| Frequency Range (-10 dB) |
74 Hz – 20 kHz
|
| Frequency Response (±3 dB) |
100 Hz – 15 kHz
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| Power Rating |
IEC System Long-Term Ratings (low-Z direct):
60 Watts Continuous Program Power
30 Watts Continuous Pink Noise, (120W peak)
|
| Rated Noise Power |
25W (25W tap)
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| Rated Noise Voltage |
70V/100V (with 70V/100V tap settings)
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| Sensitivity (1W, 1m) |
87 dB (1kHz - 16 kHz)
|
| EN54 Sensitivity (@ 4m) |
75 dB (per EN54-24 spectrum and measurement conditions at 4 meters.)
|
| Coverage Angle |
120° conical (1 kHz - 16 kHz)
|
| Coverage Angles(by Frequency) Conical (Vertical & Horizontal) |
500 Hz: 175°1000 Hz: 170°2000 Hz: 150°4000 Hz: 89°
|
| Reference Axis |
Specification and measurement reference is directly on-axis vertically and horizontally, directly below the speaker as speaker it is installed in the horizontal ceiling plane
|
| Directivity Factor (Q) |
7.6
|
| Directivity Index (DI) |
8.1 dB
|
| Rated Maximum SPL (1m) |
102 dB (low-impedance, 108 dB peak)
101 dB (top 70V/100 tap)
EN54: 87 dB (4m, top 70/100V tap)
|
| EN54 Max SPL (@ 4m) |
87 dB (per EN54-24 spectrum and measurement 25W tap, at 4 meters)
|
| Impedance |
8 ohms (in direct/bypass 8 ohm setting); EN54 nominal impedance 7 ohms (based on min Z of 5.7 ohms at 11.2 kHz)3.2W@70V; 6.3W@100V Tap: 1600Ω 6.3W@70V; 12.5W@100V Tap: 800Ω 12.5W@70V; 25W@100V Tap: 400Ω 25W@70V; N/C@100V Tap: 200Ω
|
| Transformer Taps |
25W, 12.5W, 6.3W @ 70V or 100V (plus 3.2W @ 70V only)
|
| Crossover Network |
12 dB/oct (2nd order) low-pass to LF driver, 12 dB/oct (2nd order) high-pass to HF driver
|
| Fuse |
Thermal Fuse, open temperature 152 degrees C, Rating >= 10A @ 250VAC
|
| Drivers |
LF Driver: 100 mm (4 in)
HF Driver: 19 mm (3/4 in
|
| Connections |
Input +, Input -, Earth (connected to backcan). Ceramic block with brass inserts (3.2 mm/0.126 in opening), accommodates 2.5 sq mm / 12 AWG wire.
|
| Gland Nut/Strain Relief |
Accommodates round jacketed cables 4.0 mm (0.16 in) through 9.0 mm (0.36 in)
|
| Materials |
ABS baffle with UL94-V0 and UL94-5VB flame class fire rating; Zinc-plated steel backcan
|
| Safety Agency |
EN54-24:2008 certified Type A (Certificate No. 0359-CPR-00485); Compliant with BS5839/8; UL1480, UL2043, NFPA90 & NFPA70; Suitable for use in air handling spaces, Signaling Speaker; rated IP-21 per IEC529/60529; 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 217 mm from back of baffle to back of gland nut (7.7 in diameter x 8.6 in 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 (1.3 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 |
2.2 kg (4.8 lbs, one speaker)
|
| Shipping Weight |
8.2 kg (17.9 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, grille
|
| Optional Accessories |
MTC-14WG high humidity grille 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 dogears for 8 speakers) MTC-48TR tile rail for 1200 mm (4 ft) tile spans
|
| Input Connectors |
Ceramic block with brass inserts
|
| Color |
White
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| Backcan |
formed steel (included "blind-mount")
|
| Baffle/Rim |
ABS baffle with UL94-V0 and UL94-5VB flame class fire rating.
|
| Plenum Usage |
Yes, backcan included
|