| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 48.3 × 65 × 40.6 cm (W × H × D) |
| Weight | 57lbs (Net), 67lbs (Shipped) |
| Frequency Response | 40Hz-20kHz |
| Treble | 5" Paper Cone |
| Midrange/Bass | 12" Paper Cone |
| Sensitivity (500Hz-3kHz) | 89dB/W/4' (Shelving Controls: Optimum) |
| Sensitivity (500Hz-3kHz) | 91dB/W/4' (Shelving Controls: Fully Clockwise) |
| Impedance (Nominal) | 8Ω |
| Crossover Frequency | 2.5kHz |
| Dynamic Range | 47.5dB |
| Dispersion (Horizontal) | 130° |
| Dispersion (Vertical) | 130° |
| Maximum Output | 107.5dB |
| Recommended Amplifier Power | 12-150W |
| Power Handling | 45W |
| Enclosure Type | Bass Reflex |
| Finish | Walnut and Black Composition Slate |
| MSRP (1977) | $259 |
