The transmitter must be physically connected to the receiver’s preamplifier output, otherwise the packaged home theatres system may include a built-in or plug-in radio transmitter.
The transmitter sends music/movie soundtrack information to a speaker or auxiliary amplifier with a built-in wireless receiver. However, another connection is required to complete the process: power. Because power cannot be delivered wirelessly, the speaker needs additional power to operate in order to create an audio signal that is transmitted wirelessly so that you can actually hear it.
This means that the speaker still has to be physically connected to a power source and amplifier. The amplifier can be built directly into the speaker housing, in some cases the speaker is either battery powered or physically connected with speaker wires to an external amplifier connected to AC power.
One way the so-called wireless speakers are applied to some Home-Theatre-in-a-Box systems that tout wireless surround speakers is to have a separate amplifier module for the surround speakers.
This means that the main receiver unit has a built-in amplifier that physically connects to the left and right front speakers, but has a transmitter that sends the surround sound signal to another amplifier module at the back of the room. The surround speakers are then wired to a second amplifier module at the back of the room. I didn’t remove the wires, I just moved them to where they are. Of course the second amplifier still needs to be plugged into an AC power outlet, which means another “cable”.
In your wireless speaker setup, you may have removed the long wires that normally go out of signal sources like stereo or home theatres receivers, but you still need to connect the so-called wireless speakers to their own power source or to a second power source. amplifier module. This can limit speaker placement as distance from available AC power outlets is a major concern. If you don’t have a convenient AC outlet nearby, you may need a rather long AC power cord.
An example of a home theatres in-a-box system that includes wireless surround speakers (and a built-in Blu-ray Disc player) is the Samsung HT-J5500W, originally released in 2015 but still available. Other examples of boxed home theatre systems (without the built-in Blu-ray Disc player) that offer a wireless surround speaker option are the Bose Lifestyle 600 and 650. Systems such as the Vizio SB4451-CO, SB46514-F6 and Nakamichi Shockwafe Pro are packaged with a soundbar for the front channels and also have a wireless subwoofer for receiving bass and surround sound signals. The subwoofer sends surround sound signals to the two surround sound speakers through physical speaker wire connections.
One option for a more practical wireless surround speaker is the solution Sonos offers with the Play bar, Play base, or Beam Systems. This product provides built-in amplification and speakers for left, centre and right channels on your soundbar or sound base. Sonos also gives users the option to add an optional wireless subwoofer, as well as the ability to synchronize with two independently amplified Sonos Play:1 and PLAY:3, expanding to a full 5.1-channel surround sound system. provide. , or the Sonos One wireless speaker. These speakers double as wireless surround speakers for Play bar, Play base or Beam, or they can serve as standalone wireless speakers for streaming music.