Electronic Crossover Field Programmable Card Resistor Chart
Butterworth Alignment
Use 5% resistors in conjunction with .022∝ F standard capacitor.
Low Pass
High Pass
Freq. | R1 | R2 | R1 | R2 |
18.5Hz | 390k Ohm | 390k Ohm | 390k Ohm | 390k Ohm |
26Hz | 270k Ohm | 270k Ohm | 270k Ohm | 270k Ohm |
33Hz | 220k Ohm | 220k Ohm | 220k Ohm | 220k Ohm |
40Hz | 180k Ohm | 180k Ohm | 180k Ohm | 180k Ohm |
48Hz | 150k Ohm | 150k Ohm | 150k Ohm | 150k Ohm |
60Hz | 120k Ohm | 120k Ohm | 120k Ohm | 120k Ohm |
72Hz | 100k Ohm | 100k Ohm | 100k Ohm | 100k Ohm |
88Hz | 82k Ohm | 82k Ohm | 82k Ohm | 82k Ohm |
106Hz | 68k Ohm | 68k Ohm | 68k Ohm | 68k Ohm |
130Hz | 56k Ohm | 56k Ohm | 56k Ohm | 56k Ohm |
154Hz | 47k Ohm | 47k Ohm | 47k Ohm | 47k Ohm |
185Hz | 39k Ohm | 39k Ohm | 39k Ohm | 39k Ohm |
220Hz | 33k Ohm | 33k Ohm | 33k Ohm | 33k Ohm |
270Hz | 27k Ohm | 27k Ohm | 27k Ohm | 27k Ohm |
330Hz | 22k Ohm | 22k Ohm | 22k Ohm | 22k Ohm |
400Hz | 18k Ohm | 18k Ohm | 18k Ohm | 18k Ohm |
480Hz | 15k Ohm | 15k Ohm | 15k Ohm | 15k Ohm |
600Hz | 12k Ohm | 12k Ohm | 12k Ohm | 12k Ohm |
720Hz | 10k Ohm | 10k Ohm | 10k Ohm | 10k Ohm |
880Hz | 8.2k Ohm | 8.2k Ohm | 8.2k Ohm | 8.2k Ohm |
1.06kHz | 6.8k Ohm | 6.8k Ohm | 6.8k Ohm | 6.8k Ohm |
1.3kHz | 5.6k Ohm | 5.6k Ohm | 5.6k Ohm | 5.6k Ohm |
1.54kHz | 4.7k Ohm | 4.7k Ohm | 4.7k Ohm | 4.7k Ohm |
1.85kHz | 3.9k Ohm | 3.9k Ohm | 3.9k Ohm | 3.9k Ohm |
2.2kHz | 3.3k Ohm | 3.3k Ohm | 3.3k Ohm | 3.3k Ohm |
2.7kHz | 2.7k Ohm | 2.7k Ohm | 2.7k Ohm | 2.7k Ohm |
3.3kHz | 2.2k Ohm | 2.2k Ohm | 2.2k Ohm | 2.2k Ohm |
4.0kHz | 1.8k Ohm | 1.8k Ohm | 1.8k Ohm | 1.8k Ohm |
4.8kHz | 1.5k Ohm | 1.5k Ohm | 1.5k Ohm | 1.5k Ohm |
6.0kHz | 1.2k Ohm | 1.2k Ohm | 1.2k Ohm | 1.2k Ohm |
7.2kHz | 1k Ohm | 1k Ohm | 1k Ohm | 1k Ohm |
8.8kHz | 820 Ohm | 820 Ohm | 820 Ohm | 820 Ohm |
10.6kHz | 680 Ohm | 680 Ohm | 680 Ohm | 680 Ohm |
13.0kHz | 560 Ohm | 560 Ohm | 560 Ohm | 560 Ohm |
15.4kHz | 470 Ohm | 470 Ohm | 470 Ohm | 470 Ohm |
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