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Beskrivning
This is a passive two-way loudspeaker built around an 8 in woofer with a woven-fiberglass cone and a 1 in PEI-diaphragm tweeter with ferrofluid cooling. It covers 45 Hz to 20 kHz (-10 dB) and is intended for music and paging where higher output is needed, indoors or outdoors.
The cabinet is glass-filled high-impact polystyrene, available in black or white, with a weather-resistant enclosure and transducers. Rated IP-44, it reaches IP-55 when fitted with the optional WeatherMax grille and a panel cover. Coverage is a wide 100° x 100° pattern. Power handling is 120 W continuous pink noise (240 W program) in direct 8 Ω mode, and a built-in 60 W multi-tap transformer allows 70V and 100V distributed-line use.
Connection is through a screw-down terminal strip that accepts bare wire up to 12 AWG or open lugs. The InvisiBall wall-mount system is included, and optional accessories cover a yoke-type U-bracket, a ceiling-mount adapter and a WeatherMax grille.
Specifikationer
- Märke
- JBL
- Modell
- Control 28-1
- Kategori
- Live-ljud › Övrig live-utrustning
Audio
- Frequency range (-10 dB)
- 45 Hz to 20 kHz
- Frequency response (±3 dB)
- 62 Hz - 16 kHz
- Sensitivity
- 91 dB, 1W/1m (ave. 100 Hz – 10 kHz)
- Maximum SPL (1 m)
- 112 dB ave. continuous pink noise (118 dB peak)
- Coverage angle
- 100°H x 100°V
- Directivity factor (Q)
- 7.3 (averaged 1 kHz – 16 kHz)
- Directivity index (DI)
- 8.3 dB (averaged 1 kHz – 16 kHz)
- Crossover type
- 2nd order low-pass, 1st order high-pass, plus conjugate shaping
- Drivers
- LF: 200 mm (8 in) woven-fiberglass cone; HF: 25 mm (1 in) PEI diaphragm
Power
- Power rating
- 240 W continuous program (2 hrs); 120 W (480 W peak) continuous pink noise (2 hrs); 90 W (360 W peak) continuous pink noise (100 hrs)
- Maximum input voltage
- 27.5 V RMS (2 hrs), 55.0 V peak
- Impedance
- 8 ohms (THRU setting)
- Transformer taps (70V)
- 60 W, 30 W, 15 W, 7.5 W
- Transformer taps (100V)
- 60 W, 30 W, 15 W
- Recommended protective high-pass
- 45 Hz (24 dB/oct) for 8 Ω and 15 W/7.5 W taps; 55 Hz for 30 W tap; 65 Hz for 60 W tap
Connectivity
- Input connectors
- Screw-down terminal strip; open lugs up to 9 mm OD / 4 mm ID, or bare wire up to 12 AWG / 2.5 mm²
Physical
- Enclosure
- High impact polystyrene (HIPS), 10% glass fill
- Grille
- Zinc-plated, TGIC polyester powder-coated
- Colors
- Black (RAL9004) or white (-WH, RAL9016)
- Dimensions (H x W x D)
- 386 x 282 x 219 mm (15.2 x 11.1 x 8.6 in)
- Depth on InvisiBall bracket
- 277 mm (10.9 in)
- Net weight (each)
- 6.8 kg (15.0 lbs)
- Shipping weight
- 15.4 kg (34 lbs) pair-packed (for 2 speakers)
- Outdoor rating
- IP-44 per IEC529; IP-55 with MTC-28WMG-1 grille and MTC-PC2/PC3 panel cover
- Mounting
- InvisiBall wall mount; two 6 mm attachment points for optional U-bracket; rear safety loop
Compliance
- Safety agency
- RoHS-compliant; transformer UL Recognized per UL1876
In the box
- Included accessories
- InvisiBall wall-mounting system, 6 mm x 180 mm hex key
- Optional accessories
- MTC-28UB-1 U-bracket, MTC-28WMG-1 WeatherMax grille, MTC-28/25CM ceiling-mount adapter
Frågor
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