Typically hung above the ceiling tiles, the speakers fill the plenum with sound that gently filters into the environment below to create speech privacy. Spectra I.Net® speakers are perfectly matched for the OP to ensure the highest quality of sound masking. Speakers can be controlled via the system’s networked user interface. The inline speaker option also provides an additional volume control with a remote attenuator. 0 to -12 dB adjustments can be made from the remote.