Crossover Tables
                  from Chokes Unlimited
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Crossover Table
18 dB/Octave

2 Ohm
High Pass
2 Ohm
Low Pass
High Pass
                  Crossover Diagram
Low Pass
                  Crossover Diagram
Freq
Hz
Cap 1
F
Coil
mH
Cap 2
F
50
 1061
  4.8 
3183
60
884
  4.0 
2653
70
758
 3.4 
2274
80
663
 3.0 
1989
90
589
 2.7 
1768
100
531
2.4
1592
125
424
1.9
1273
150
354
1.6
1061
175
303
1.4
909
200
265
1.2
796
225
236
1.1
707
250
212
1.0
637
275
193
.88
579
300
177
.80
531
400
133
.60
398
500
106
.48
318
600
88
.40
265
800
66
.30
199
1000
53
.24
159
1500
35
.16
106
2000
27 
.12
80
2500
21
.10
64
3000
18
.08
53
3500
15
.07
45
4000
13
.06
40
4500
12
.05
35
5000
11
.05
32
5500
9.6
.04
29
6000
8.8
.04
27
6500
8.2
.04
24
7000
7.6
.03
23
7500
7.1
.03
21
8000
6.6
.03
20
8500
6.2
.03
19
9000
5.9
.03
18
9500
5.6
.025
17
10000
5.3 
.02
16
Freq
Hz
Coil 1
mH
Cap
F
Coil 2
mH
50
9.5
2122
3.2
60
8.0
1768
2.7
70
6.8
1516
2.3
80
6.0
1326
2.0
90
5.3
1179
1.8
100
4.8
1061
1.6
125
3.8
849
1.3
150
3.2
707
1.1
175
2.7
606
.91
200
2.4
531
.80
225
2.1
472
.71
250
1.9
424
.64
275
1.7
386
.58
300
1.6
354
.53
400
1.2
265
.40
500
1.0
212
.32
600
.80
177
.27
800
.60
133
.20
1000
.48
106
.16
1500
.32
71
.11
2000
 .24.
53
.08
2500
20
42
.06
3000
.16
35
.05
3500
.14
30
.05
4000
.12
27
.04
4500
.11
24
.04
5000
.10
21
.03
5500
.09
19
.03
6000
.08
18
.03
6500
.07
16
.02
7000
.07
15
.02
7500
.06
14
.02
8000
.06
13
.02
8500
.06
12
.02
9000
.05
12
.02
9500
.05
11
.02
10000
.05
11
.02
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