| Form Factor | Floorstanding |
| Signal Path | Analog Hardware |
| Dimensions | 71.1 × 114.3 × 69.9 cm (W × H × D) |
| Weight | 158lbs |
| Power | 120VAC, 50/60Hz 17W 135W (Max) |
| Frequency Response | 35Hz-20kHz |
| Treble | 10.6"x25.3" Sectoral Horn (Altec 511B, Altec 808-8A) |
| Midrange/Bass | 15" Paper Cone (Altec 423-8Z) |
| Sensitivity (100Hz-10kHz) | 104dB/W/4' |
| Sensitivity (EIA) | 57dB |
| Crossover Frequency | 800Hz/1.5kHz (User Selectable) |
| Crossover Slope | 12dB/Oct |
| Maximum Output (100Hz-10kHz, 0.5V, 4') | 116dB |
| Amplifier | Altec 771B |
| Output Power (Treble, 8Ω) | 30W |
| Output Power (Bass, 8Ω) | 60W |
| Input Sensitivity | 0.5V |
| Input Impedance | 15kΩ |
| THD (Treble) | 0.5% |
| THD (Bass) | 0.5% |
| SNR | 80dB |
| Damping Factor | 25 |
| Enclosure Type | Bass Reflex |
| Finish | Black Vinyl |
| Connections | - Input · 1/4" Phone Jack (6.35mm)
|
| Notes | Powered version of the 1204B using 771B biamplifier. |
