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				| 1. | What transformer turns ratio is required to match an 8- speaker load so that the effective load resistance seen at the primary is 12.8 k? | 
| A. | 20:1 | 
| B. | 40:1 | 
| C. | 50:1 | 
| D. | 60:1 | 
| Answer» C. 50:1 | |