In-Ceiling speaker with transformer tap and white magnetic grille | The C650T features a 6.5" polypropylene cone driver and a 0.5" mylar dome tweeter. With a frequency response of 65 Hz - 20 kHz (-10 dB) and a maximum SPL of 105 dB SPL, it is well suited for both speech and background music applications. The C650T supports low impedance (50W RMS) and 70/100V operation, with transformer taps ranging from 1.25W to 15W. Spring clamp dog-legs makes installation a breeze, and a cardboard cutout template is included in the box. The white magnetic grille locks firmly to the speaker rim, giving the installation a clean and sleek look.