Tympani IIIA-TM
| Brand | Audio Research, Magnepan |
| Manufacturer | Magnepan, Inc., Audio Research Corporation |
| Designer | Jim Winey |
| Function | Speaker |
| Produced | 1974 |
| Country | United States |
| Model ID | T-IIIA-TM |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 81.3 × 182.9 × 2.5 cm (W × H × D) |
| Weight | 98lbs (System Shipped) |
| Frequency Response | 100Hz-18kHz ±2dB, 100Hz-20kHz ±4dB |
| Treble | 88in² Push-Pull Planar-Magnetic |
| Midrange | 504in² Single-Ended Planar-Magnetic |
| Sensitivity | 94dB/10W/2m |
| Impedance (Nominal) | 8Ω |
| Crossover Frequencies | 1.6kHz |
| Crossover Slope | 6dB/Oct (First Order) |
| Power Handling (Program) | 300W |
| Enclosure Type | Dipole |