Bafles Ambientales de 8″ JBL Control 28-1

$ 2,000,000.00

En stock


El Control® 28-1 es un altavoz bidireccional de 8 «con un rico carácter sonoro, amplia cobertura, cobertura constante, montaje versátil y un aspecto contemporáneo de alto diseño que se adapta a una amplia gama de decoraciones. Esto hace que el Control 28-1 una excelente opción para una amplia variedad de aplicaciones, que incluyen tiendas minoristas, restaurantes, clubes de salud, parques temáticos, instalaciones educativas, hospitalidad, cafés de música, lugares de ocio y en cualquier lugar donde se escuche música de fondo / fondo interior / exterior de alta calidad ( y / o paginación) se requiere altavoz.

SKU: 39 Categoría:

Product Description

Frequency Range (-10 dB)1
45 Hz – 20 kHz
Frequency Response (±3 dB
62 Hz – 16 kHz
Power Rating2 
240W Continuous Program (2 hrs) 120W (480W peak), Continuous Pink Noise (2 hrs) 90W (360W peak) Continuous Pink Noise (100 hrs)
Maximum Input Voltage
27.5 V RMS (2 hrs), 55.0 V peak
Maximum SPL3
112 dB ave. Continuous Pink Noise (118 dB peak)
91 dB, 1W/1m (ave. 100 Hz – 10 kHz)
Coverage Angle5
100° x 100°
Directivity Factor (Q
7.3 (averaged 1kHz – 16kHz)
Directivity Index (DI)
8.3dB (averaged 1kHz – 16kHz)
Nominal Impedance
8 ohms (THRU setting)
Crossover Type
2nd order low-pass, 1st order high-pass, plus conjugate shaping
Transformer Taps
70V: 60W, 30W, 15W, 7.5W 100V: 60W, 30W, 15W Insertion Loss: <0.94 dB at any tap setting Thru Setting: 8Ω nominal
Recommended Protective High-Pass6
45 Hz high-pass (24 dB/oct) for 8Ω operation plus 15W and 7.5W taps; 55 Hz for 30W tap; 65 Hz for 60W tap
Low Frequency
200 mm (8 in), woven-fiberglass cone with pure butyl rubber surround with Weather-Edge frame protection, high-temp fiberglass voice coil former, high-temp voice coil wire, optimized cone geometry, linear suspension spider, and FEA optimized motor structure
High Frequency
25 mm (1 in) PEI diaphragm, low-viscosity ferromagnetic fluid, and lightweight Kapton™ voice coil forme
Enclosure Material
High Impact Polystyrene (HIPS) with 10% glass fill, painted with highly-UV resistant paint on white (-WH) version for maximum UV fade resistance
Highly zinc-plated, finished in durable TGIC polyester powder coating. MTC-28WMG-1 (&-WH) available with Weather-Max™ multi-layer foam and tight-weave mesh vapor barrier backing.
InvisiBall wall-mounting system included. Two 6 mm attachment points (on top and bottom) for optional MTC-28UB-1 (&-WH) U-bracket. Secondary safety attachment loop point on back panel.
IP-44 per IEC529 (IP-55 when installed with the optional MTC-28WMG-1 WeatherMax™ grille and either MTC-PC2 or MTC-PC3 panel cover.) Exceeds MilSpec 810 for humidity, salt-spray, temperature & UV. Passes MilStd-202F for salt spray and ASTM G85 for acid-air plus salt spray. Optional MTC28WMG-1 WeatherMax™ grille for breaking up driving rain and for especially difficult environments.
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). Optional MTC-PC2 and MTC-PC3 protective panel covers available to provide sealed entrance for additional weather protection.
Agency Rating
ROHS-compliant; Transformer UL Recognized per UL1876
Black (RAL9004) or white (-WH, RAL9016)
Dimensions (H x W x D)7
386 x 282 x 219 mm (15.2 x 11.1 x 8.6 in); 277 mm (10.9 in) deep total when mounted on InvisiBall wall-mount bracket
Net Weight
6.8 kg (15.0 lbs)
Shipping Weight
15.4 kg (34 lbs) pair-packed (for 2 speakers)
Included Accessories
»InvisiBall™ wall-mounting system), 6 mm x 180 mm hex key
Optional Accessories 
»MTC-28UB-1 – Yolk-type U-bracket (&-WH) »MTC-28WMG-1 – WeatherMax grille with backing (&-WH) »MTC-28/25CM – Ceiling-Mount InvisiBall adapter (&-WH)
In half-space (on-wall, 2pi)
At 8Ω setting. Continuous Pink Noise rating is IEC-shaped pink noise with a 6 dB crest factor. Continuous Program Power is defined as 3 dB above the Continuous Pink Noise Rating and is a conservative expression of the system’s ability to handle normal speech and music program material.
Calculated from sensitivity and power handling, exclusive of power compression, at THRU setting
Half-space (on-wall) averaged 100 Hz – 10 kHz, 2.83V
Coverage angle (-6 dB) average between 600 Hz and 12 kHz
 For protection against driving below resonant frequency and to keep transformer out of saturation
In vertical orientation


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