Vision improves on the CS-1300 6.5" ceiling speaker with the CS-1600-- now with a redesigned chassis and an "unusually shallow" back-can.
The 128mm back-can is enclosed and compliant with fire safety standards in some regions. The chassis redesign also allows for more control over frequency response, resulting in improved low frequency performance and more natural sound.
The CS-1600 speakers are low impedance, but installers can add the Vision SP-100V 100-volt-line transformers for use with 100v line amps.