| Form Factor | Floorstanding |
| Signal Path | Analog Hardware |
| Dimensions | 76.2 × 86.4 × 66 cm (W × H × D) |
| Weight | 100lbs (Net), 150lbs (Shipped) |
| Frequency Response | 35Hz-15kHz |
| Treble | 10.6"x25.3" Sectoral Horn (Altec 511B, Altec 908-8B) |
| Midrange/Bass | 15" Paper Cone (Altec ER15) |
| Sensitivity | 103.5dB/W/m |
| Crossover Frequency | 1.2kHz (Altec N1209-8A) |
| Crossover Slope | 12dB/Oct (Second Order) |
| Dispersion (Horizontal) | 90° |
| Dispersion (Vertical) | 40° |
| Power Handling (Nominal) | 125W |
| Enclosure Type | Front Loaded Horn, Bass Reflex (Altec 816C) |
| Notes | Identical to 1235C but for model markings |
