Recently more and more manufacturers have started to offer home theater systems with wireless speakers or a . From a homeowners standpoint, eliminating long speaker cable runs is certainly a big plus. Multi-channel surround sound is a fairly new phenomenon and as such many older houses are not wired for rear speakers, not to mention 7.1 systems. As such a wireless solution might be the logical conclusion. But how reliable are these wireless speaker kits in a real-world scenario and do these options really eliminate the dreaded cable clutter?
Looking at available kits, you will notice that most of them, such as the products from Rocketfish or LG will connect two speakers to a wireless receiver unit. As a result, such systems, while eliminating the speaker cable from the front of the room to the rear, do not really eliminate speaker cable but only reduce it. As such products with separate wireless receivers for each speakers, such as the product from Amphony, offer a much cleaner solution since each receiver can be attached directly to the speaker of choice.
When using a wireless option, probably the most important consideration is whether or not the audio quality is affected, i.e. does the audio pick up any noise or distortion during the transmission. A good rule of thumb when picking a wireless system is to use a system where the audio is transmitted in a digital format which will avoid noise common to analog systems. Further, the amplifier inside the wireless receiver unit should be of good quality and introduce minimal distortion. Finally, the size of the wireless unit is worth considering as this unit should be hidden from view.
Another issue to consider is that in a home theater setting is that the sound to all speakers should be in sync with the video and also in sync with each speaker. Some wireless units such as the Rocketfish will introduce a delay in the signal, apparently to cope with interference. As such you should investigate how much the signal travelling to the wireless speaker will be delayed. The Amphony product however specifies a delay of less than 1 ms which should be low enough for pretty much any real-world application. Finally, how reliable are wireless speakers and speaker kits?
But how well do these wireless kits work in a real-world scenario? One of the biggest concerns should be interference from other wireless devices. In the US, wireless devices are restricted to a limited number of frequency bands. Especially the 900 MHz and 2.4 GHz frequency band are increasingly crowded by WiFi, Bluetooth and an array of other devices making interference more of a concern. Picking a system working at an alternate frequency band such as the 5.8 GHz band would naturally reduce the impact from competing devices.
In addition to connecting rear speakers in a home theater setting, another useful application of a wireless speaker kit is setting up speakers wirelessly in another room in cases where installing speaker wire between different rooms presents a challenge or for setting up speakers in your backyard within minutes. The applications are endless.
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nice post. thanks.