Imperial 4B
| Brand | Marantz |
| Manufacturer | Superscope, Inc. |
| Function | Speaker |
| Produced | 1971 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 26 × 46 × 19.1 cm (W × H × D) |
| Weight | 14lbs |
| Frequency Response | 60Hz-18kHz |
| Treble | 1.75" Paper Cone (Phenolic Ring, Outer Diameter: 3.5") |
| Midrange/Bass | 8" Paper Cone |
| Impedance (Nominal) | 8Ω |
| Crossover Frequency | 2kHz |
| Power Handling (Music) | 30W |
| Enclosure Type | Sealed |
| Finish | Walnut-grain Vinyl |
| MSRP (1971) | $59 |