KSC-1
| Brand | KSC |
| Manufacturer | KSC Systems, Inc. |
| Function | Speaker |
| Produced | 1963 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 30.5 × 50.8 × 31.8 cm (W × H × D) |
| Weight | 28lbs |
| Frequency Response | 50Hz-20kHz ±3dB |
| Treble | 3.5" Paper Cone (SEAS) |
| Midrange | 3.5" Paper Cone (SEAS) |
| Bass | 10" Paper Cone (SEAS) |
| Impedance (Nominal) | 8Ω |
| Crossover Frequencies | 750Hz, 3.5kHz |
| Finish | Walnut |
| MSRP (1965) | $89.95 (Custom Finish: $105) |