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lithium last won the day on August 28

lithium had the most liked content!

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About lithium

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    01 buick century

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  1. lithium

    Advice needed

    can you like the exact enclosure you purchased? Unfortunately, subwoofers don't work well in just any enclosure and these prefab enclosure tend to make a ton of compromises to deliver a product at the lowest price. If you have to go prefab I'd recommend sealed enclosures.
  2. lithium

    Advice needed

    you would wire them like below. Your amp has 2 sets of input terminals but its just a 1 channel (mono) amp. So those terminals on the amp would be in parallel. I would just wire as shown below.
  3. lithium

    Buick Century - active 3way + sub w/ nexus 7

    ya. In the parking lot or on my balcony. Planning to rent a house next year if things go well at work.
  4. lithium

    Buick Century - active 3way + sub w/ nexus 7

    Started the door enclosures Saturday. I rolled the windows down and spaced out about 1/4 inch with some scrap materials prior to tapping. I also used some foil and petroleum jelly to get a easy release from the tape (not pictured). Also not pictured is an application of 1/8in closed cell foam (adhesive backed) applied to the door skin. Hopefully that will be enough to isolate the enclosure from the door. I did about 3 layers of fg before letting this cure overnight. I ran out of the good resin from USComposites and tried some cheap stuff from Ebay. Seems to be working ok but there are definitely some spots that need fixed before I start adding more layers (the horizontal portions under the arm rests were particularly difficult). Working on a vertical surface was tricky. I'll get the dremel out and fix some air pockets and hopefully it will come out fine.
  5. lithium

    Buick Century - active 3way + sub w/ nexus 7

    Thanks guys. The left pod would definitely be problematic in a sportier vehicle but not a Buick that drives <10 mins through some corn fields to work.
  6. lithium

    Buick Century - active 3way + sub w/ nexus 7

    The purpose of the dashmat is to absorb sound. The material properties, dimensions, and placement determine performance. It works exactly like throwing carpet on a wood floor to reduce echo.
  7. lithium

    Buick Century - active 3way + sub w/ nexus 7

    I didn't really do a good A to B comparison when I installed it so I can't say I hear any difference. I'll try to do a comparison in the future and maybe take some measurements (I have access to professional equipment at work that I could borrow for day). Theoretically I think the foam backing is too thin to do a whole lot. I like the look though!
  8. lithium

    Buick Century - active 3way + sub w/ nexus 7

    A pillars are finished. Haven't played with the tune yet as I'm trying to move on to the midbass enclosure now. Before (w/ door trim cut) after (trying to maximize enclosure volume) Deadened whats left of the trim panel.
  9. lithium

    Buick Century - active 3way + sub w/ nexus 7

    I just need to find a way to bolt these the A pillars so they dont kill me in a car crash. I hope to install them this week and start on the door enclosures soon after that.
  10. lithium

    Buick Century - active 3way + sub w/ nexus 7

    Been a while guys. I've made some progress despite the difficulties of working on things in my apartment. I think I got carried away with the size of these enclosures. These are my baffles, the ring is 3d printed petg. The white speaker mount is also 3d printed and will allow me to swap in other drivers easily. Starting the enclosures. Pretty standard stuff. I decide to build enclosure that sit on the dash rather then build off the A pillar. In retrospec I think it might have been better to put the 4 on the pillar and tweeter in the sail panel to cut down the size of these monsters. Next I aimed the speaker baffles the left side has to come out towards the driver quite a bit. I hope this doesn't kill imaging too badly. The pods where difficult to wrap, even with this spandex material I used. My solution to the creases in the fabric. After the first coat of resin on the spandex Test fit ya these look toooo big... Had to flock the enclosures in my kitchen... not the best idea
  11. sound quality mostly corresponds to the frequency response of the total system. Model the subwoofers in an enclosure that isn't particulaly peaky and use EQ to correct in situ. Make sure the midbass drivers can meet up the subwoofers (front stage is more important then subwoofers in SQ installs).
  12. lithium

    Need tuning opinions

    did you build a solid baffle (speaker mounting ring)?
  13. lithium

    Fi Ssd 10 inch sub in 2 cubic foot box?

    is the 2cuft the gross or net after displacement. sundown recommends 1.5 cu ft for that subwoofer. I think you need to verify that the current setup is installed correctly before throwing money around. building new boxes to experiment with response would be a good idea.
  14. lithium

    Need tuning opinions

    Generally you would want to try a few location and aiming directions before permanently mounting the tweeters. If you have limited mounting options or fabrication ability some of those options might not work out but its best to try. Try something like blue tack to temporarily mount the tweeters while you play around. I haven't played with these drivers in a vehicle yet so idk where to start with Xovers, I expect Aaron will chime in when he sees this thread.
  15. lithium

    Help with sundown subwoofer

    download winisd and model the two subwoofers in their optimal enclosure.