It is a 2-way crossover network manufactured for PIONEER's low frequency crossover. There are appearance, dullness, and abrasions (Kobayashi Hitoshi)
Maintenance Information: 2022.11.8 Operation confirmed
Accessories: none
Main specifications: impedance 8Ω crossover 500Hz/800Hz maximum input 100W dimensions W260 x H65 x D151 mm weight 1.9 kg