ตู้ลำโพง JBL Control 28-1 Background/Foreground Speaker 8″
ตู้ลำโพงติดผนัง JBL Control 25-1 2 ทาง ขนาดดอกลำโพง 8 นิ้ว Woven-Fiberglass LF Drivers, เสียงแหลม 1 นิ้ว PEI diaphragm tweeter, ทนกำลังขับ 120 Watt 8 Ohm, ตอบสนองความถี่ ± 3dB 62 Hz to 16 kHz, ใช้ได้ทั้งภายนอกและภายใน
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฿16,900.00
Description
JBL Control 28-1 High Output Indoor/Outdoor Background/Foreground Speaker 120 W
ตู้ลำโพงติดผนัง JBL Control 25-1 2 ทาง ขนาดดอกลำโพง 8 นิ้ว Woven-Fiberglass LF Drivers, เสียงแหลม 1 นิ้ว PEI diaphragm tweeter, ทนกำลังขับ 120 วัตต์ 8 Ohm, ตอบสนองความถี่ ± 3dB 62 Hz to 16 kHz, ใช้ได้ทั้งภายนอกและภายใน
The Control® 28-1 is a two-way 8” speaker with rich sonic character, wide coverage, consistent coverage, versatile mounting, and a contemporary high-design look that fits into a wide range of decors, This makes Control 28-1 an excellent choice for a wide variety of applications, including retail stores, restaurants, health clubs, theme parks, educational facilities, hospitality, music cafes, leisure venues, and anywhere where a top quality high-output indoor/outdoor foreground/background music (and/or paging) speaker is required.
Features:
- 8″ woofers with woven fiberglass cone
- 1″ PEI diaphragm tweeters with fluid cooling
- Built-in InvisiBall mounting hardware
- Weather-resistant enclosure and transducers
- 100° x 100° coverage
- 240W power handling of programmatic material in direct 8 Ohms setting, plus built-in multi-tap transformers
- Frequency response of 45 Hz to 20 kHz.
Specifications
| Power Rating | 240 W continuous program (2 h) 120 W (480 W peak), continuous pink noise (2 h) 90 W (360 W peak) continuous pink noise (100 h) |
| Nominal Impedance | 8 ohms (THRU setting) |
| Maximum Input Voltage | 27.5 V RMS (2 h), 55.0 V peak |
| Frequency Response ± 3dB | 62 Hz to 16 kHz |
| Frequency Response ±10 dB | 45 Hz to 20 kHz |
| Sensitivity | 91 dB, 1 W / 1 m (average 100 Hz to 10 k Hz) |
| Coverage Angle | 100° x 100° |
| Directivity Factor | 7.3 (averaged 1 kHz to 16 kHz) |
| Directivity Index | 8.3 dB (averaged 1 kHz to 16 kHz) |
| Crossover Type | 2nd order low-pass, 1st order high-pass, plus conjugate shaping |
| Transformer Taps | 70 V: 60 W, 30 W, 15 W, 7.5 W 100 V: 60 W, 30 W, 15 W Insertion loss: < 0.94 dB at any tap setting Thru setting: 8 Ohms nominal |
| Recommended Protective High-Pass | 45 Hz high-pass (24 dB/oct) for 8 Ohms operation plus 15 W and 7.5 W taps; 55 Hz for 30 W tap; 65 Hz for 60 W tap |
| LF Driver Size | 8″ / 200 mm |
| HF Driver Size | 1″ / 25 mm |
| Driver Type | LF Driver: Woven-fiberglass cone with pure butyl rubber surround with Weather-Edge frame protection, high-temp Kapton voice coil former, high-temp voice coil wire, optimized cone geometry, linear suspension spider, and FEA optimized motor structure HF Driver: PEI diaphragm, low-viscosity ferro-magnetic fluid, and Kapton voice coil former |
| Enclosure Material | High-impact polystyrene (HIPS) |
| Grille | Highly zinc-plated, finished in durable TGIC polyester powder-coating |
| Termination | Screw-down terminal strip, zinc-plated copper based, nickel-plated metal screws and washers. Accepts up to 9 mm outside 4 mm inside open lugs (#6, #8, or #10 lug), plus bare wire (up to 12 AWG / 2.5 mm2) |
| Environmental | IP-44 per IEC529; exceeds MilSpec 810 for humidity, salt-spray, temperature & UV; passes MilStd-202F for salt spray and ASTM G85 for acid-air plus salt spray |
| Agency Rating | ROHS-compliant; Transformer UL Recognized per UL1876 |
| Dimensions (H x W x D) | 15.2 x 11.1 x 8.6″ / 386 x 282 x 219 mm |
| Weight | 15 lb / 6.8 kg |
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