posted
i am about to build a astro van im going to put a wall in it. i am going to run 4 15.my question is that i want to tune it to 70hz how can i do that how big is the box has to be.
Posts: 81 | From: WAIALUA ,HAWAII(NORTH SHORE | Registered: Mar 2006
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-------------------- www.competitionsoundz.com Team R&R TEAM MAXXSONICS (Feel the Power!) TEAM Cactus Sounds (Japan) LFG Fareast. He may not come when you want but, he's always right on time! Posts: 1318 | From: Fukushima, Japan | Registered: Mar 2005
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-------------------- World Record-Loudest SPL in my driveway Team Powermaster/XS-Power Hifonics Amps, Kicker subs-The way it should be Zensky....World Domination at It's Finest www.zensky.com Posts: 3159 | From: Columbus, OH - formerly FL | Registered: Oct 2003
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posted
Our van was peaking at 67 and we had to put an angle in the box to get that
-------------------- 9 time Db Drag world Champion. New bass race vehicle for the 2008 season using all Digital Design speakers and Stetsom amps Posts: 52 | From: Smithfield, NC | Registered: Jan 2008
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posted
most of the time higher the hz the higher your # on the meter. i know this one guy he has a astro van and he told me his van is tune to 70 hz. he has 3 18 and does 172 on the audio control. see my goal is to top that. so at what hz can i top that. and my dream is to do 175 term lab.
Posts: 81 | From: WAIALUA ,HAWAII(NORTH SHORE | Registered: Mar 2006
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I hate to bust your bubble but, if all you needed to do is tune high to get high scores, heck everyone would be tuned to 80Hz! I don't know how much of a difference there is between the ac mike and the TL censor but..a 172. that's asking a lot. what class was/is your friend in? As for your van, looking for scores like that, I can only guess your gonna compete in Extreme!
you got a ways to go grasshopper. I'm not saying its impossible but... it won't happen over night.
-------------------- www.competitionsoundz.com Team R&R TEAM MAXXSONICS (Feel the Power!) TEAM Cactus Sounds (Japan) LFG Fareast. He may not come when you want but, he's always right on time! Posts: 1318 | From: Fukushima, Japan | Registered: Mar 2005
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quote:Originally posted by AudioAnonymous: 70 is too high? I must be doing something wrong.
what are you tuned to?
-------------------- www.competitionsoundz.com Team R&R TEAM MAXXSONICS (Feel the Power!) TEAM Cactus Sounds (Japan) LFG Fareast. He may not come when you want but, he's always right on time! Posts: 1318 | From: Fukushima, Japan | Registered: Mar 2005
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quote:Originally posted by aaron loves kristi: most of the time higher the hz the higher your # on the meter. i know this one guy he has a astro van and he told me his van is tune to 70 hz. he has 3 18 and does 172 on the audio control. see my goal is to top that. so at what hz can i top that. and my dream is to do 175 term lab.
If he does a 172 on the AC then that means he might be doing a 165-167 on the Termlab.
posted
but was that sealed and in legal position? could gain a good bit opening the cab and going to the floor
-------------------- World Record-Loudest SPL in my driveway Team Powermaster/XS-Power Hifonics Amps, Kicker subs-The way it should be Zensky....World Domination at It's Finest www.zensky.com Posts: 3159 | From: Columbus, OH - formerly FL | Registered: Oct 2003
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posted
well his van is extreme plexy glass windows and doors has cement in them and he has a huge port. thats what i am shooting for extreme class.right now he is the loudest in hawaii nobody ever did beat his score for couple of years. but now i am hearing that he is getting ready for spring break national so he might be flying the van up there.
Posts: 81 | From: WAIALUA ,HAWAII(NORTH SHORE | Registered: Mar 2006
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posted
the ac is 5 db off. so at whats hz do you think i should tune to get higher then that. and yup every thing is sealed in that van it is made out mostly cement.
Posts: 81 | From: WAIALUA ,HAWAII(NORTH SHORE | Registered: Mar 2006
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quote:the ac is 5 db off. so at whats hz do you think i should tune to get higher then that. and yup every thing is sealed in that van it is made out mostly cement.
If you're doing that big of a build you realy should be doing your own testing to find the resonant frequiencey of the vehicle rather than relying on internet or secondhand info.
Posts: 36 | From: nz | Registered: Jul 2004
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quote:Originally posted by aaron loves kristi: the ac is 5 db off. so at whats hz do you think i should tune to get higher then that. and yup every thing is sealed in that van it is made out mostly cement.
ac190 shouldnt be anywhere near 5 db off of a termlab score
-------------------- Dustin Page 97 explorer 155.8 Team Deaftraps
posted
AC Meter is more than 5db off from the Term Lab. Well it is for me anyway. I do like 168.5 on the AC Meter and I my best number on the Term Lab so far is a 158.5. May not be the same for everyone but thats what it is for me. I have a 1998 Ford Ranger Ext. Cab Truck with 6 12" Pioneer Subs & 3 Hifonics XX Colossus II amps. Box is @ 68Hz right now. I just tuned it to 72Hz and I will be sure to let you know if that helps any.
posted
sorry i have been on AC that were harder than or within .5 of the termlab, we have shown this before on this forum
-------------------- 2006 IDBL 2ND PLACE WORLD FINALS 2008 World Records TBA LiL Scrappy The Louddest Honda 600 in The World! www.quadaudio.net Posts: 1601 | From: Palm Springs,CA | Registered: May 2002
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posted
That's becuase it's probably the AC190 and not the AC180. (fyi you can change the sinsivitiy on the old one with a turn of the knob to get it closer to TL number but when it's on 0 then it's alot higher in almost all cases) duh
posted
to sum it up for u all the ac 190 is within .5 of the lab, the ac 180 was 5-7 off the termlab, and the audiocontrol 3055/spectrum analyzer was like 10 off, and the good thing about the ac 180 and 3055, is that you can adjust the sensitivity like stated above, then pull the button out and put it back at 0, so people with 100 watts could hit 160 s(with the knob trick), lol
-------------------- ***new setup for 08*** new vehicle 04 navi on 26 s bass race 140-49.9 class hehehehe 4 dd 9918 s 9 kinetik hc 2400s 4 opti 6000d s 2 batcap super 38k batts 260 alt by dom Posts: 1073 | From: b-more murderland MD | Registered: Sep 2003
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posted
mr hard hitter is that true about the ac 180. lucky me then i have my own term lab. maybe thats why i seen this one car win before cause he was losing. yah he jump the meter 5 db and got first place.
Posts: 81 | From: WAIALUA ,HAWAII(NORTH SHORE | Registered: Mar 2006
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posted
im sure of it, i went to a comp 2 years ago in pa where there sponsorer told me, my competition was doing 154 s,( i was worried i was gonna get smoked)he hit a 147.5 on the lab with 4 cadence a7 s and a wall with 2 15 mojos, and i busted him with 2 dd 9515 s and 2 2000x s and 4 doo doo die hard batts, did a 151, in only 7 cube crx box in an explorer the dude was heated i burned his wall out ahha, then he told me he was on the ac 180 mic doing 154 s,i said boooooo!.....lmao
then since i burned him his buddiesfelt bad and brought out the team walrus 16 mojo 2000ds at the time,and then i got busted...lol
-------------------- ***new setup for 08*** new vehicle 04 navi on 26 s bass race 140-49.9 class hehehehe 4 dd 9918 s 9 kinetik hc 2400s 4 opti 6000d s 2 batcap super 38k batts 260 alt by dom Posts: 1073 | From: b-more murderland MD | Registered: Sep 2003
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posted
yah when they hold comps down here they only use the ac they dont want to use the tl. so maybe thats why all there team mates always get atleast top 3 cheeting!!.
Posts: 81 | From: WAIALUA ,HAWAII(NORTH SHORE | Registered: Mar 2006
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posted
This thread made me laugh just a little. hhaha But ya astros should be around 67-73 hz area with a peaked out box. Last year we built one 60 cu/ft tuned to 39 hz, i know i know...got low!!! but with about 6000 rms 4 MTs and it did 160.8 on the TL 2 years earlier this van placed 2nd at finals. Posts: 288 | From: West | Registered: Mar 2006
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