The TOA PM-660 is a desktop paging microphone with a cardioid dynamic capsule, push-to-talk bar with lock lever and a 2.5m cable on a 6.35 mm jack plug. Its output is 600 ohm unbalanced, so it plugs into the phone jack mic input on most PA mixer amplifiers. It is used for simple announcement points in shops, offices, schools and reception desks.
Cardioid
Dynamic
600 Ω
Unbalanced
6.35 mm
Jack plug
2.5 m
Cable
No remote switch contactUnlike the PM-660D and PM-660U, this version has no extra switch contact, so it cannot trigger amplifier priority or a chime on its own. Choose the PM-660D (DIN) or PM-660U (bare end) for that.
Features
Cardioid dynamic capsule with low handling noise
Push-to-talk switch with lock lever
600 ohm unbalanced output
2.5m single-core shielded cable on 6.35 mm (1/4 inch) jack plug
Specifications
| Type | Desktop dynamic (moving coil) |
| Polar pattern | Cardioid |
| Output impedance | 600 Ω, unbalanced |
| Sensitivity | -58 dB (1 kHz, 0 dB = 1V/Pa) |
| Frequency response | 100 Hz to 10 kHz |
| Cable | Single-core shielded, 2.5m |
| Termination | 6.35 mm (1/4 inch) unbalanced jack plug |
| Talk switch | Push to talk with lock lever |
| Finish | Grey: steel wire head, ABS body |
| Dimensions (W x H x D) | 100 x 215 x 150 mm |
| Weight | 440 g |





