The JBL 4309 Studio Monitor was designed and engineered at JBL’s renowned Acoustic Technology Research and Development Center in Northridge, California, USA. This speaker model incorporates a comprehensive suite of JBL’s patented acoustic technologies.
The speaker is a 2-way system featuring patented High-Definition Imaging (HDI™) Horn technology, which ensures precise sound dispersion and excellent soundstage depth. It is complemented by the 2410H-2 1-inch (25 mm) compression driver and a 6.5-inch (165 mm) Pure Pulp Cone woofer with a cast aluminum frame that provides rigidity, delivering powerful sound reproduction with excellent dynamics and precise, lifelike audio detail