Jbl 2241 h brochure

Page 1

2241H 460 mm (18 in) Low Frequency Transducer SS 2241H CRP 10M 7/03 Typical Response and Impedance Curves, Enclosure Volume and Port Tuning Frequency response contour of the 2241H taken in a hemispherical free-field environment, a closed box of 280 l (10 ft 3) internal volume enclosing the rear of the driver. Measured response of a typical pro- duction unit, including all peaks and dips, does not deviate more than 2 dB from the above curve. The dotted line represents measured 45 degree off-axis response. The dashed curve represents the response when the driver is mounted in a 280 l (10 ft 3) vented enclosure tuned to 30 Hz using a port with an area of 320 cm2(50 in 2) and a length of 20 cm (8 in). The impedance magnitude curve is measured in free-air. Distortion vs. Frequency Distortion levels raised 20 dB, measured at 60 watts, 1 meter. With very high thermal power handling, special atten- tion was paid to increased mechanical integrity. A new cone design which greatly improves cone strength allows for increased reliability and longer life. Greater linear excursion for matched power and displacement levels was achieved via a new surround topology and edge damping treatment. The 100 mm (4 in) voice coil benefits from a new winding technique which offers greater thermal sta- bility with increased power handling. All elements of the cone, voice coil and suspension system have been careful- ly optimized and controlled to ensure smooth high fre- quency response. The 2241H is ideally suited for use in touring and fixed sound applications where high SPL and deep bass response are required. Its low distortion and smooth frequency response make the 2241H suitable for critical monitoring applications as well. THIELE/SMALL PARAMETERS 6: fs:35 HzRe:5.0 ohms Qts:0.40 Qms:5.7 Qes:0.43 Vas:310 l (11.0 ft 3) SD:0.124 m 2(192.4 in 2) Xmax :7.6 mm (0.30 in)VD:942 cm 3(57.7 in 3) Le:1.75 mH
o(Half space) 2:2.9% Pe(Max) 1:600 W continuous pink noise MOUNTING INFORMATION: Overall Diameter: 464 mm (18¼in) Bolt Circle Diameter: 441 mm (17⅜in) Baffle Cutout Diameter Front Mount: 427 mm (16¹³⁄₁₆in) Rear Mount: 428 mm (16⁵⁵⁄₆₄in) Depth 7:191 mm (7½in) Volume Displaced by Driver: 8.51 (0.3 ft 3) Net Weight: 10 kg (22 lb) Shipping Weight: 10.9 kg (24 lb) 6Thiele/Small parameters are measured after a 2 hour exercise period using a 600 W AES power test and will reflect the expected long term parameter values once the driverhas been installed and operated for a short period of time.7Clearance of at least 76 mm (3 in) must be provided behind the magnet assembly and the gap vents to allow sufficient air circulation and proper cooling to take place. JBL Professional 8500 Balboa Boulevard, P.O. Box 2200 Northridge, California 91329 U.S.A. www.jblpro.com ©Copyright 2003 JBL ProfessionalAHarman International Company