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Thread: help me build a nice sound system for 95 740i

  1. #1
    Join Date
    Sep 2007
    Location
    toronto
    Posts
    259
    My Cars
    95 740i

    help me build a nice sound system for 95 740i

    My car does not have DSP. It came with tape deck, Rear Cd changer and 4 speakers (2 on each door)

    My plan is to get a OEM BMW In dash CD player to replace my Tape deck. I wont be using my Cd changer so it will be removed.

    I want to add 2 amps. One to run all door speakers and one to run 2 12" subs.

    As for door speakers goes I will be getting 2 sets of Alpine Component speakers.

    My main problem is how to use existing wires so I dont have to re-wire the car.

    All amplifiers require an input which I dont have. How do I send the CD player signal to the amp? I doubt the OEM amp is using RCA wires.
    ________________________________________



    1995 BMW 740i
    Mods: Zimmermann XD Rotors & Ceramic Pads. Depo Clear Tails, Chinese Crap Xenon Headlights 8000K, 19" Beyern Multi Wheels, Depo Smoked Corner lights, Black Grill, LED Super White (Bluish) Interior light.
    _________________________________________

  2. #2
    Join Date
    May 2006
    Location
    Bombingham, AL
    Posts
    2,761
    My Cars
    AudioSnob
    Forget the rear speakers ....spend that $$$ on better front speakers ....Alpine does NOT make 'great' speakers ....unless you are more interested in SPL than SQ. If SPL is your main goal disregard my previous statement and stick speakers anywhere they will fit.

    >^..^<
    If money is the root of all evil ...why do churches beg for it?


    there / they're / their ...then / than ...two / too / to ...bass / base ...bare / bear ...brake / break ...you're / your ...do / due / dew ...patients / patience ...wait / weight ...affect / effect ...know / no ...sell / sale / sail / cell ...whole / hole ...reign / rain ...moot / mute ...its / it's ...pore / pour / poor ...buy / bye / by / bi ...lose / loose ...here / hear ...bore / boar / boor ...waist / waste ...were / we're ...and / an ...mourning / morning ...shelve / shelf ...well / we'll / will ...one / won / Juan ...who's / whose ...through / threw ...for / fore / 4 / four ...bored / board ...steel / steal / still ...scene / seen ....road / rode ...sight / site / cite ...mat / matte ...ascent / ascend ...tear / tare ...throw / throw ...vice / vise ...meat / meet / mete ...learn the difference


    An armed man is a citizen ...an unarmed man is a subject.

  3. #3
    Join Date
    Sep 2007
    Location
    toronto
    Posts
    259
    My Cars
    95 740i
    I can always choose another brand of speakers, that is not my concern.

    My main concern is how to use the existing wiring to hook up 2 aftermarket amps
    ________________________________________



    1995 BMW 740i
    Mods: Zimmermann XD Rotors & Ceramic Pads. Depo Clear Tails, Chinese Crap Xenon Headlights 8000K, 19" Beyern Multi Wheels, Depo Smoked Corner lights, Black Grill, LED Super White (Bluish) Interior light.
    _________________________________________

  4. #4
    Join Date
    May 2006
    Location
    Bombingham, AL
    Posts
    2,761
    My Cars
    AudioSnob
    I guess you can use 2 line out converters ...one from the front speaker wires and one from the rear. Someone can probably help with this more than I ...this is nothing that I'd ever do ...I'm an audiophile and OEM HU's are strictly taboo. SQ at all costs is my motto.

    >^..^<
    If money is the root of all evil ...why do churches beg for it?


    there / they're / their ...then / than ...two / too / to ...bass / base ...bare / bear ...brake / break ...you're / your ...do / due / dew ...patients / patience ...wait / weight ...affect / effect ...know / no ...sell / sale / sail / cell ...whole / hole ...reign / rain ...moot / mute ...its / it's ...pore / pour / poor ...buy / bye / by / bi ...lose / loose ...here / hear ...bore / boar / boor ...waist / waste ...were / we're ...and / an ...mourning / morning ...shelve / shelf ...well / we'll / will ...one / won / Juan ...who's / whose ...through / threw ...for / fore / 4 / four ...bored / board ...steel / steal / still ...scene / seen ....road / rode ...sight / site / cite ...mat / matte ...ascent / ascend ...tear / tare ...throw / throw ...vice / vise ...meat / meet / mete ...learn the difference


    An armed man is a citizen ...an unarmed man is a subject.

  5. #5
    Join Date
    Sep 2007
    Location
    toronto
    Posts
    259
    My Cars
    95 740i
    Getting line out from speakers causes low quality sound. I was hoping to find a better way.
    ________________________________________



    1995 BMW 740i
    Mods: Zimmermann XD Rotors & Ceramic Pads. Depo Clear Tails, Chinese Crap Xenon Headlights 8000K, 19" Beyern Multi Wheels, Depo Smoked Corner lights, Black Grill, LED Super White (Bluish) Interior light.
    _________________________________________

  6. #6
    Join Date
    Jul 2005
    Location
    Atlanta, GA USA
    Posts
    586
    My Cars
    BMW LOVER PERIOD
    The system your planning isn't to difficult. Your car should have had from the factory 2 way front 5.25" comp set and rear door 5.25's and 5.25's use for woofers in the rear deck. If you haven't purchased any equipment yet here is the easy way to do things.

    Peripheral SVEN4 high-end line out put converter connected to your Bmw cd player.
    4ch amp & 2ch amp or 5ch amp with sub level control.
    Using your stock speaker wires isn't a huge issues if you stay low power 35-50 watts per ch amps. If you want better performance larger speaker wires will help but running new wires into those doors is a bit difficult. As far as subs go I recommend you open up the metal in the ski hole area if it's not already open to allow more bass to get into the cabin with you. That car isn't very hard to work on if you plan the system out before the install takes place.
    Jeff Smith
    Autosound Specialist
    Atlanta,GA

  7. #7
    Join Date
    Sep 2007
    Location
    Chicago, IL.
    Posts
    5,983
    My Cars
    2001 330xi, E92
    If you want an OEM head unit that will be plug and play in your car this is the one you want:

    http://www.12velectronics.com/servle...CD-CD43/Detail

    This will fit properly, and match your interior perfectly. The only problem is it will not control your 1995's CD changer. This is not necessarily a bad thing because there are many different options for ipod interfaces and auxillary audio input devices that will can take place of your changer.

    For front speakers, I would highly recommend this component set:

    http://www.12velectronics.com/servle...ologies/Detail

    These may be a bit more expensive than what you have been looking at, but definitely worth the price. For more information on these speakers, check out this thread:
    http://forums.bimmerforums.com/forum....php?t=1004428

    Like, Catman says, you would be better off spending the money on the front speakers rather than the rear. If you want to have some rear fill, we have a great deal on some inexpensive 5.25" components you can use in the rear. Depending on your preference for your rear fill, you could just use the midrange out of this set and it would give you some nice fill, or you could add the tweeter if needed. Here is the one I suggest:
    http://www.12velectronics.com/servle...dsh-WAY/Detail

    If you wanted to stick with all Hybrid brand speakers, you could put this ultra wide- bandwith midrange set in the rear:
    http://www.12velectronics.com/servle...ologies/Detail

    As far as your amplifier connections go, this is a simple connection in your trunk. The CD43 radio I recommended has a balanced differential input to your factory amplifier. If you use an amplifier that accepts these inputs, you can connect them directly to your amp. If not, you can use a high quality line output converter and the sound quality will be very good.

    Please let me know if you are interested in any of these suggestions. We also have a free shipping sale for forum members that actually ends today, but If you are at all interested, please let me know by tomorrow and I will see what I can do.

  8. #8
    Join Date
    Sep 2007
    Location
    toronto
    Posts
    259
    My Cars
    95 740i
    Thank you 12v for the suggestions. However, before I decide on the brands I want to figure out a plan on hooking things up then buy the goods.
    ________________________________________



    1995 BMW 740i
    Mods: Zimmermann XD Rotors & Ceramic Pads. Depo Clear Tails, Chinese Crap Xenon Headlights 8000K, 19" Beyern Multi Wheels, Depo Smoked Corner lights, Black Grill, LED Super White (Bluish) Interior light.
    _________________________________________

  9. #9
    Join Date
    Sep 2007
    Location
    toronto
    Posts
    259
    My Cars
    95 740i
    Quote Originally Posted by AudioDesignsATL View Post
    Peripheral SVEN4 high-end line out put converter connected to your Bmw cd player.
    4ch amp & 2ch amp or 5ch amp with sub level control.
    Using your stock speaker wires isn't a huge issues if you stay low power 35-50 watts per ch amps. .

    Thanks for the reply. I went to Peripheral website and looked up the SVEN4 specs. The manual only shows how to use this to connect the OEM amp to aftermarket Head unit.

    My plan is to use an OEM head unit and connect it to an aftermarket amp.
    ________________________________________



    1995 BMW 740i
    Mods: Zimmermann XD Rotors & Ceramic Pads. Depo Clear Tails, Chinese Crap Xenon Headlights 8000K, 19" Beyern Multi Wheels, Depo Smoked Corner lights, Black Grill, LED Super White (Bluish) Interior light.
    _________________________________________

  10. #10
    Join Date
    Sep 2007
    Location
    Chicago, IL.
    Posts
    5,983
    My Cars
    2001 330xi, E92
    You could also choose an amplifier that accepts high level inputs. You would get the signal wires from the head unit output wires that are available in your trunk at the factory amplifier. Your remote turn on wire and speaker wires are also at this location, so you will not have to run any wires through your car.

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