SP-146
| Brand | Monarch |
| Manufacturer | Monarch Electronics International, Inc. |
| Function | Speaker |
| Produced | 1964 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 24.1 × 16.5 × 8.9 cm (W × H × D) |
| Weight | 2.75lbs (Shipped) |
| Driver | 4"x6" Paper Cone |
| Finish | Walnut |
| Distributor Price (1964) | $4.10 |
| Controls |
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