This is a round straight horn with a goto unit. Detening processing has been applied. On the exterior, dirt and dust are conspicuous (Yonejima Satoshi)
Accessories: no accessories
Main specifications: round straight horn for middle and bass, total length 600mm, opening caliber, 400mm, cutoff frequency, 300 Hz, optimal crossover, 400-500 Hz, material, aluminum aperture, weight approx. 7 kg