61A
| Brand | Altec, Altec Lansing |
| Manufacturer | Altec Lansing Corporation, LTV Ling Altec, Inc., Ling-Temco-Vought, Inc |
| Function | EQ |
| Produced | 1965 |
| Country | United States |
| Signal Path | Analog Hardware |
| Dimensions | 3.8 × 8.9 × 14 cm (W × H × D) |
| Input Level (Minimum) | -70dBm |
| Input Level (Maximum) | +20dBm |
| Input Impedance | 600Ω |
| Output Impedance | 600Ω |
| Insertion Loss | 14dB |