TM-18
| Brand | Monarch |
| Manufacturer | Monarch Electronics International, Inc. |
| Function | Microphone |
| Produced | 1964 |
| Country | United States |
| Form Factor | Stand Mounted |
| Signal Path | Passive Hardware |
| Weight | 2lbs (Shipped) |
| Frequency Response | 40Hz-15kHz |
| Type | Dynamic |
| Output (1kHz) | -52dB |
| Impedance (High) | 50kΩ |
| Impedance (Low) | 600Ω |
| Distributor Price (1964) | $11.80 |