Round Yoke (4 items)
| Model | R-403S | R-403 | R-302 | R-2X3 |
| Power | 3W | 3W | 2W | 5W |
| Impedance | 8Ω | 4Ω / 8Ω | 8Ω | 4Ω / 8Ω |
| Sensitivity | 96dB/W/M | 96dB/W/M | 96dB/W/M | 85dB/W/M |
| Frequency Response | 700Hz - 9KHz | 700Hz - 9KHz | 900Hz - 10KHz | 500Hz - 10KHz |
| Magnet Dimension (mm) | 13x8 | 13x8 | 13x8 | 13x8 |
| Voice Coil Diameter | 13 Ø | 13 Ø | 13 Ø | 13 Ø |
| Size | 4" | 4" | 3" | 2" x 3½" |
| Available Shape | Square | Round, Square | Round, Square | Round |
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