频率范围 (-10dB) | 74 Hz – 20 kHz |
Frequency Response (±3 dB) | 100 Hz – 15 kHz |
额定功率 | 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) |
Rated Noise Voltage | 70V/100V (with 70V/100V tap settings) |
灵敏度 | 87 dB (1kHz - 16 kHz) |
EN54 Sensitivity (@ 4m) | 75 dB (per EN54-24 spectrum and measurement conditions at 4 meters.) |
覆盖角度 | 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 |
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) |
阻抗 | 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 |
变压器抽头 | 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 |
保险丝 | 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 |
尺寸 | 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 |
净重量 | 2.2 kg (4.8 lbs, one speaker) |
运输重量 | 8.2 kg (17.9 lbs, pair in master carton) |
随附配件 | 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 |
输入接口 | Ceramic block with brass inserts |
颜色 | White |
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 |
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