JBL professional tweeters. Since it is designed to make the sound fly far, the sound quality is solid and more straight compared to the company's consumer model 077. The mid to high frequencies are vivid, and the low frequencies are finished with a tight sound. There are slightly wrinkled paint creases on the frame (Murakoshi Yoichi)
Maintenance information: 2025.11.6 sound output confirmed
Accessories: none
Main specifications: horn type tweeter impedance 16 ohms playback frequency band 6,500 to 21,500 Hz (manufacturer specified), crossover 7 kHz, efficiency 105 dB, W100 x D84 mm, 3 kg/book