antonmiller

weldingsupply.com thats where i get my stuff

why are you at the airport weekly? work? i would hate to be on a plane once a week.

I told you exactly what product you need to look for in my 2nd paragraph. What more do you want? yes i know, a 1/3 octave that starts at 20 hz, but what brand, i now know what type, but now what is a good brand. not trying to be a menace or anything, just trying to do it right. its like telling some one they need an amplifier that does 1000wrms at 2 ohms, does that mean every amp out there will work for them? no. who knows i might chose the worst one... i dont want that to happen. sorry if you consider this spoon feeding, but it will help alot! thanks, Anton Miller

should work, just remember your going to need the tool that installs and removes this, gunna be extra money IIRC.

seems to be what people are saying, but we are unsure as to which size washer we will need. i would use mcmaster for the 1/4-20 bolts, just serch socket head cap screws and then go form there, the 1/4 is the major diameter and the 20 is the thread pitch (threads per inch) you would need to specify the length of the screw, dont forget tee nuts.

huge upgrade in forums!!!! Welcome aboard!

that might be for the best as i would like to bolt everything down with the same size bolt, i have a saz-3000 and im not sure if the 5/16" bolts would fit that either, maybe just getting the 1/4-20's would be for the best. so i still would like to know the size of the washer. and would i need the washer with the 1/4-20's?

and i should probly share my favorite bolts and nuts and well anythign else sites. lol MSC Flat Washers I use this place for anything i need next day. and i mean anything hardware related. Mcmaster Carr This place is just awesome. they have everything! and its easy to find. this is where im buying my hardware for this. they even have copper and aluminum bars for buss bars. I have more, but those two cover the Car audio spectrum of my life. Many more for my Tool design life. lol and I guess the most important thing I would need is what size O.D. washer would i need to not "rip up" the surround. Thanks again.

it will be a socket head cap screw (allen head). i havent ordered anything yet and i can order w/e size i need and i know where to get custom washers i dont need to turn down. also why would the bolt tear up the surround? would deburring the bolt help? and what size o.d. washer would i need? thanks, Anton Miller

hmmmm, thats just on the other side of the cities from me. we may have to meet up sometime. Where abouts? (to both of you) Invergrove Heights

If you put your EQ to -2 @ 60hz, then the signal shouldn't be down -8 @ 32hz. The signal @ 32hz may be down some, but it will be some amount less than -2 (the adjustment at the center frequency of the EQ). One thing you need to understand however is that there is no EQ on the market that will allow you to adjust individual frequencies. Every EQ has an Q factor. The value of Q tells you how wide of a bandwidth of frequencies will be affected by an adjustment made to the EQ at a given center frequency. The higher the Q, the narrower the bandwidth. So when you make an adjustment at 50 or 60hz, some range of frequencies above and below that frequency (the bandwidth depends on the Q) will be affected by the adjustment (the further from the center frequency, the less the signal is affected). So any EQ won't offer exactly what you want. An adjustment at one frequency will affect frequencies around it.....there's no escaping this fact. A parametric EQ allows you to adjust the Q factor as well as the center frequency of EQ bands. This would allow you a little more control over the effect of the EQ, but parametric EQ's generally have less EQ bands. So while their control is a little better, the give you less bands to play with. A graphic EQ has fixed center frequencies and Q factors, so there is less flexibility but they generally offer more bands. If you want "a lot" of control in the bottom 2 octaves, you'll probably have to go the route of a 1/3 octave graphic EQ. It would give you the most bands to contour the sound. A typical 1/3 octave graphic EQ that begins at 20hz would have center frequencies in the bass region of 20, 25, 31.5, 40, 50, 63 & 80hz. Most parametrics will likely offer only around 2 bands of adjustment within the same 2 octaves. I'd also ask what subwoofer and enclosure you were using? A change in enclosure alignment may help partially solve the issues you are having aswell. Fixing some response issues related to the enclosure would reduce the amount EQ necessary to reach your target response. Well right now its the Fi car audio BL in a 2.5 cuft box with 42 sq inches of prt tuned to 34 hz. im will be putting the BTL in the same exact enclosure(designed for a BTL). the amp for the bl is the rockford t1500 and the amp for the BTL will be the sundown saz-3000. I dont think the question will be answered by me telling you what equiptment im using, just because I dont have an issue per say, just a want. I wish to turn down frequencies and boost frequencies at will, the standard 2 band eq for the sub range will not do. i wish to boost the bottom range, say 30-36, flatten out the middle sub range say 37-45 and turn down the 50-65 hz frequencies without having them be too quiet, if i set my LPF to say 50 hz then the 65 hz notes are a little bit quieter than i would like, and if i turn the LPF to say 60 hz then the 50 hz frequencies are anoyingly loud on music (rap/hip hop), at least with the BL the 50 hz notes heat up the woofer and cause me to be worried and i turn down the volume untill a lower note comes again. its just not really an issue, i know im overpowering the sub, but it takes it just fine around tuning, then at like 47+ it just gets all crazy. just not sure how to explain it. i thought maybe an EQ would help, but im not sure. just if anyone has an eq in mind that will allow some sort of tuning on the low end other than 32 and 60 hz i would appreciate it.

ive been looking there, but i dont know what im looking for. as in i have no clue whats good or bad. I like this one, but not sure if its a good one or not, i like the SPL display thing. that would help for testing on the fly...

do you think you could have fit bigger ones in there? not that oyu would need to i guess... those ones should be good nough. i just want a really strong hold on the sub. also installing 3 18" btl's in a jeep and want ot make sure the bolts wont snap. thanks

well i still cant find an eq that will do what i want it to do. what are the single frequency ones that m5 was talking about?

I dont care if you guys bicker in my post, just as long as i get the question awnsered. lol. i like reading other people bicker back and forth. but i agree with m5, not many songs out there that have those low, LOW notes. a few, but not many. and a low note for like 1 sec shouldnt count. lol

hmmmm, thats just on the other side of the cities from me. we may have to meet up sometime.

IMO that is a waste of an eq. If there is nothing to fix there is nothing you need to control better. Plain and simple. On the other hand if you have issues with your response an eq can be a godsend. Without knowing what you want to address it won't be possible to recommend an eq. BTW, 25,30,45 won't really do you any better than 32 & 60. An adjustable Q & selectable single frequency eq would go much further towards helping than adding a band to the two you have. Well basically what i want is for the sub to play frequencies up to say 65 hz, but not as loud as they are now. so i want more control over the "boost" i guess. i know i can set the low pass filter and all that good stuff. but it doesnt give much control. I want to have say all frequencies from 50-65 hz to be at like -3 db then have the rolloff be at 65. not sure if im frasing this correctly or not. but if i set the 60 hz freq (with the 60 and 32 EQ) to like -3 then then it effects the 45 hz frequencies and all that, makes a slope of negative for a while, further than i want. and i want to do the same thing for lower notes as well. i wish to be able to boost or negative boost where needed. I have an oscope and know how to use it. just kind of wondering if there is such a thing out there. now you said selctable single frequencies, what do those do? sounds like what i want... Much better. Now what part of that doesn't it do now? well right now i just have the setting on the amp and the headunit's 7 band eq, which only one is for the sub (60 hz or is it 50? Cant remember). so if i turn the 50 or 60 hz one down it turns the lows down, not ideal in my situation. so i think it effects the "wave" or "slope" of the signal. so say if i put the 50 hz to like -2 then 32 hz would be at like -8 (not sure if this math is correct). but it sort of explains where im coming from. and say you had a 60 and a 32 hz adjustment. if you turned down the 60 wouldnt the signal be in negative db's untill it hit 32? then it would flaten out right? maybe my logic is wrong, but it seems to be right per an ear test. so refering to my last post, i wish to control certain frequencies with more "accuracy". like the 50-65 hz at - 3db signal and the rest would be a case to case thing depending on subwoofer movement/heating up and so on. just somthing to think about maybe. i may be way off on this and need to be set straight. IDK somtimes my logic is really bad. IDk if that gave you more info, but it took me a while to type it. lol, also i know my spelling is horrible. its late and im tired so....yea... Thanks for your time.

IMO that is a waste of an eq. If there is nothing to fix there is nothing you need to control better. Plain and simple. On the other hand if you have issues with your response an eq can be a godsend. Without knowing what you want to address it won't be possible to recommend an eq. BTW, 25,30,45 won't really do you any better than 32 & 60. An adjustable Q & selectable single frequency eq would go much further towards helping than adding a band to the two you have. Well basically what i want is for the sub to play frequencies up to say 65 hz, but not as loud as they are now. so i want more control over the "boost" i guess. i know i can set the low pass filter and all that good stuff. but it doesnt give much control. I want to have say all frequencies from 50-65 hz to be at like -3 db then have the rolloff be at 65. not sure if im frasing this correctly or not. but if i set the 60 hz freq (with the 60 and 32 EQ) to like -3 then then it effects the 45 hz frequencies and all that, makes a slope of negative for a while, further than i want. and i want to do the same thing for lower notes as well. i wish to be able to boost or negative boost where needed. I have an oscope and know how to use it. just kind of wondering if there is such a thing out there. now you said selctable single frequencies, what do those do? sounds like what i want...

not sure if its a needing to fix thing, more of a wanting more control thing. i would like an equalizer that has the most control over the signal. im not concerned about the mids and highs as much as i am the sub frequencies. i would like more options than just 32 and 60 hz. maybe like a 25 30 and 45? but idk how i would go about looking for and eq like that.

where in mn are you at? im in invergrove heights. trying to set up a team and forum for just mn guys to try to get a good competition/show base started in mn. basically just a place to find out when and where shows are. pm me if interested.

just an update. i ordered the BTL. and installed both boxes. so far i cant tell a difference between the 2 but im still having over excursion issues. but hopfully the BTL reacts differently in these boxes then the BL. so here are some installed pics. please remember this is a temporary install. did no effort in hidding wires or making it look good. oh and ignore the giant scratch on the top of the tall box, had some issues getting it in the car. lol

ok for some odd reason my pdf hosting site isnt working. ill try again tomorrow.

when i get home ill post dwgs of all three boxes. but im pretty sure they are correct. but we will see.

well i know im overpowering it. the thing is it never had these excursion issues with the previous box. it was just fine before, but now its happening with both of the new boxes.... maybe the overpowering finally caught up with it. we will see if it happens with the BTL. If any one else has any idea why it would do this please let me know.

looke like you were putting a sona in at first. lol nice looking build. gives me some ideas for walling a vehicle.