JBL D208 (1956–?)

The JBL D208 is a vintage 8-inch full-range loudspeaker introduced in 1956. The design is simple. It has a single 8″ cone driver, no crossover network, no tweeter and no woofer. One driver does everything. According to at least one seller, it suits both guitar and hi-fi use.

The specs that survive agree across the few sources that document the model. The D208 is rated for 50 watts, has an 8-ohm impedance, and covers 35 Hz to 16 kHz. One source lists sensitivity at 98 dB (1W/1m), which would make it an efficient speaker. That figure comes from a single listing and hasn't been corroborated elsewhere. Dimensions are given as 465 × 300 × 250 mm, weighing 11 kg.

JBL's period advertising in High Fidelity (September 1958, p.59) promoted its "Signature Extended Range" loudspeakers for their precision reproduction. The D208 fits that category. It is a no-frills, single-driver design aimed at clean, efficient sound rather than multi-way complexity.

Beyond that, the record is thin. No original launch price, no production end date, no cabinet construction details and no professional reviews have surfaced. What's known comes largely from the spec sheets and the 1956 introduction date.