JBL 2343

The JBL 2343 is a radial horn with a diffraction lens. It is a high-frequency component, not a complete loudspeaker. It belongs to JBL's 2340 series of horns, along with the 2342 and 2344. The 2343 was designed to accept drivers with a 1-inch throat opening, using either 2-bolt or 3-bolt mounting patterns, and it was sold without a driver. The slot lens drew comparison to the multicell lens construction Altec used. The horn itself is described as having a constant-beamwidth characteristic with a bi-radial lens.

Documented specs are thin but consistent across sources. The horn's frequency range is listed as 2500 Hz to 16 kHz, with horizontal dispersion of 100° and vertical dispersion of 60°. Those dispersion figures may refer to the series rather than this model specifically. In at least one documented system, the French catalog listing for JBL's "Scan" system pairs the 2343 with a 2405 tweeter and a 12-inch woofer, with the horn handling mid/high-frequency duty.

Not much else is documented. No production years, original price, weight, or dimensions turn up in the research available. The 2343 has found a following among DIY speaker builders, who have used it to build large-format three-way systems. One used-market listing captured a price of $350 for the horn with lens. Forum users have described its midrange as clear and articulate, and one anecdotal claim says it outperformed newer constant-directivity horns for certain applications. That is enthusiast opinion, not a documented review. No negative press or common failure modes appear in the record.

Known specs: