| Frequency Range (-10 dB) | 68 Hz – 17 kHz |
| Power Capacity (at low-Z) | 40 Watts Continuous Program Power 20 Watts Continuous Pink Noise |
| Transformer Taps | 15 W, 7.5 W, 3.8 W @ 70V and 100V (& 1.9 W @ 70V only) |
| Frequency Response (±3 dB) | 95 Hz – 15 kHz |
| Nominal Sensitivity | 84 dB |
| Nominal Coverage Angle | 130° conical coverage |
| Directivity Factor (Q) | 9.8 |
| Directivity Index (DI) | 7.4 dB |
| Rated Maximum SPL | 97 dB @ 1 m (3.3 ft) average, 103 dB peak |
| Nominal Impedance | 8 ohms (in direct/bypass 8Ω setting) |
| Full-Range Driver | 76 mm (3 inch) with polypropylene cone, butyl rubber surround, Kapton™ voice coil former, high temperature voice coil, aluminum coupling ring for low distortion and HF extension |
| Input Connectors | Removable locking 4-pin connector with screw-down terminals. Max wire size 12 AWG (2.5 mm2) |
| Connector Wiring | Pin 1 = + In; Pin 2 = - In; Pin 3 = + Loop Thru; Pin 4 = - Loop Thru |
| Strain Reliefs | Strain relief for two cables or two flex conduits via coupled clamping mechanism |
| Materials | ABS baffle with UL94-V0 and UL94-5VB flame class fire rating. Zinc-plated steel backcan |
| Safety Agency | UL1480, UL2043, NFPA90 & NFPA70; S7232/UL Listed, Suitable for use in air handling spaces, Signaling Speaker; Transformer UL registered per UL1876; ROHS, C-tick N108, CE compliant; Baffle meets UL94-V0 and UL94-5VB flammability rating; In accordance with IEC60849/EN60849 systems |
| Dimensions | 196 mm diameter x 138 mm depth from back of baffle (7.7 in diameter x 5.4 in depth) |
| Ceiling Cutout Size | Circular cutout with 170 mm (6.7 in) diameter (cardboard cutout template included) |
| Ceiling Thickness Range | Up to 35 mm (1.4 in) with stock dog-ears. MTC-TCD thickceiling dog-ears available for up to 55 mm (2.2 in) ceiling thicknesses. |
| Safety Seismic Attachment | One point, top surface |
| Net Weight | 1.6 kg (3.5 lbs, one speaker) |
| Shipping Weight | 6.7 kg (14.7 lbs, pair in master carton) |
| Included Accessories | C-ring support backing plate, 2 tile support rails (for 2 ft or 600 mm tile spans; optional MTC-48TR extension available for larger 4 ft or 1200 mm tile spans), cutout template, paint shield, removable locking multi-pin connector, grille
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