A70
| Brand | Boston Acoustics |
| Designer | Andy Petite |
| Function | Speaker |
| Produced | 1980-1981 |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 35.6 × 61 × 19.7 cm (W × H × D) |
| Weight | 26lbs |
| Frequency Response | 40Hz-22kHz ±3dB |
| Treble | 1" Soft Dome (SEAS, Ferrofluid) |
| Midrange/Bass | 8" Paper Cone |
| Sensitivity | 89dB/2.83V/m |
| Impedance (Nominal) | 6Ω |
| Impedance (Minimum) | 4Ω |
| Crossover Frequency | 2kHz |
| Crossover Slope | 6dB/Oct (First Order) |
| System Resonance | 49Hz |
| Enclosure Type | Sealed |
| Enclosure Construction | Particleboard |
| Finish | Wood grain vinyl |
| Connections |
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| Notes | Identifiable by SEAS tweeter with round faceplate. |