- 8" Cone Ceiling Speaker pre-assembled onto a 13" steel bright white grille- Volume control with knob- 4 Watt capacity- 6 different power taps available (4, 2, 1, 1/2, 1/4, 1/8W)- T725 4-watt transformer- Pre-assembled for faster installation- Works with both 70V and 25V amplifier outputs