Imperial I
| Brand | Marantz |
| Manufacturer | Marantz, Co., Inc., Superscope, Inc. |
| Function | Speaker |
| Produced | 1968 |
| Country | United States |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 55.9 × 66 × 38.1 cm (W × H × D) |
| Weight | 60lbs |
| Frequency Response | 40Hz-20kHz |
| Treble | 2" Paper Cone (x2) |
| Midrange | 4" Paper Cone (x2) |
| Bass | 12" Paper Cone |
| Imperial (Nominal) | 8Ω |
| Crossover Frequencies | 700Hz, 6kHz |
| Power Handling | 40W |
| Enclosure Type | Sealed |
| Finish | Walnut |
| MSRP (1969) | $299 |