Genuine Harman International Industries through authorized distribution — TAA country-of-origin verified and NDAA §889 screened before checkout.
SKU
4642A-GS
Category
Component Speakers
Overview
Description:
The JBL 4642A is a high quality subwoofer system, featuring a technologically advanced 460 mm (18 in) low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies. The 4642A is ideal for low frequency augmentation of either analog or digital soundtracks in motion picture theaters and for general sound reinforcement applications. The 2241H transducer utilizes the patented Vented Gap Cooling (VGC) process, which pumps air through the magnetic gap and directly over and around the voice coil, providing immediate heat transfer and a reduction in operating temperature. This increases power handling while reducing power compression. Through the use of computer-aided magnet optimization and analysis techniques, JBL engineers were able to optimize magnet weight, flux density and field saturation, resulting in a 2.6 kg (6.5 lb) reduction in overall driver weight and a significant reduction in harmonic distortion. This magnet structure offers much of the weight advantage of rare earth magnet structures without the prohibitive cost, enabling the system to carry a 600-watt continuous AES pink noise power rating.
About Harman International Industries
JBL Professional: Legendary Audio for Over 70 Years
At JBL, audio technology is at the core of everything we do. For 70 years we have employed the best methodology and tools. As established at the very beginning by our founder, James B. Lansing, we develop everything from the ground up. This not only ensures success in the marketplace, but it also guarantees our efforts exceed the needs and expectations of audio professionals throughout the world. Never straying from this exacting formula, our journey has produced a prolific list of audio achievements, groundbreaking technologies, revolutionary advances in the art and science of professional audio, many patents, and many awards. It’s a journey that is legendary worldwide and has positioned JBL as the world leader in professional audio.
Highlights
950 W (60 Vrms) AES 100-hour rating; 1200 W (69 Vrms) AES 2-hour rating
Usable response to 22 Hz (-10 dB) with no EQ; flat to 22 Hz (-3 dB) with external EQ
2241H VGC (Vented Gap Cooled) drivers provide long peak-to-peak excursion, high
sensitivity and high maximum SPL capability
SFG (Symmetrical Field Geometry) magnet structure for low 2nd and 3rd harmonic
distortion
Approved by Lucasfilm, Ltd. for THX® installations
