The diaphragm on one side has a dent and the gain is small, so it's junk. Please use it as a part remover. There is no guarantee for junk items, and they are sold as is. Appearance, dullness, scratches, and a feeling of use can be seen (Kobayashi Hitoshi)
Maintenance information: 2026.5.26 operation confirmation (small gain on one side/dent in the diaphragm)
Accessories: stand, instruction manual
Main specifications: efficiency 95dB 8Ω cutoff frequency 14kHz/16kHz/18kHz cutoff frequency to 100kHz W150 x H100 x D162 mm (3-point support base included) Weight 1.2 kg per bottle (3-point support base included)