AC-1204
| Brand | Nelson-Reed |
| Manufacturer | Nelson-Reed Co. |
| Designer | Ron Nelson, Bill Reed |
| Function | Crossover |
| Produced | 1987-19?? |
| Country | United States |
| Form Factor | 19" Rackmount |
| Signal Path | Analog Hardware |
| Dimensions | 1U |
| Frequency Response | 16Hz-62Hz ±2dB (12Hz-80Hz -10dB) |
| Crossover Frequency | 62Hz |
| High Pass Filter Frequency | 10Hz |
| High Pass Filter Slope | 48dB/Oct (Eighth Order) |
| Links | Associated Bass Module: Nelson-Reed TW-1204 |
| Notes | Part of the 1204 subwoofer system. Intended for use with TW-1204 bass unit. |