AA-191
| Brand | Heathkit |
| Manufacturer | Heath Company, Daystrom, Incorporated |
| Function | Amplifier, Integrated (Kit) |
| Produced | 1959 |
| Country | United States |
| Signal Path | Analog Hardware |
| Dimensions | 24.1 × 9.5 × 15.2 cm (W × H × D) |
| Weight | 2.8kg |
| Power | 117VAC, 50/60Hz 49W |
| Frequency Response | 60Hz-20kHz ±1dB (3W) |
| Output Power | 3W |
| Impedance Load | 4/8/16Ω |
| Input Sensitivity (3W) | 0.15V |
| THD (3W, 60Hz-15kHz) | 3% |
| IMD (3W, 60Hz:6kHz, 4:1) | 3% |
| SNR (3W) | 70dB |
| Output Tube | EL84 (6BQ5) |
| Tube Complement | EF86, EL84, 6X4 |
| MSRP (1961) | $16.88 |
| Channels | 1 Channel |
| Connections |
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| Links | Predecessor: EA-1 |
| Notes | Updated EA-1 |