| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Analog Hardware |
| Dimensions | 35.6 × 72.4 × 27.9 cm (W × H × D) |
| Weight | 67lbs |
| Power | 120VAC, 60Hz |
| Treble | Paper Ring/Dome Hybrid |
| Midrange/Bass | 10" Paper Cone (Stepped-down 12" Frame) |
| Output Power (Treble) | 80W (15.5VRMS, 3Ω, 10kHz) |
| Output Power (Midrange/Bass) | 80W (22VRMS, 6Ω, 1kHz) |
| Input Impedance | 100kΩ |
| Impedance (Treble) | 3Ω |
| Impedance (Midrange/Bass) | 6Ω |
| Overload Voltage | 10V |
| Crossover Frequency | 1.5kHz |
| THD (Control Panel, Tweeter, 1V RMS, 10kHz) | 0.05% |
| THD (Control Panel, Woofer, 1V RMS, 1kHz) | 0.05% |
| THD (Amplifier, Treble, 80W, 10kHz) | 0.1% |
| THD (Amplifier, Midrange/Bass, 80W, 1kHz) | 0.1% |
| Hum and Noise (Control Panel, Treble, 1V) | 0.1mV |
| Hum and Noise (Control Panel, Midrange/Bass, 1V) | 0.1mV |
| Hum and Noise (Amplifier, Treble) | 0.5mV |
| Hum and Noise (Amplifier, Midrange/Bass) | 0.5mV |
| Hum and Noise (System) | 2.0mV |
| Enclosure Type | Sealed |
| Enclosure Construction | Particle Board |
| Finish | Walnut |
| MSRP (1977) | $450 |
| Notes | Serial numbers up to Z0 00099 |
