JBL Professional Control HST Wide-Coverage Speaker with 5.25-Inch LF, Dual Tweeters and HST Technology, White

The patent-pending design includes a wall-facing woofer two horizontally splayed tweeters a wall bracket that spaces the speaker the required distance from the wall and a tapered cabinet that provides proper loading and dispersion of the sound With most on-wall (surface-mount) speakers the baffle of the speaker is some distance from the wall It is the nature of low and low-mid frequency sound waves to wrap around the speaker where they reflect back out from the wall recombining with the original sound When this occurs some frequencies add coherently to the original sound and other frequencies cancel causing peaks and dips in the resulting frequency response and inconsistencies from location to location within the listening space By substantially reducing this occurrence Control HST is able to provide a flatter resulting frequency response along with a more consistent sound character throughout the room

The dual tweeters feature aluminum diaphragms with a CMMD treat polyurethane surround a neodymium magnet and fluid-cooling for high output low distortion and humidity resistance
The well-damped woofer incorporates a comma ceramic metal matrix diaphragm for a very high stiffness-to weight ratio high output resistance to humidity and long-term durability
Engineered noise cancelling allows control HST to provide a flatter resulting frequency response along with a more consistent sound character throughout the room
100 W (400 W peak) 2 hours / 75 W (300 W peak) 100 hours
70V 60W 30W 15W 7 5W/ 100V 60W 30W 15W