8” Polycellulose bass/mid drivers

The larger bass drivers in the JBL Stage 280F speakers can move lots of air. As a result, the bass is powerful and clear with an extension down to 33 Hz. The cones are made of Polycellulose. This has the best properties of paper pulp cones and polypropylene. As a result, they are more rigid and less susceptible to moisture. They also exhibit lower distortion. Notably, polypropylene cones can be vacuum-formed.

1” Aluminium tweeter and next-gen waveguide

The 1” tweeter in the JBL Stage 280F speakers sits in a waveguide. The waveguide helps to disperse high frequencies in the listening area. Moreover, the cone is made of anodized aluminium. This is designed to boost the ultra-high frequencies up to 25kHz.

JBL are experts at voicing speakers to optimize the drivers used. Lastly, the tweeter sits at the top of the cabinet to bring it closer to the recommended position at ear level.

A quality anti-resonant cabinet

Larger speakers such as the JBL Stage 280F speakers need to have a solid and rigid cabinet to avoid vibration and resonances. The cabinet is made of audio-grade MDF that has good audio characteristics.

Internal bracing provides solid support for the drivers. Moreover, the two rear-firing bass ports feature flared racetrack configuration that prevents honking and eases the airflow. Lastly, the speakers are mounted on plinths that isolate the speakers from the floor.