With a backbox you protect the investment of built in speakers and keep sound localized.
Do in ceiling speakers need a box.
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It entirely depends on the speaker.
Do ceiling speakers need mains power.
Most work very well without a back box but some require one or alternatively some kind of compartmenting in the wall or ceiling around it.
In fact in many cases the backbox was the difference between a sound investment and a wasted one.
Typically the manufacturer not the dealer will recommend one option or the other depending on your unique setup.
This is achieved by wiring each ceiling speaker up to the binding posts on the amp.
Failure to install a back box for your in ceiling speakers will dilute the sound quality and lead to noise pollution in other areas of your home.
A back box is usually a flimsy plastic box that fits behind the speaker in the wall or ceiling.
So do in ceiling speakers need a backbox.
It serves a soundproofing function improves audio and protects your speakers.
No ceiling speakers are usually passive speakers which mean they do not have built in amplifiers and instead receive their power via speaker cable that is run from an external amplifier.
But do these in ceiling speakers need a backbox with them.
It usually is not very rigid has no acoustical material inside of it and it hasn t been designed with the proper internal volume needed for best bass performance with no adherence to the theile small parameters of loudspeaker design.