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Focal 25 A1 Manuel D'utilisation page 8

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U s e r
M a n u a l
30 A1 DB - Sealed enclosure
Frequency response
F-3
Boost max.
Calculating the internal volume
Internal volume calculation:
Vb = B x C x {D+(A-D)/2}
Fréquence (Hz)
25l
49Hz
2dB/80Hz
1.5dB/75Hz
30l
35l
47Hz
46Hz
1dB/70Hz
Internal
25l
volume
1
335
A
13,19"
335
B
13,19"
400
C
15.75"
210
D
8.25"
30 litres (1.06 cu.ft)
Fast and tight bass
40 litres (1.41 cu.ft)
Punchy and dynamic bass (best compromise)
50 litres (1.76 cu.ft)
Deep and articulate bass
40l
45Hz
1dB/70Hz
30l
35l
370
370
14.57"
14.57"
370
370
14.57"
14.57"
380
435
14.96"
17.13"
237
237
9.33"
9.33"
1 - External sizes in inches and millimetres with sides of 19 mm thickness
8
50l
44Hz
-
40l
50l
370
450
14.57"
17.72"
370
440
14.57"
17.32"
490
440
19.29"
17.32"
237
260
9.33"
10.24"

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30 a130 a1 db