| Model ID | High Fidelity Amplifier Kit |
| Signal Path | Analog Hardware |
| Dimensions | 33.7 × 16.8 × 21.6 cm (W × H × D) |
| Weight | 23lbs (Shipped) |
| Power | 105-125VAC, 50/60Hz 100W |
| Frequency Response | 20Hz-20kHz ±1dB |
| Output Power | 20W |
| THD (20W) | 1% |
| Impedance Load | 4/8/16/500Ω |
| Output Tube | 6L6 |
| Tube Complement | 6L6G (x2), 12AX7, 12AU7 (x2), 5U4G |
| MSRP (1954) | $35.50 |
| Channels | 1 Channel |
| Controls | - Tone (Bass, 30Hz) · Rotary Pot · ±15dB
- Tone (Treble, 15kHz) · Rotary Pot · ±15dB
|
| Links | Predecessor: A-9A · Successor: A-9C |
| Notes | Larger power transformer and improved output transformer compared against A-9A. Improved negative feedback circuit at second 12AU7. |
