DN-21
| Brand | Pioneer |
| Function | Crossover (Passive) |
| Produced | 1974 |
| Country | Japan |
| Form Factor | Standard Width |
| Signal Path | Passive Hardware |
| Dimensions | 26 × 6.5 × 14.3 cm (W × H × D) |
| Weight | 0.9kg |
| Crossover Frequency | 2.5kHz |
| Crossover Slope | 12dB/Oct (Second Order) |
| Impedance (Nominal) | 8Ω |
| Power Handling | 80W |
| MSRP (1974) | ¥5,500 |
| Controls |
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