JBL's exponential horn. Since it is a longhorn, it can be used at low crossover frequencies. Together with an acoustic lens, it is possible to create a monitor sound with high directivity. The exterior has bald paint, dirt, etc. Serial 20444/20547 (Tamura Eiji)
Accessories: none
Main specifications: crossover frequency 800 Hz sound pressure level 108 dB (using 2308 lenses) throat diameter 2.5 cm diameter 156 x D 293 mm weight 1 kg/book