products are useful for broadcasting audio from a PC. However, wireless LAN was never designed for real-time audio streaming. As a consequence, products utilizing WLAN will introduce some amount of delay to the signal. WLAN receivers usually require buying a separate LAN card to be plugged into every receiver.

Powerline products broadcast the audio by means of the power mains and provide large range. They run into trouble in homes where there are individual mains circuits in terms of being able to cross over into another circuit. Powerline products have another problem in the form of power surges and spikes which can cause transmission errors. To avoid audio dropouts, these products will usually have an audio latency of several seconds as a safeguard.

Now we'll give you some pointers for shopping for a wireless system: Go for a system that supports numerous wireless receivers if you plan to stream audio to several rooms so that you don't have to purchase a separate transmitter for each receiver. Some products have some form of error correction built in which will help guard against dropouts in case of strong wireless interference. Choose a digital RF transmitter to maintain the original audio quality, ideally one with an audio latency of less than 10 ms in case of video or other time-sensitive applications.

Choose a transmitter that get more info has all the audio inputs you need, such as speaker inputs, line-level RCA inputs etc. Select a system where you can add receivers later on which offer all of the required outputs, e.g. amplified speaker outputs, RCA outputs etc. Select a transmitter that can adjust the audio volume of the input stage. This will give you the flexibility to connect the transmitter to any kind of equipment with different signal levels. Otherwise the audio may get clipped inside the transmitter converter stage or the dynamic range is not fully utilized.

For high amplifier power efficiency and greatest sound quality, verify that the amplified receiver has a built-in low-distortion digital amplifier. Make sure the receivers can drive speakers with your preferred Ohm rating. Picking a product where the wireless receivers have a small footprint and easy mounting options will help in the course of the set up. Products using the less crowded 5.8 GHz frequency band will normally have less problems with wireless interference than 900 MHz or 2.4 GHz products.

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