ilovebass808 Posted January 10, 2012 Report Share Posted January 10, 2012 I was wondering at what hz is a box considered a SPL box? I'm asking this because there's a comp coming up in my area and it's gonna be my first comp ever. So I don't know one thing about it. So I was thinking maybe the tuning on a SPL box is a little bit higher than a daly driver box? If there is will the "SPL" box increase my score or will it stay the same as my daily driver box? With my daily driver box I scored a 136.2 iirc. But I don't have access to a term lab to just keep testing with different kind of boxes to tell wether it will help or not. My daily box is tuned to 34 hz. Thanks in advance! Quote Check out my build! http://www.stevemeadedesigns.com/board/topic/129983-99-chevy-s10-build-log/ Link to comment Share on other sites More sharing options...
Joe X Posted January 10, 2012 Report Share Posted January 10, 2012 SPL boxes peak output are frequently in the 40s region, enclosures are usually tighter the subwoofers used are usually high Fs. Just to give you an idea. Quote Link to comment Share on other sites More sharing options...
n8ball2013 Posted January 10, 2012 Report Share Posted January 10, 2012 SPL boxes peak output are frequently in the 40s region, enclosures are usually tighter the subwoofers used are usually high Fs. Just to give you an idea. actually they are meant to peak at the resonant frequency of the vehicle. That way your enclosure peak and cabin peak are working together. it doesnt necessarily mean its in the 40s. CRXs peak in the 50s. tahoes and hte like peak in the 30s. Woofers dont need to have a higher FS to be used in spl applications. They just need to handle an absurd amount of power for a few seconds. Thats why you usually see the big 4inch coiled woofers. That does lend itself to have a higher fs in most cases but not always. Quote THERE IS NO BUILD LOG! 1998 Chevy Silverado ext cab Alpine CDA-9887 4 Team Fi 15s 2 Ampere Audio TFE 8.0 2 Ampere Audio 150.4 3 Digital Designs CS6.5 component sets Dual Mechman 370XP Elite alternators inbound! 8 XS Power d3400 6 XS power d680 Second Skin Stinger Tsunami Wiring Sky High A Real Voltmeter not a piece of shit stinger. Link to comment Share on other sites More sharing options...
ilovebass808 Posted January 10, 2012 Author Report Share Posted January 10, 2012 So should I try and build a box at 40 hz? Or should I just use my daily box? I have a Chevy s10 extra cab and DC level 4 12' running off a DC 1.2k if that helps anything Quote Check out my build! http://www.stevemeadedesigns.com/board/topic/129983-99-chevy-s10-build-log/ Link to comment Share on other sites More sharing options...
ilovebass808 Posted January 10, 2012 Author Report Share Posted January 10, 2012 Bump. Anymore opinions? Quote Check out my build! http://www.stevemeadedesigns.com/board/topic/129983-99-chevy-s10-build-log/ Link to comment Share on other sites More sharing options...
varietyguy Posted January 10, 2012 Report Share Posted January 10, 2012 When is the comp? Your going to need a meter (TL) to build a proper spl box or your just going to guesstimate. We can give you advice and designs to help you out. But we need the specs of your box and preferably pics. and need to know what your metering at now and where your peaking at. Quote 1992 Mazda 323 http://www.stevemead...323-wall-build/ Link to comment Share on other sites More sharing options...
EBW Posted January 10, 2012 Report Share Posted January 10, 2012 OK here's what I did, I took a single 12 in a sealed box and ran a sweep, term lab said my res freq was 49 hz, so I built the box with 16.15 in^2 of port per ft^3 of net volume for an (18") and tuned to 46, and it worked out good my peak is 49hz, I would try and track down someone with a TL and start there, spl boxes are normally fairly small (around mins for sub spec) lots of port, lots of power. Quote Kenwood KIV-BT900 Front Stage RF 400-4 Runs off dedicated 4 awg ofc RE 6.5 125.5. Lanzar Max Pro 6.5 Boston S60 6.5 components Rear Soundstream BX-15 Boston S60 6.5 components 4x Sundown SA8 v1.5 Crescendo BC3500D 2.4 net 28hz 4 runs of 0 gauge Big 3 HC2400 700ca up front Singer 350 Amp Alt No deadener :/ Scytek Galaxy Alarm Link to comment Share on other sites More sharing options...
stroupe79 Posted January 10, 2012 Report Share Posted January 10, 2012 Where can you find out the resonant frequency for a particular vehicle? Would be helpful to know where your "sweet spot" is... Quote http://www.stevemead...cherokee-build/ 2005 Jeep Grand Cherokee Alpine CDE-hd148bt Alpine PKG-RSE2 PRV Audio (4) 6MB200 front/rear doors PRV Audio (4) TW350Ti dash/rear doors Kicker KX350.4 Obsidian Audio (1) 18 D4 v2 revamp (2) Stereo Integrity HT 18d2DC Audio 1.2k5.25ft^3 tuned @34hz revamp Infinite Baffle Cpillar AudioTechnix 60mil deadenerKnuKonceptz & SkyHigh wire (complete setup) Link to comment Share on other sites More sharing options...
ilovebass808 Posted January 10, 2012 Author Report Share Posted January 10, 2012 It's on the 21st. But I probably won't have any access to a TL anytime soon. Im metering at 136.2 sealed and 141.0 with the windows down. I'm not sure what freq I was at though. I didn't ask what it was. I just took a picture if the score. I also don't have a lot of space for the box because i have my second battery next to the box. If you need anymore information or pics just lmk what you want pics of and I'll try and post it up later on tonight or in the afternoon. Quote Check out my build! http://www.stevemeadedesigns.com/board/topic/129983-99-chevy-s10-build-log/ Link to comment Share on other sites More sharing options...
FroznBeavrBALLs Posted January 10, 2012 Report Share Posted January 10, 2012 there is no real list of what vehicles peak at what frequency. You have to test it out. each car is different. Quote 2 DC 12" lvl 4s 1 DC 1.2k XS Power S3400 big 3 Alll KNU wire Pioneer HU cheapo Legacy coaxes (just for now) http://www.stevemead...n-sentra-build/ Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.