U-321
| Brand | Cerwin Vega |
| Manufacturer | Cerwin Vega Inc. |
| Function | Speaker |
| Produced | 1980 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 39.4 × 67.9 × 38.1 cm (W × H × D) |
| Weight | 56lbs |
| Frequency Response | 38Hz-17kHz ±4dB |
| Treble | 1" Horn-Loaded Dome |
| Midrange | 6" Paper Cone |
| Bass | 12" Paper Cone |
| Sensitivity | 98dB/W/m |
| Impedance (Nominal) | 8Ω |
| Crossover Frequencies | 800Hz, 3.5kHz |
| Recommended Amplifier Power | 5-80W |
| Power Handling | 80W |
| Enclosure Type | Bass Reflex |
| MSRP (1980) | $265 |