| 频率范围 (-10dB) | 68 Hz – 17 kHz |
| Frequency Response (±3 dB) | 95 Hz – 15 kHz |
| 功率容量 (@ low-Z) | IEC System Long-Term Ratings (low-Z direct): 40 Watts Continuous Program Power 20 Watts Continuous Pink Noise (80W peak), 100 hr |
| Rated Noise Power | 15W (15W tap) |
| Rated Noise Voltage | 70V/100V (with 70V/100V tap settings) |
灵敏度 | 84 dB (1kHz - 16 kHz) |
| EN54 Sensitivity (@ 4m) | 72 dB (per EN54-24 spectrum and measurement conditions at 4 meters.) |
| 覆盖角度 | 130° conical coverage (1 kHz - 16 kHz) |
| Coverage Angels(by Frequency)Conical (Vertical & Horizontal) | 500 Hz: 180°1000 Hz: 175°2000 Hz: 170°4000 Hz: 160° |
| 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) | 9.8 |
| Directivity Index (DI) | 7.4 dB |
| Maximum SPL (1m) | 97 dB (low-impedance, 103 dB peak) 94 dB (top 70V/100 tap) EN54: 84 dB (4m, top 70/100V tap) |
| 阻抗 | 8 ohms (in direct/bypass setting) |
| 变压器抽头 | 15W, 7.5W, 3.8W @ 70V or 100V (plus 1.9W @ 70V only) |
| 保险丝 | Thermal Fuse, open temperature 152 degrees C, Rating >= 10A @ 250VAC |
| Drivers | 76 mm (3 inch) with polypropylene cone, butyl rubber surround, anodized aluminum voice coil former, high temperature voice coil |
| 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（高 x 宽 x 厚） | 196 mm diameter x 174 mm from back of baffle to back of gland nut (7.7 in diameter x 6.9 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 (1.4 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 |
| 净重量 | 1.6 kg (3.5 lbs, one speaker) |
运输重量 | 6.7 kg (14.7 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-12WG 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 |
2021-10
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2021-10
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