Twin-Seventy Utility
| Brand | Frazier-May, Frazier |
| Manufacturer | International Electronics Corporation |
| Designer | Edmond May, J.A. Frazier |
| Function | Speaker |
| Produced | 1955 |
| Country | United States |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 124.5 × 57.2 × 39.4 cm (W × H × D) |
| Treble | Horn |
| Midrange/Bass | Paper Cone |
| Crossover Frequency | 800Hz |
| Crossover Slope | 12dB/Oct (Second Order) |
| Enclosure Type | Horn (Cut-Off: 40Hz) |
| MSRP (1955) | $285 |