2 power acoustik mofo-122x, port
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=122130
Printed Date: November 04, 2025 at 7:34 AM
Topic: 2 power acoustik mofo-122x, port
Posted By: rfhvhtoo
Subject: 2 power acoustik mofo-122x, port
Date Posted: June 03, 2010 at 8:11 PM
Ok so I'm about to go with 2 power acoustik Mofo-122X. Their round port recommendation is 4Dx12L... so i calculated 12.56 Port area (if im correct). they are made for 2cbft but I've got a roughly 3.6cbft box and I'm trying to figure out how I can just pull off 1 Square port tuned at around 35hz.
do i double the port area since i have 2 subs? do i keep the length the same? do i follow the 3:4 ratio rule (supposedly)? can anybody give me what the Length height and depth of the port should be?
Thanks alot, here's the specifics
RMS Power :1200
Fs : 37.28
Qms : 5.425
Vas :0.859
Xmax mm :21
Xmech mm :31.5
Qes : 0.744
Re :3.80
Znom :4
BL :16.807
Qts : 0.654
SPL : 84.164
V.C. Size (in.) : 2.5
V.C. Imp :DVC 2
Sealed :1.50 F3 Hz :43.00
Ported :2.00 Port :4x12 Tune Freq. (Hz) :36.16
F3 Hz :29.18
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Replies:
Posted By: rfhvhtoo
Date Posted: June 03, 2010 at 9:06 PM
I looked for a way to delete the post but couldnt find it. i figured i'd try to figure it out a little more before i ask this. its a pretty repetitive question. sorry
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