2451H​/​J Compression Driver

The Model 2451H/J is a 38 mm (1½ in) exit diameter, compact size and light weight addition to JBL’s family of professional quality neodymium compression drivers. The 38 mm exit allows the Coherent Wave phasing plug to directly couple with Optimized Aperture Bi-Radial horns to provide lower distortion and better coverage control to 20 kHz than previous designs.
The Coherent Wave phasing plug structure has four equal length passages to provide in-phase summation of diaphragm output at the 38 ...