LO 40 (52 991)
| Brand | Loewe Opta |
| Function | Speaker |
| Produced | 1966 |
| Country | Germany |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 60 × 25 × 22 cm (W × H × D) |
| Frequency Response | 40Hz-20kHz (DIN 45 500) |
| Treble | 75mmx130mm Paper Cone |
| Midrange/Bass | 17cm Paper Cone |
| Impedance (Nominal) | 4Ω |
| Crossover Frequency | 1kHz |
| Power Handling | 20W |
| Enclosure Type | Sealed |
| Enclosure Volume | 25l |
| Finish | Polished Walnut, Matte Walnut, Teak |
| Notes | Right channel optimized variant |