SS-251J
| Brand | Teledyne |
| Manufacturer | Olson Electronics |
| Function | Speaker |
| Produced | 1973-1974 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 29.2 × 50.2 × 24.9 cm (W × H × D) |
| Weight | 30lbs (Shipped) |
| Frequency Response | 50Hz-18kHz |
| Treble | 1.5" Soft Dome (Part #7828B) |
| Midrange/Bass | 10" Paper Cone (Part #7826B) |
| Impedance (Nominal) | 8Ω |
| Power Handling | 60W |
| Enclosure Type | Aperiodic |
| Enclosure Construction | Particleboard |
| Finish | Walnut |
| MSRP (1974) | $68.98 |
| Notes | Dynaco A-25 clone. |