Ported Enclosure

Box Volume *2.0 Cu Ft.

Port Frequency (Fb) 35 Hz

Port Diameter 4 Inches

Port Length 11.97 Inches

FrequencyFrequency
QC12S4 Amplitude Response (dB/Hz)QC12S4 Amplitude Response (dB/Hz) Sealed Enclosure Sealed Enclosure
5 Hz5 Hz 1010 5050 100100 500500 10001000
00
dBdB
66
1212
-6-6
-12-12
-18-18
-24-24
F3 = 35F3 = 35RECOMMENDED ENCLOSURES
Please Note: Our suggested box volumes are given as internal air requirements

Sealed Enclosure

Box Volume * 1.0 Cu Ft.

* Box is given as internal air volume including driver
displacement.
QC12S4 AMPLITUDE RESPONSE (DB/HZ)QC12S4 AMPLITUDE RESPONSE (DB/HZ) Ported Enclosure Ported Enclosure
5050 100100 500500 100010005 Hz5 Hz 1010
00
dBdB
66
1212
-6-6
-12-12
-18-18
-24-24
F3 = 34F3 = 34
Manual By
www.extremeconcepts.com
QC12S4 REV 1.16.05