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 |
Safety Seismic Attachment |
One point, top surface |
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. |
Optional Accessories |
MTC-24NC new construction bracket ; MTC-24MR mud-ring construction bracket ; MTC-TCD thick-ceiling dog-ears for ceiling thicknesses up to 55 mm (2.2 in, ordering one set = 24 dog-ears for 8 speakers) ; MTC-48TR tile rail for 1200 mm (4 ft) tile spans |
Diameter |
196 mm (7.7 in) |
Depth |
138 mm (5.4 in) |
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 thick-ceiling dog-ears available for up to 55 mm (2.2 in) ceiling thicknesses. |
Net Weight |
1.6 kg (3.5 lbs, one speaker) |
Shipping Weight |
6.7 kg (14.7 lbs, pair in master carton) |