tips on making it louder
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=105533
Printed Date: May 13, 2025 at 4:29 AM
Topic: tips on making it louder
Posted By: theterminator
Subject: tips on making it louder
Date Posted: June 17, 2008 at 1:22 PM
Ok so i just got back from my local shop where i had my system metered. Im running an Arc Audio FD1200 thats powering a 15 inch TC Sounds TC-3000 in a 3.4 cu ft box tuned to 30hz. All this is being controlled by an Alpine CDA-9887 headunit. This setup hit 146.2 DBs with the mic in the kickpanel. What are some ways i can make this system reach as close to 150 db as possible.?
Replies:
Posted By: DYohn
Date Posted: June 17, 2008 at 1:51 PM
Change your tuning making it closer to the resonant frequency of the vehicle. Probably more like 58Hz (a wild guess.) ------------- Support the12volt.com
Posted By: theterminator
Date Posted: June 17, 2008 at 1:58 PM
yeah that was my first thought was to change the tuning frequency. Thanks. What kind of gain should i expect if i was to tune it to the frequency of the vehicle?
Posted By: DYohn
Date Posted: June 17, 2008 at 3:25 PM
Depends. I've seen as much as +6db simply due to tuning. ------------- Support the12volt.com
Posted By: theterminator
Date Posted: June 17, 2008 at 6:33 PM
wow thats quite an increase. Im definantly going to have to do that. Would you suggest a circle port or slot port?
Posted By: stevdart
Date Posted: June 17, 2008 at 9:06 PM
Doesn't matter, whatever fits the box. And excessive noise from the port is not necessarily detrimental when you are trying to add more tenths of a db. For SPL, experiment....a LOT.
-------------
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: theterminator
Date Posted: June 17, 2008 at 9:38 PM
So i thinking a circle port so that i can remove it and tweak with the tuning of the box.
Posted By: DYohn
Date Posted: June 17, 2008 at 9:44 PM
I recommend downloading modeling software like WinISD and determining the optimum enclosure and geometry before you cut any wood. ------------- Support the12volt.com
Posted By: theterminator
Date Posted: June 17, 2008 at 10:06 PM
Ok. What graphs should i pay special attention too? And should i mess with the tuning frequncy and box size?
|