Loa JBL Control 28-1

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Components:
• 8” woofer with woven fiberglass cone
• 1” PEI diaphragm tweeter with fluid cooling
Contemporary, high-design appearance
Built-in InvisiBall® mounting hardware*, plus available U-bracket
Weather resistant enclosure and transducers
Wide 100° x 100° coverage
120 Watt power handling (240 Watt program) in direct 8Ω setting, plus built-in 60 Watt 70V/100V multi-tap transformer.
High fidelity sound character with broad frequency response of 45 Hz – 20 kHz.

JBL	CONTROL CONTRACTOR	CONTROL 28-1	8″ 2-WAY SURFACE-Mount Speaker, BLK	China
JBL	CONTROL CONTRACTOR	CONTROL 28-1-WH	8″ 2-WAY SURFACE-Mount Speaker, WH	China

Mã: Control 28-1 Danh mục: Control Contractor 20 Series, Loa JBL Brand: JBL

Mô tả

Loa JBL Control 28-1 là một mẫu loa JBL nghe nhạc nhỏ gọn, có thiết kế hiện đại và sang trọng. Loa Control 28-1 sử dụng cấu trúc hai chiều với driver 8 inch, cho âm thanh phong phú và vùng phủ sóng rộng rãi. Sản phẩm phù hợp cho nhiều không gian nhỏ và dễ dàng lắp đặt.

Thông số kỹ thuật JBL Control 28-1

Frequency Range (-10dB)	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 (1m)	112 dB ave. Continuous Pink Noise (118 dB peak)
Sensitivity	91 dB, 1W/1m (ave. 100 Hz – 10 kHz)
Coverage Angle	100°H x 100°V
Directivity Factor (Q)	7.3 (averaged 1kHz – 16kHz)
Directivity Index (DI)	8.3dB (averaged 1kHz – 16kHz)
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 ProtectiveHigh-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.
Drivers	LF: 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. HF: 25 mm (1 in) PEI diaphragm, low-viscosity ferro-magnetic fluid, and lightweight Kapton™ voice coil former.
Enclosure	High Impact Polystyrene (HIPS) with 10% glass fill, painted with highly-UV resistant paint on white (-WH) version for maximum UV fade resistance.
Grille	Highly zinc-plated, finished in durable TGIC polyester powdercoating. MTC-28WMG-1 (&-WH) available with WeatherMax™ multi-layer foam and tight-weave mesh vapor barrier backing.
Mounting Hardware	InvisiBall wall-mounting system included. Two 6 mm attachment points (on top and bottom) for optional MTC-28WMG-1 (&-WH) U-bracket. Secondary safety attachment loop point on back panel.
Outdoor Capability	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 MTC-28WMG-1 WeatherMax™ grille for breaking up driving rain and for especially difficult environments.
Input Connectors	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.
Safety Agency	ROHS-compliant; Transformer UL Recognized per UL1876
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); 277 mm (10.9 in) deep total when mounted on InvisiBall wall-mount bracket.
Net Weight (each)	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)