670
| Brand | Altec, Altec Lansing |
| Manufacturer | Altec Lansing Corporation |
| Function | Microphone |
| Country | United States |
| Model ID | 670A |
| Form Factor | Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 6.4 × 194.3 × 8.6 cm (W × H × D) |
| Weight | 1.25lbs |
| Frequency Response | 35Hz-15kHz |
| Element Type | Ribbon |
| Directivity Patterns | 3 |
| Directivity Pattern | Cardioid, Dipole, Omnidirectional |
| Discrimination (Cardioid, Front-to-Back) | 18dB |
| Output Impedance | 30/50Ω, 150/250Ω |
| Output Level | -58dBm/10dynes/cm² |
| Finish | Instrument Gray |