This is a 20 cm cone type full-range speaker unit representing Altec, a ferrite model. It feels good to have a good response and a light sound. There are paint peeling in some places on the exterior (Tetsuji Oikawa)
Maintenance information: 2022.1.10 operation confirmed
Accessories: none
Main specifications: 20cm cone type full-range speaker Frequency characteristics 70Hz~11kHz Lowest resonance frequency 80Hz Impedance 8Ω Rated input 12W Output sound pressure level 102dB/W/m Weight 1.4kg