Roland KC100, KC 150 Piezo Horn Tweeter T-1005 SS Audio tweeter for Roland KC100, KC150, Piezo Horn Tweeter Part # T-1005 Size: 3-1/4" (4-1/2" diagonally), Hole cut-out: 2-3/4", Depth: 2-3/4" Specs - Power: 75 watts, Response: 3.5 kHz - 27 kHz, Sensitivity: 94 dB Popular replacement tweeter for home, automotive, and professional speakers Similar to KSN1005, 5100027009