Closed Thread
Results 1 to 13 of 13

Reload Thread: BMW 318ti false floor sub project!!!

  1. #1
    Rochey6957's Avatar
    Rochey6957 is offline Junior Member



    Join Date
    Sep 2011
    Location
    Scranton, pa
    Posts
    15
    Post Thanks / Like
    Mentioned
    0 Post(s)

    BMW 318ti false floor sub project!!!

    Hey all this is my first thread and first major audio project. I drive a 1998 BMW 318ti. I have a pioneer headunit and cd changer. The headunit is keh-p4020 and the cd changer is cdx p670.

    My plan is to hide the amplifier with a false floor in the trunk and mount the speakers in this new false floor. I will create an appropriate sized enclosure for the speakers though. It will be incorporated into the false floor. My only concern with this is how to I protect the speakers from being damaged? I still want to be able to use the trunk. I was thinking of covering the speaker areas with plexiglas but would that dampen the sound? Maybe a thin metal grill would work?

    I recently purchased a jbl grand touring 601.1 amplifier. I have a general understanding of of how to instal an amplifier in my car but I have some more specific questions. My questions are regarding my cd changer.

    If I run my power cable for the amp along the passenger side of the car I would be running it along side the wires for my cd changer. Would this cause humming or noise when running the cd player? Also would I ground the amplifier to the same location as the cd changer to avoid ground loop?

    What are some speaker recommendations you guys think would work well with my amp? I don't know wether to go with one or two subs? Or ten or 12 inches? Any suggestions are appreciated

    Thanks,







  2. #2
    Rochey6957's Avatar
    Rochey6957 is offline Junior Member

    Threadstarter


    Join Date
    Sep 2011
    Location
    Scranton, pa
    Posts
    15
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: BMW 318ti false floor sub project!!!

    I talked to a crutchfield expert today and was very pleased he cleared a few things up for me. he said to ground the amp on the same bolt as the CD changer. Im also leaning to a two sub set up with two Dual Voice Coil wired in parallel. this would create a two ohm load which is great for my amp. I just need to find some 300 watt RMS DVC subs now




  3. #3
    keep_hope_alive's Avatar
    keep_hope_alive is offline Acoustics Engineer keep_hope_alive is a Supporting Member of the forum!



    Join Date
    May 2007
    Location
    Quad Cities, IL
    Posts
    5,807
    Post Thanks / Like
    Images
    28
    Mentioned
    155 Post(s)

    Re: BMW 318ti false floor sub project!!!

    use sub grills with them on the floor. plexi would block sound.



    have you been helped by me? i'd love to know. shoot me a PM.

    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html]
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html
    *1998 Astro Van Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/567468-kha-does-spl-build-1996-astro-van.html

  4. #4
    subzero's Avatar
    subzero is offline CarAudio.com Veteran



    Join Date
    Sep 2008
    Location
    Phoenix, AZ
    Age
    37
    Posts
    6,348
    Post Thanks / Like
    Images
    30
    Mentioned
    20 Post(s)

    Re: BMW 318ti false floor sub project!!!

    Quote Originally Posted by Rochey6957 View Post
    Hey all this is my first thread and first major audio project. I drive a 1998 BMW 318ti. I have a pioneer headunit and cd changer. The headunit is keh-p4020 and the cd changer is cdx p670.

    My plan is to hide the amplifier with a false floor in the trunk and mount the speakers in this new false floor. I will create an appropriate sized enclosure for the speakers though. It will be incorporated into the false floor. My only concern with this is how to I protect the speakers from being damaged? I still want to be able to use the trunk. I was thinking of covering the speaker areas with plexiglas but would that dampen the sound? Maybe a thin metal grill would work?

    I recently purchased a jbl grand touring 601.1 amplifier. I have a general understanding of of how to instal an amplifier in my car but I have some more specific questions. My questions are regarding my cd changer.

    If I run my power cable for the amp along the passenger side of the car I would be running it along side the wires for my cd changer. Would this cause humming or noise when running the cd player? Also would I ground the amplifier to the same location as the cd changer to avoid ground loop?

    What are some speaker recommendations you guys think would work well with my amp? I don't know wether to go with one or two subs? Or ten or 12 inches? Any suggestions are appreciated

    Thanks,
    power, ground, remote turn on, I usually put on the opposite side.
    drivers side = power, grounds, remote.
    Passenger side = RCA and other signal interconnects.

    once you find out what subs you want to run, you can figure out what kind of speaker grill is appropriete for those subs. you might have to under mount them and then use a standard mesh wire grill from the swapmart or something. So you have excrussion clearence.

    I would also suggest another location. the rear corners would be a better choice, rather then giving up a spare tire. and the changers usuallt hang on the underside of the rear deck or in the glove box.




  5. #5
    Rochey6957's Avatar
    Rochey6957 is offline Junior Member

    Threadstarter


    Join Date
    Sep 2011
    Location
    Scranton, pa
    Posts
    15
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: BMW 318ti false floor sub project!!!

    My cd changer is mounted on the side in the trunk but I'm going to design the false floor so I don't give up my spare tire.




  6. #6
    Rochey6957's Avatar
    Rochey6957 is offline Junior Member

    Threadstarter


    Join Date
    Sep 2011
    Location
    Scranton, pa
    Posts
    15
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: BMW 318ti false floor sub project!!!

    Just did a little shopping around and found these two guys which do you think is better?

    The pyle seems a little lower end to me?
    Amazon.com: Pyle PLBW84 Blue Wave 8" 600W High-powered Subwoofer: Electronics

    Id end up underpoweing this legacy put thats better then overpowering.
    Amazon.com: Legacy LW12590 12-Inch 2000 Watt DVC Legacy Red Series Subwoofer: Electronics

    Legacy LW12590 12" 2000W DVC Legacy Red Subwoofer | eBay

    Which do you think is better quality? Are either of them good quality?




  7. #7
    keep_hope_alive's Avatar
    keep_hope_alive is offline Acoustics Engineer keep_hope_alive is a Supporting Member of the forum!



    Join Date
    May 2007
    Location
    Quad Cities, IL
    Posts
    5,807
    Post Thanks / Like
    Images
    28
    Mentioned
    155 Post(s)

    Re: BMW 318ti false floor sub project!!!

    none of them are worth the money. if you're on a budget, look at Dayton Audio at Parts Express. decent quality stuff. or look at our classifieds section.

    i've done several builds with false floors. here are some i documented for ideas:
    http://forum.sounddomain.com/ubbthre.../3#Post1369669

    http://forum.sounddomain.com/ubbthre.../3#Post1400581

    http://forum.sounddomain.com/ubbthre.../3#Post1755977



    have you been helped by me? i'd love to know. shoot me a PM.

    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html]
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html
    *1998 Astro Van Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/567468-kha-does-spl-build-1996-astro-van.html

  8. #8
    dumple's Avatar
    dumple is offline What's in your trunk?



    Join Date
    Sep 2006
    Location
    Philly
    Age
    25
    Posts
    8,461
    Post Thanks / Like
    Mentioned
    2 Post(s)

    Re: BMW 318ti false floor sub project!!!

    love false floors, do it like mine lol



    Jbl ms8
    Pioneer appradio3
    Phd Studio neo 6.5s
    Polk db tweeters
    Cdt m6+
    Stereo integrity Magnum Claw v1
    cream jean of sound 8======D~
    refs: Lil_KB, jesusbasscadill, Crzy, Wkbdkid, bigwheel15, groggy23, kenbei, Belunt (awesomebox), Nissan, shallowfu, jonnybusa, alxmlr789, pioneerpimp, peas247, ravens9322, sundownz, audiobahnuser18, [email]nbesaw2@new.rr, jared530, brenTgrillzem, Revrider1

  9. #9
    Rochey6957's Avatar
    Rochey6957 is offline Junior Member

    Threadstarter


    Join Date
    Sep 2011
    Location
    Scranton, pa
    Posts
    15
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: BMW 318ti false floor sub project!!!

    My cousin dropped one of the subs off for me too look at and this monster is huge!!! It's a fenix audio arts subwoofer. It's DVC 2x4 ohm so 2 Ohms wired in parallel. It says 1200 watts on the label but no rms value. It's model fnx-w1206. Idk if you guys have heard of it or not but I figured I'd post nd then do a little looking around.
    Thanks




  10. #10
    Rochey6957's Avatar
    Rochey6957 is offline Junior Member

    Threadstarter


    Join Date
    Sep 2011
    Location
    Scranton, pa
    Posts
    15
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: BMW 318ti false floor sub project!!!

    Is an ebay wiring kit like this
    something that would be good to use?

    Or can you get the same things from like advance auto for cheaper? better quality?

    Also what is the safest way to clean out the inside of my amp? it has all kinds of dust on the inside of it compressed air? vacuum it?
    The gold screws for all the connectors including power and speaker cables are almost corroded? they just look really ******. Is there anyway to clean them or should I find new ones?
    The Plexiglas cover on it is scratched to all hell any way to find replacements for JBL or should I just make a new cover? Its only a rectangle so it wouldn't be hard to make.

    thanks




  11. #11
    dumple's Avatar
    dumple is offline What's in your trunk?



    Join Date
    Sep 2006
    Location
    Philly
    Age
    25
    Posts
    8,461
    Post Thanks / Like
    Mentioned
    2 Post(s)

    Re: BMW 318ti false floor sub project!!!

    Low pressure air is.fine and just buy knukonceptz wire



    Jbl ms8
    Pioneer appradio3
    Phd Studio neo 6.5s
    Polk db tweeters
    Cdt m6+
    Stereo integrity Magnum Claw v1
    cream jean of sound 8======D~
    refs: Lil_KB, jesusbasscadill, Crzy, Wkbdkid, bigwheel15, groggy23, kenbei, Belunt (awesomebox), Nissan, shallowfu, jonnybusa, alxmlr789, pioneerpimp, peas247, ravens9322, sundownz, audiobahnuser18, [email]nbesaw2@new.rr, jared530, brenTgrillzem, Revrider1

  12. #12
    shellback's Avatar
    shellback is offline Junior Member



    Join Date
    Jan 2012
    Location
    TX
    Posts
    27
    Post Thanks / Like
    Mentioned
    19 Post(s)

    Re: BMW 318ti false floor sub project!!!

    I'm really curious how the false floor worked out on the BMW compact.




  13. #13
    1alpineguy's Avatar
    1alpineguy is offline Junior Member



    Join Date
    Apr 2012
    Location
    las vegas
    Posts
    2
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: BMW 318ti false floor sub project!!!

    hey guys! i need help on how to build a false floor? i have a 99 eclipse! im trying to take out the back seat and put a false floor, for my 10" swx sub. so i can still use my trunk. because the back seat is useless.




Closed Thread

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may post attachments
  • You may edit your posts

1e2 Forum