Product Overview
The white pair of 2-way, 8" JBL Professional Control 28-1-WHT are designed for background or foreground applications. Featuring weather-protected circuitry, the Control 28-1L can be used indoors or outdoors and are well suited for retail stores, restaurants, health clubs, theme parks, educational facilities, hospitality, music cafes, leisure venues, and anywhere where high-quality, high-output indoor/outdoor foreground/background music (and/or paging) speakers are required. The speakers feature JBL's proprietary InvisiBall mounting hardware, which allows for installation through a hidden access point behind its logo badge.
The Control 28-1L require 120W (240W program) at 8 Ohms to power the 8" woven fiberglass woofer and 1" PEI diaphragm tweeter, which combine for a frequency response of 62 Hz to 16 kHz and a max SPL of 118 dB peak. Connections to the speaker are screw-down terminal strips with a zinc-plated copper and nickel-plated metal screws and washers. The JBL Control 28-1L includes the InvisiBall wall-mounting system and a hex key.
- 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
- 120W power handling (240W program)
- Frequency response of 62 Hz to 16 kHz
General Specifications
Frequency Range (-10 dB) 45 Hz to 20 kHz
Frequency Response (+/-3 dB) 62Hz - 16 kHz
Power Rating 240 W Continuous Program (2 hrs) ; 120 W (480W peak), Continuous Pink Noise (2 hrs) ; 90 W (360W peak) Continuous Pink Noise (100 hrs)
Maximum Input Voltage 27.5 V RMS (2 hrs), 55.0 V peak
Maximum SPL 112 dB ave. Continuous Pink Noise (118 dB peak)
Sensitivity 91 dB, 1W/1m (ave. 100 Hz – 10 kHz)
Coverage Angle 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-Pass 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 Transducer 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 Transducer 25 mm (1 in) PEI diaphragm, low-viscosity ferro-magnetic fluid, and lightweight Kapton™ voice coil former
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)
