Ported Enclosure
Box Volume
*3.4 Cu Ft.
Port Frequency (Fb)
40 Hz
Number of Ports
2
Port Diameter
4 Inches
Port Length
9.9 Inches
Frequency
Frequency
QC15S4 Amplitude Response (dB/Hz)
QC15S4 Amplitude Response (dB/Hz)
Sealed Enclosure
Sealed Enclosure
5 Hz
5 Hz
10
10
50
50
100
100
500
500
1000
1000
0
0
dB
dB
6
6
12
12
-6
-6
-12
-12
-18
-18
-24
-24
F3 = 48
F3 = 48
R
ECOMMENDED
ENCLOSURES
Please Note: Our suggested box volumes are given as internal air requirements
Sealed Enclosure
Box Volume
* 2.0 Cu Ft.
* Box is given as internal air volume including driver
displacement.
QC15S4 AMPLITUDE RESPONSE (DB/HZ)
QC15S4 AMPLITUDE RESPONSE (DB/HZ)
Ported Enclosure
Ported Enclosure
50
50
100
100
500
500
1000
1000
5 Hz
5 Hz
10
10
0
0
dB
dB
6
6
12
12
-6
-6
-12
-12
-18
-18
-24
-24
F3 = 34
F3 = 34
M
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www.extremeconcepts.com
QC15S4 REV 1.16.05
