Model One Series II
| Brand | Altec Lansing, Altec |
| Manufacturer | Altec Corporation |
| Function | Speaker |
| Produced | 1978 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 30.5 × 57.2 × 27.9 cm (W × H × D) |
| Weight | 26lbs (Net), 30lbs (Shipped) |
| Frequency Response | 50Hz-20kHz |
| Treble | 4" Paper Cone |
| Midrange/Bass | 8" Paper Cone |
| Sensitivity (500Hz-3kHz) | 89dB/W/4' |
| Impedance (Nominal) | 8Ω |
| Crossover Frequency | 3.5kHz |
| Dispersion (Horizontal, 800Hz-8kHz) | 125° |
| Dispersion (Vertical, 800Hz-8kHz) | 120° |
| Recommended Amplifier Power | 10-75W |
| Maximum Output | 104dB |
| Power Handling | 30W |
| Enclosure Type | Sealed |
| Finish | Walnut |
| MSRP (1978) | $129 |