Scalability affects the sound masking system’s ability to be installed in facilities of varying size. Systems utilizing a lot of centralized equipment may not be cost-effective for smaller installations and can also pose problems in very large installations - because hundreds of square feet of core space may be required for equipment racks.

It can also be a challenge to maintain very large decentralized sound masking systems that require local adjustments be made at each loudspeaker. The ceiling will have to be accessed in numerous locations in order to reach the controls or rewire the loudspeakers.

Sound masking systems that offer integrated audio components and centralized control of individual or groups of loudspeakers are appropriate for installations of any size.