SP-CR3
| Brand | Monarch |
| Manufacturer | Monarch Electronics International, Inc. |
| Function | Speaker |
| Produced | 1964 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 45.1 × 59.9 × 17.1 cm (W × H × D) |
| Weight | 35lbs (Shipped) |
| Frequency Response | 40Hz-20kHz |
| Treble | 3" Aluminum Cone |
| Midrange/Bass | 10" Paper Cone |
| Impedance (Nominal) | 8Ω |
| Crossover Frequency | 2.8kHz |
| Crossover Slope | 12dB/Oct (Second Order) |
| Power Handling | 30W |
| Enclosure Type | Sealed |
| Finish | Walnut |
| MSRP (1964) | $79.95 (Distributor Price (1964): $49.90) |