Monitor 400
| Brand | Kirksaeter |
| Function | Speaker |
| Produced | 1978 |
| Country | West Germany |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 48 × 68 × 35 cm (W × H × D) |
| Weight | 27kg |
| Frequency Response | 16Hz-25kHz |
| Treble | 25mm Dome (x4) |
| Midrange | 38mm Dome (x4) |
| Bass | 200mm Paper Cone (x4) |
| Impedance (Nominal) | 8Ω |
| Impedance (Minimum) | 4Ω |
| Crossover Frequencies | 650Hz, 4.5kHz |
| Recommended Amplifier Power | 30-400W |
| Power Handling (RMS) | 250W |
| Power Handling (Peak) | 400W |
| Enclosure Type | Sealed |
| Enclosure Volume | 115l |
| MSRP (1978) | DM 1.980 |