44-BX (Rev. D)
| Brand | RCA |
| Manufacturer | RCA Victor |
| Series | Type 44 Microphone |
| Designer | Harry F. Olson |
| Function | Microphone |
| Produced | ~1948 |
| Country | United States |
| Model ID | MI-4027-D |
| Form Factor | ½" Standard Mount |
| Signal Path | Analog Hardware |
| Dimensions | 12.1 × 30.5 × 8.6 cm (W × H × D) |
| Weight | 8.5lbs |
| Frequency Response | 30Hz-15kHz |
| Element | Ribbon (Transformer Coupled) |
| Pattern | Figure-8 |
| Output Impedance | 50Ω, 250Ω (Selectable) |
| Sensitivity (10 dynes/cm², Reference Level: 1mW, Matched Load) | -55dBm |
| Hum Pickup Level (Reference Level: 1x10⁻³ gauss) | -112dBm |
| Finish | Satin Chromium, Umber Gray |
| Connections |
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