| Model ID | A403 |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 32 × 57 × 25 cm (W × H × D) |
| Weight | 11kg |
| Treble | 1" Textile Dome (SEAS H-086) |
| Midrange | 4" Cone |
| Bass | 10" Paper Cone (SEAS 25 F-EW) |
| Impedance (Nominal) | 8Ω |
| Sensitivity | 89dB |
| Enclosure Type | Aperiodic |
| Enclosure Construction | Particleboard |
| Finish | Walnut |