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Extended low-frequency performance generally also requires a larger cabinet, which is not a problem for cinema big portable speakers, because they are usually only transported once and then fixedly installed in a place where the audience cannot see. However, for professional audio, a small box means that it is easier to transport to different event sites or install in a limited space. Because cinema low-frequency big portable speakers are installed behind the screen and curtain, the most important dimension for cinema low-frequency big portable speaker is thickness. Height and width are generally not a problem, so larger cabinets or situations where multiple low-frequency big portable speakers need to be deployed can be solved well.
As for the practicality of functions, there are also considerable differences between cinema low-frequency big and professional audio low-frequency big portable speakers. Since large theaters use a lot of low-frequency big portable speakers, cost control is also crucial.
Because cinema low-frequency big portable speakers generally only need to be fixed once, they will not be equipped with the handles that are common on professional audio low-frequency big portable speakers. And the cinema low-frequency big portable speakers are installed in places that are invisible behind the screen, so there is no need to paint or beautify the appearance. They are usually painted in a uniform black, without a logo, and use uniform, non-reflective black parts to ensure that no light will be reflected through the small holes on the screen during movie screenings.