44
4.4
149.6
59.0
45
4.5
153.0
60.3
46
4.6
156.4
61.6
47
4.7
159.8
63.0
48
4.8
163.2
64.3
49
4.9
166.6
65.7
50
5.0
170.0
67.0
51
5.1
173.4
68.3
52
5.2
176.8
69.7
53
5.3
180.2
71.0
54
5.4
183.6
72.4
55
5.5
187.0
73.7
56
5.6
190.4
75.0
57
5.7
193.8
76.4
58
5.8
197.2
77.7
59
5.9
200.6
79.1
60
6.0
204.0
80.4
61
6.1
207.4
81.7
62
6.2
210.8
83.1
63
6.3
214.2
84.4
64
6.4
217.6
85.8
65
6.5
221.0
87.1
66
6.6
224.4
88.4
67
6.7
227.8
89.8
68
6.8
231.2
91.1
69
6.9
234.6
92.5
70
7.0
238.0
93.8
71
7.1
241.4
95.1
72
7.2
244.8
96.5
73
7.3
248.2
97.8
74
7.4
251.6
99.2
75
7.5
255.0
100.5
76
7.6
258.4
101.8
77
7.7
261.8
103.2
78
7.8
265.2
104.5
79
7.9
268.6
105.9
80
8.0
272.0
107.2
81
8.1
275.4
108.5
82
8.2
278.8
109.9
83
8.3
282.2
111.2
84
8.4
285.6
112.6
85
8.5
289.0
113.9
86
8.6
292.4
115.2
87
8.7
295.8
116.6
88
8.8
299.2
117.9
89
8.9
302.6
119.3
90
9.0
306.0
120.6
91
9.1
309.4
121.9
92
9.2
312.8
123.3
93
9.3
316.2
124.6
94
9.4
319.6
126.0
Delay
Number
Time Differ-
ence (ms)
Distance (cm)
Distance
(inch)
95
9.5
323.0
127.3
96
9.6
326.4
128.6
97
9.7
329.8
130.0
98
9.8
333.2
131.3
99
9.9
336.6
132.7
Delay
Number
Time Differ-
ence (ms)
Distance (cm)
Distance
(inch)
About Time Crossover
Crossover (X-OVER):
This unit is equipped with an active crossover. The crossover
limits the frequencies delivered to the outputs. Each channel
is controlled independently. Thus, each speaker pair can be
driven by the frequencies for which they have been optimally
designed. The crossover adjusts the HPF (high pass filter) or
LPF (low pass filter) of each band, and also the slope (how fast
the filter rolls off the highs or lows).
Adjustments should be made according to the reproduction
characteristics of the speakers. Depending on the speakers, a
passive network may not be necessary. If you are unsure about
this point, consult your authorized Alpine dealer.
4.2ch (FRONT/REAR/SUBW.) mode
Low range
High range
Cut-off frequency
(1/3 octave steps)
Slope
Level
HPF
LPF
HPF
LPF
Low
range
speaker
----
20 Hz -
200 Hz
----
FLAT, 6,
12, 18,
24 dB/
oct.
0 to
−12 dB
Rear
high
range
speaker
20 Hz -
200 Hz
----
FLAT, 6,
12, 18,
24 dB/
oct.
----
0 to
−12 dB
Front
high
range
speaker
20 Hz -
200 Hz
----
FLAT, 6,
12, 18,
24 dB/
oct.
----
0 to
−12 dB
39
-EN