CS-99AA
| Brand | Pioneer |
| Manufacturer | Pioneer Electronic Corporation |
| Function | Speaker |
| Produced | 1979 |
| Country | Japan |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 41.9 × 63 × 29 cm (W × H × D) |
| Weight | 19.8kg |
| Frequency Response | 25Hz-22kHz |
| Treble | 3" Paper Cone |
| Midrange | 4.75" Paper Cone |
| Bass | 15" Paper Cone |
| Sensitivity | 97dB/W/m |
| Impedance (Nominal) | 8Ω |
| Crossover Frequencies | 1.2kHz, 3.2kHz |
| Power Handling (Nominal) | 50W |
| Power Handling (Peak) | 100W |
| Enclosure Type | Bass Reflex |
| Enclosure Construction | Particleboard |
| Finish | Walnut |