Polk Audio DB522 DB+ Series 5.25" Coaxial Speakers with Marine Certification, Black
| Country | USA |
| Brand | Design Engineering |
| Manufacturer | Design Engineering |
| Binding | Automotive |
| ItemPartNumber | 50321 |
| Model | 50321 |
| Warranty | Limited Manufacturers Warranty |
| Color | black |
| Size | 5.25" |
| UnitCount | 1 |
| UPCs | 607078503213 |
| EANs | 7258006666925 |
| ReleaseDate | 0000-00-00 |