SX-3900
| Brand | Pioneer |
| Function | Amplifier, Integrated (120 watts per channel into 8Ω (stereo)), Radio Receiver |
| Produced | 1980 |
| Country | Japan |
| Form Factor | Tabletop |
| Signal Path | Analog Hardware |
| Dimensions | 526 x 176 x 452 mm |
| Weight | 20kg |
| Frequency Response | 7Hz to 80kHz |
| Links | hifi engine |
| Notes | The Pioneer SX-3900 is an AM/FM stereo receiver incorporating a non-switching amplifier and digital, quartz-servo locked tuning. |