SP-80C
| Brand | Monarch |
| Manufacturer | Monarch Electronics International, Inc. |
| Function | Speaker |
| Produced | 1964 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 27.4 × 59.7 × 29.5 cm (W × H × D) |
| Weight | 23lbs (Shipped) |
| Frequency Response | 35Hz-18kHz |
| Driver | 8" Tri-Plex Cone (Monarch SP-803A) |
| Impedance (Nominal) | 16Ω |
| Power Handling | 11W |
| Power Handling (Peak) | 20W |
| Enclosure Type | Bass Reflex |
| Enclosure Construction | 0.75" Hardwood |
| Finish | Walnut |
| MSRP (1964) | $49.95 (Distributor Price (1964): $31.95) |