This is a rare 3-way network. The cross will be 500/7,000 Hz. It is possible to build a 3-way system with this one unit. Level control is also possible, and it's easy to use. The exterior has dullness and oxidation. Serial 512013/512014 (Tamura Eiji)
Maintenance information: 2023.12.9 operation confirmed
Accessories: instruction manual
Main specifications: cross 500/7,000 Hz -5 to -15 dB W120 x H153 x D175 mm weight 2.2 kg/unit