Altec 1.5" ferrite driver. A clear and powerful American sound. The wide-area characteristics unique to Altech resonate comfortably while being rounded and stretched quickly. Both diaphragms have a logo. The exterior is scratched, dull, and has a feeling of use. Serial 31200107 (Yonejima Satoshi)
Maintenance information: 2025.12.18 sweep check is good
Accessories: No accessories
Main specifications: 1.5 inch coaxial unit, 8 ohms, playback frequency band, 500 to 15,000 Hz, maximum input, 100 W, 13.8 kg