SP-20
| Brand | Monarch |
| Manufacturer | Monarch Electronics International, Inc. |
| Function | Speaker |
| Produced | 1964 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Weight | 3.25lbs (Shipped) |
| Frequency Response | 75Hz-9.5kHz |
| Driver | 8" Paper Cone |
| Impedance (Nominal) | 8Ω |
| Power Handling | 2W |
| Enclosure Type | Sealed |
| Finish | Walnut |
| Distributor Price (1964) | $3.95 |
| Controls |
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