SVS - Prime Elevation, the most popular SVS speaker, provides a direct radiating approach to Dolby Atmos height effects for the most immersive and impactful audio experience possible with neutrality to blend
QSC KS118 Direct Radiating 18-inch Subwoofer
Martin Audio SX118 18" Passive Direct Radiating Subwoofer
18 Sound 12MB1000 12-inch Midbass Driver Woofer High Output MB Ferrite Transducer 8 ohms Ideal for Direct Radiating or Horn Loaded Mid Bass Systems : Amazon.ca: Musical Instruments, Stage & Studio
Horn loaded dome tweeter versus direct radiating | Audio Science Review (ASR) Forum
Goldenear Invisa MPX Multipolar In-Ceiling/In-Wall Speakers - AV World - Auckland HiFi Store