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Kevin M

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Posts posted by Kevin M

  1. A wall question for the experts

    in Subwoofers / Enclosures

    Posted · Edited by TheScottishBear

    I would put sealed on the table. If I had some serious gear to play with I would try and maximize the potential for each by going four ported. With those Dayton's, I would use the price point to my advantage and go with six sealed in the clam. Just make the wall as big as possible without creating any dead space using the trunk.

    -Drew

    You have me fired up again about it. I definitely would like to try it. My above comment was me using home audio ideas and applying it to car audio. WRONG lol I can see why you laughed. A cars internal space is much easier to excite than a large room in a house. Lower freq. would be easier to achieve despite a smaller enclosure. Cone area would help with that as well.. Does that mean I could build it to 24 cu and still play to the Fs 25hz?

  3. A wall question for the experts

    in Subwoofers / Enclosures

    Posted · Edited by TheScottishBear

    I know this may sound crazy...

    you have so much cone with six 18s have you considered just going sealed? It is similar to tunnels that are not ported but they have so much fucking cone and motor force in such a small space they end up really loud and sound really good. IF you can somehow it 60" wide in a car :blink: six 18s in a sealed horizontal clam would be different, be reliable, and sound pretty damn good.

    -Drew

    Don't give me any ideas lol I thought about sealed but these Daytons need at least 6cu just so I can get any kind of response to 30 hz.

  5. A wall question for the experts

    in Subwoofers / Enclosures

    Posted · Edited by TheScottishBear

    This fall I would like to rebuild my wall but I have a couple questions about it. The plan is to do 6 18" in a ported clamshell but to get the necessary airspace I will have to build into the trunk. I need to know the pros and cons of this. My main question is, Would there be excessive port turbulence due to the enclosures shape and is there any way to counteract it? Would you recommend a different style of ported enclosure? I don't have any problem with cutting the rear deck and getting some supports welded in.

    The present wall is ~19 cu. I have a big trunk that I can get a ton of cubes from. I am kinda stuck on the idea but I don't have a benchmark to compare it to. If it possible to build it I definitely want to but if the engineering problems will be too difficult I would really like someone to tell me. I am happy to admit I might be a little out of my depth. lol And telling me I am a nut for wanting to put 6 18" in a passenger car isn't a good enough reason for me not to do it. lol

  6. Need help with new system going kinda big

    in General Audio - Can't find a category for your question? Ask here.

    Posted

    alright what will uall suggest i already have 4 sa 12's and a powerbass xa3000d should keep it or add to it? like more power or more subs?

    Are you not happy with the output from the above setup? Throwing a bunch of power at the problem isn't always necessary. You could try a more efficient design like bandpass or ported at a different freq. to get more out of what you already have. What are your goals? Is walling an option? What kind of music do you prefer? Are you comfortable fabricating pods for the doors or kicks? How much are you willing to spend on your frontstage? Do you want a daily monster over 150db? These are just a couple of the questions you need to ask yourself.

    Most of us have gone through several setups trying to build a future-proof system. Stick to a budget if you must but not at the expense of what you want.Take your time and do some research and scour the net for deals. If it takes a year to get everything you want; fuck it, that's how long it takes. hahahaha

    In the end it all comes down to how far you are willing to go to get what you want. I have spent ~2k and my setup does 145's on music (1500 watts) which I think is great. It's certainly possible to get loud-ish lol on low power with inexpensive components...but it will take some research like I mentioned. Once you get a handle on what you really want out of your system you'll be much happier and building it should be easier.

  10. heard 160db for the first time

    in Off Topic - Random, Misc posts - the forum "Junk Drawer"

    Posted

    Did you have any chest pain? I felt jacked up for like 10 minutes afterwards and that was only like 25 seconds. lol I took it like a boss but Lem can tell you I made " bass face." I wasn't about to tap. :P Whats crazy is I was listening to 155+ vehicles all day. I got in Mike's van (Mistrass) and it was like the first time I had heard a system again. Felt like I was just in a car accident.haha.

  14. Will this Super Tweeter work with this Crossover?

    in Mid's and highs

    Posted

    The xover point depends on a few things. Wattage and the slope of the x-over being the most important. You could run them all the way to 3k if you were running them under rms with a slope like 18 or 24db/ octave. If you are running them with 100 watts the eminence xover should be fine at 12db/octave. I run selenium compression drivers down to 1k but I have them on half rms and active 24db/octave. These tweets are incredibly efficient 111 db and get stupid loud with a small amount of wattage. You will need a lot of cone area or some pro audio mids to keep up with them. Those bose won't begin to keep up. Too much difference in sensitivity.

    You could cross them at 8 or 10 k but you will need another tweeter that played up to around 16k and lacked a little of that shimmer that people like. That is why people use supertweeters in home audio and some car audio setups.

    how much do you want to bet that everything you just said went over this guy's head? thats why I didnt go into great detail.

    I still think a full detailed explanation could help. If he has questions about it he can always ask.

  16. Will this Super Tweeter work with this Crossover?

    in Mid's and highs

    Posted

    The xover point depends on a few things. Wattage and the slope of the x-over being the most important. You could run them all the way to 3k if you were running them under rms with a slope like 18 or 24db/ octave. If you are running them with 100 watts the eminence xover should be fine at 12db/octave. I run selenium compression drivers down to 1k but I have them on half rms and active 24db/octave. These tweets are incredibly efficient 111 db and get stupid loud with a small amount of wattage. You will need a lot of cone area or some pro audio mids to keep up with them. Those bose won't begin to keep up. Too much difference in sensitivity.

    You could cross them at 8 or 10 k but you will need another tweeter that played up to around 16k and lacked a little of that shimmer that people like. That is why people use supertweeters in home audio and some car audio setups.

  20. Horns

    in Mid's and highs

    Posted · Edited by TheScottishBear

    Thanks a lot for the well thought out answer bro . You gave those of us who are thinking about horns a ton of info .

    When you hear a well tuned horn setup it will be hard to go back to a conventional 2 or 3 way. They are a pain in the ass to mount, expensive, and need eq but they are worth it. They were all the rage with the sq cats back in the nineties but it is hard to find any info on them now. What ID horns do you have? Is it just the lenses are did you buy them complete

  21. Horns

    in Mid's and highs

    Posted

    I have a pair of Image dynamics horns that I've had for 3 or 4 years but haven't installed yet . I was wondering if anyone had horns in their setup and if so what amp did they use?

    I use an mbquart onyx 4.60 "active" and have the horns crossed at 1000hz (24db) I think there is another person on the forum who uses them remember their name. When installing them you want them as far apart and as deep under the dash as they can go. They use the whole bottom of the dash as a giant waveguide. I used the full size ID horn bodies due to my center console. They also play a little lower than the minis. They do have some peaks as I mentioned in the video. You can get awawy with a 15 band eq or even a seven like me but a 1/3 octave will really help them shine.

    They have tremendous output on low power and most of the peaks are in the vocal range. The compression drivers I use (Selenium 2500ti) are 8 ohm so they only see 30 watts which is more than enough. I have the 10" in the doors on 240 watts and they match up pretty well. The wall is on 1500 watts as well It is pretty well rounded and I have no problem playing nickle creek or waka flocka. I am replacing the door speakers with a 12" selenium pro mid which has a higher 1w/1m. If you use a 6 or 8 " you will need a gaggle of wattage to keep up with the horns. Here are a couple x-over points to look at.

    Horns 1000hz (24db) -20k

    Midbass 80-1000 (24db)

    Subbass 80hz -20hz

    Follow thi tutorial. to make them really outstanding.

    So in this order

    - put one side out of phase vbglossarlink.gif Horn and midbass driver

    - listen and try reversing both horns polarity phase to lift sound stage vbglossarlink.gif

    - balance left

    - t/a left mid only until it lifts up as high as possible then mirror that setting to other side

    - then balance center

    - t/a left horn and mid together until it shifts center no more than .5 millisecond

    - EQ left and right separately as the lower midrange / upper mid bass area 160 to 400 hz range can really lower our stage height. If you dont have an RTA try these settings 125 - 3dB 160 -9dB 200 -6dB 250 -6dB 320 -3dB and see if it is better tonally and stage height wise.

    To smooth the top end adjust as follows 2000 -3dB 2500 -6 dB 3000 -6dB 4000 -3db

    Thanks to neal for this tutorial.

    Awesome Vid Sir ...

    Thanks bro. I have wanted to get a demo of your truck for a while.

  22. Quality EQ Time to upgrade give me some advice

    in Head Units-Processors and Eq's

    Posted

    I have a Linear Power PA2 AudioPath Enhancer for sale for 350.00 ...

    but you will need a crossover for your sub stage ... I know this is over your budget ... but TOTAL control of your system ...

    here is the link to specs ... http://www.linearpow...detail/pa2.html

    Looks nice but I can't justify spending that much on a speaker eq, especially when I only have a 2000 dollar system.

    I have a ~ $2000 system and I am saving for an ms-8. If it is important or you want it bad enough I say to hell with a budget. You just have to be patient. :P

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