Monitor 150
| Brand | Kirksaeter |
| Function | Speaker |
| Produced | 1978 |
| Country | West Germany |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 35 × 58 × 27 cm (W × H × D) |
| Weight | 15kg |
| Frequency Response | 20Hz-25kHz |
| Treble | 25mm Dome |
| Midrange | 38mm Dome |
| Bass | 300mm Paper Cone |
| Impedance (Nominal) | 8Ω |
| Impedance (Minimum) | 4Ω |
| Crossover Frequencies | 650Hz, 4.5kHz |
| Recommended Amplifier Power | 10-150W |
| Power Handling (RMS) | 100W |
| Power Handling (Peak) | 150W |
| Enclosure Type | Sealed |
| Enclosure Volume | 55l |
| MSRP (1978) | DM 878 |