The SF 228T Plus delivers full frequency range and exceptional sonic performance with an 8" coaxial two-way driver in a design optimized for easy installation into US style suspended ceilings. It provides an extended low frequency range with deeper bass output than typical ceiling speakers. This low frequency extension is achieved through a long-throw woofer mated to a tuned-port enclosure, plus a large transformer for distortion-free low frequency output.

The front panel design provides the rigidity and stiffness to minimize enclosure vibrations that would otherwise compromise sound quality. A lightweight housing is utilized to create an enclosure that balances acoustic performance with installation safety. The SF 228T Plus weighs less than 20 pounds (9 kg), allowing the speaker to meet ceiling-mounting codes without additional permits when installed in classrooms.

Integrator-friendly features include an internal tap selector switch, cable/conduit access cover with secondary knockout, and splicing connectors that make it easy to connect speaker wires without tools.

The SF 228T Plus offers 70 volt or 100 volt operation and provides switch selectable power taps for 64, 32, 16, and 8 watts. The transformer can be bypassed for 8 ohm operation.

For easy installation, the SF 228T Plus drops into the same space as a standard 2' x 2' tile, and includes a T-bar for 2' x 4' ceilings. It also provides theft deterrence with a neutral white, perforated steel grille that matches the appearance of standard air conditioning vents and grid ceilings.