| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 67.3 × 83.8 × 44.5 cm (W × H × D) |
| Weight | 86lbs (Net), 98lbs (Shipped) |
| Frequency Response | 46Hz-20kHz |
| Treble | 12.76"x22.84" Constant Directivity Horn (Altec Lansing MR994A, Altec Lansing 909-8A) |
| Midrange/Bass | 16" Paper Cone (Altec Lansing 3154) |
| Sensitivity (500Hz-3kHz) | 96.5dB/W/m |
| Impedance (Nominal) | 8Ω |
| Impedance (Minimum) | 6.8Ω |
| Crossover Frequency | 630Hz (Altec Lansing 56-06-027908) |
| Maximum Phase Angle (Inductive) | 39° (Frequency: 1028Hz) |
| Maximum Phase Angle (Capacitive) | 41° (Frequency: 9Hz) |
| Dispersion (Horizontal) | 90° |
| Dispersion (Vertical) | 40° |
| Maximum Output | 120.5dB |
| Power Handling (80Hz-20kHz, AES) | 250W |
| Power Handling (Program) | 500W |
| Power Handling (Peak) | 1000W |
| Enclosure Type | Bass Reflex |
| Enclosure Construction | 0.75" Birch Plywood |
| Finish | Unfinished Birch |
| Notes | Unfinished variant of M500 Maestro |
