※The frame is cheap because paint, magic, etc. are not in good condition. It is a 20cm cone type full-range speaker unit representing Altec, a ferrite model. The responsiveness and light sound are truly amazing. The exterior has magic marks and paint stains. Serial 018385/018404 (Yonejima Satoshi)
Maintenance information: 2023.7.29 Good sweep test
Accessories: There are no accessories
Main specifications: 20 cm cone type full range speaker frequency characteristics 70 Hz to 11 kHz minimum resonance frequency 80 Hz impedance 8 ohms rated input 12 W output sound pressure level 102 dB/W/m weight 1.4 kg