GRF
| Brand | Tannoy |
| Function | Speaker |
| Produced | 1956-1966 |
| Country | United Kingdom |
| Model ID | GRF Corner |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 96.5 × 121.9 × 651.5 cm (W × H × D) |
| Frequency Response | 35Hz-20kHz |
| Driver | 15" Dual Concentric (Monitor Red) (AlNiCo Magnet (Ticonal-G), PepperPot Waveguide Woofer: Paper Cone, 2" Voice Coil Treble: 2" Aluminum Alloy Dome) |
| Impedance (Nominal) | 16Ω |
| Power Handling | 50W |
| Crossover Frequency | 350Hz (Acoustic), 1kHz |
| Enclosure Type | Compound Horn |
| MSRP (1956) | £116 10s |