S-IS21
| Manufacturer | Pioneer |
| Function | Speaker (100 Watt Speakers) |
| Produced | 2004? |
| Country | France |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Analog Hardware |
| Nominal Impedance | 6 ohms |
| Maximum Input Power | 100 watts |
| Tweeter size | 20mm |
| Midrange Driver Size | 66mm |
| Woofer Size | 170mm |
| Connections |
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| Notes | Came bundled with the Pioneer XC IS21MD HI-FI system. |