612C (Rev. 2)
| Brand | Altec, Altec Lansing |
| Manufacturer | Electori Co. Ltd. |
| Function | Speaker |
| Produced | 1982-1983 |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 65 × 75 × 51 cm (W × H × D) |
| Weight | 49.5kg |
| Frequency Response | 20Hz-20kHz |
| Driver | 15" Coaxial Horn/Paper Cone (Altec 604-8KS) |
| Sensitivity (New JIS) | 100dB |
| Impedance (Nominal) | 8Ω |
| Crossover Frequency | 1.5kHz |
| Power Handling (Nominal) | 65W |
| Enclosure Type | Bass Reflex (Altec 612C) |
| MSRP (1982) | ¥420,000 |
| Notes | Driver updated |