Rockford Fosgate 500.2 User Manual
– 13 –
XC
ARD
R
ESISTOR
C
HART
Frequency
R1
R2
20Hz
169k
Ω
169k
Ω
25Hz
133k
Ω
133k
Ω
30Hz
110k
Ω
110k
Ω
35Hz
95.3k
Ω
95.3k
Ω
40Hz
84.5k
Ω
84.5k
Ω
45Hz
75k
Ω
75k
Ω
50Hz
68.1k
Ω
68.1k
Ω
55Hz
61.9k
Ω
61.9k
Ω
60Hz
56.2k
Ω
56.2k
Ω
65Hz
52.3k
Ω
52.3k
Ω
70Hz
48.7k
Ω
48.7k
Ω
75Hz
45.3k
Ω
45.3k
Ω
80Hz
42.2k
Ω
42.2k
Ω
85Hz
40.2k
Ω
40.2k
Ω
90Hz
37.4k
Ω
37.4k
Ω
200Hz
16.9k
Ω
16.9k
Ω
300Hz
11.3k
Ω
11.3k
Ω
400Hz
8.45k
Ω
8.45k
Ω
500Hz
6.65k
Ω
6.65k
Ω
600Hz
5.62k
Ω
5.62k
Ω
700Hz
4.75k
Ω
4.75k
Ω
800Hz
4.22k
Ω
4.22k
Ω
900Hz
3.74k
Ω
3.74k
Ω
1.0kHz
3.40k
Ω
3.40k
Ω
1.2kHz
2.80k
Ω
2.80k
Ω
2kHz
1.69k
Ω
1.69k
Ω
3kHz
1.10k
Ω
1.10k
Ω
4kHz
845
Ω
845
Ω
5kHz
665
Ω
665
Ω
6kHz
562
Ω
562
Ω
7kHz
487
Ω
487
Ω
8kHz
422
Ω
422
Ω
Butterworth Alignment Q = .707
1% resistors used with 0.047
1% resistors used with 0.047
µ
F capacitors
Frequency
R1
R2
20Hz
357k
Ω
357k
Ω
25Hz
287k
Ω
287k
Ω
30Hz
237k
Ω
237k
Ω
35Hz
205k
Ω
205k
Ω
40Hz
178k
Ω
178k
Ω
45Hz
162k
Ω
162k
Ω
50Hz
143k
Ω
143k
Ω
55Hz
130k
Ω
130k
Ω
60Hz
121k
Ω
121k
Ω
65Hz
110k
Ω
110k
Ω
70Hz
102k
Ω
102k
Ω
75Hz
95.3k
Ω
95.3k
Ω
80Hz
90.9k
Ω
90.9k
Ω
85Hz
84.5k
Ω
84.5k
Ω
90Hz
80.6k
Ω
80.6k
Ω
200Hz
35.7k
Ω
35.7k
Ω
300Hz
23.7k
Ω
23.7k
Ω
400Hz
17.8k
Ω
17.8k
Ω
500Hz
14.3k
Ω
14.3k
Ω
600Hz
12.1k
Ω
12.1k
Ω
700Hz
10.2k
Ω
10.2k
Ω
800Hz
9.9k
Ω
9.9k
Ω
900Hz
86k
Ω
86k
Ω
1.0kHz
7.15k
Ω
7.15k
Ω
1.2kHz
6.04k
Ω
6.04k
Ω
2.0kHz
3.57k
Ω
3.57k
Ω
3.0kHz
2.37k
Ω
2.37k
Ω
4.0kHz
1.76k
Ω
1.76k
Ω
5.0kHz
1.43k
Ω
1.43k
Ω
6.0kHz
1.21k
Ω
1.21k
Ω
7.0kHz
10.2k
Ω
10.2k
Ω
8.0kHz
909
Ω
909
Ω
Butterworth Alignment Q = .707
1% resistors used with 0.022
1% resistors used with 0.022
µ
F capacitors
a
d
v
a
n
c
e
d
d
v
a
n
c
e
d
O
p
e
r
a
t
e
r
a
t
i
o
n
n
Our tests have shown that using 0.047
µ
f capacitors for frequencies below 100Hz, and 0.022
µ
f capacitors for frequencies
above 100Hz, result in more linear crossover control. Refer to the Specifications page to determine the capacitor value
of each supplied XCard.
of each supplied XCard.