※There is no problem with operation, but since it is cheap, it is currently sold. 17cm full range unit from Siemens. The sensitivity is good in the mid to high range, and it falls out quickly. Wind instruments such as saxophones seem to make a tasteful sound. There are traces of solder in the terminal (Oikawa Tetsuji)
Maintenance Information: 2023.8.6 Operation confirmed
Main specifications: impedance 8 ohms, outer diameter, 182 mm, height 73 mm, 1.2 kg