Subwoofer possible to connect to stock stereo

Discussion in 'OT Technology' started by Spartus, Mar 12, 2005.

  1. Spartus

    Spartus New Member

    Joined:
    Jan 3, 2005
    Messages:
    19
    Likes Received:
    0
    Hello,

    Is it possible to connect a sub and an amp to a stock Bose audio system in a 2003 Nissan Altima. If so, what is needed and how can this be done?
     
  2. veonake

    veonake OnT poster, OT lurker

    Joined:
    Apr 11, 2004
    Messages:
    4,235
    Likes Received:
    0
    Location:
    NYC
    Sometimes, yes. If the amplifier has speaker-level inputs or a selector switch, you can tap off your rear speakers by using a splice, run some 14-16awg wire (assuming rear speakers) from there to your amp and attach RCA connectors to each end. Plug those into your amps input section and switch it to "high-level" or speaker level. Check your manual to make sure it supports this. It is also possible you don't need to add RCA connectors and can just run bare wire to the amp, but I haven't seen this before in car audio.
     
  3. bearsdidit

    bearsdidit OT Supporter

    Joined:
    May 8, 2004
    Messages:
    32,820
    Likes Received:
    38
    Location:
    Huntington Beach,CA
    Some amps have line level inputs.. I would recommend getting a line out converter. It converts high level signals (speaker leads) into RCAs (low level.)
     
  4. Spartus

    Spartus New Member

    Joined:
    Jan 3, 2005
    Messages:
    19
    Likes Received:
    0
    how is the sound generally, if subwoofer is connected through this method?
     
  5. bearsdidit

    bearsdidit OT Supporter

    Joined:
    May 8, 2004
    Messages:
    32,820
    Likes Received:
    38
    Location:
    Huntington Beach,CA
    for most people it will be fine.. the only problem is not having an independent sub control. for example, if you want more bass, you will have to turn up your radio, the stereo and speakers make distort too much before you get to an adequate sub level.
     
  6. P07r0457

    P07r0457 New Member

    Joined:
    Sep 20, 2004
    Messages:
    28,491
    Likes Received:
    0
    Location:
    Southern Oregon
    i would by some "bass stoppers" which are basically just capacitors that go in-line with your normal speakers to stop lower frequencies... That will help greatly with distortion, and the sub makes up for the bass.
     
  7. 1200mk

    1200mk Still same OG

    Joined:
    Aug 9, 2001
    Messages:
    16,889
    Likes Received:
    3
    just buy a head unit.
     
  8. 04

    04 Guest

    Many of the bass stoppers have such a low frequency cutoff point to where the reactance of the capacitor reacts with the reactance of the woofer, especially around it's resonance. This can actually make the bass louder than without a bass blocker. The slope on a bass blocker is also very shallow.

    If you want to put a passive high pass into the system, I'd really reccomend using a second order network (or at least designing a impedence compensation circuit in)
     
  9. P07r0457

    P07r0457 New Member

    Joined:
    Sep 20, 2004
    Messages:
    28,491
    Likes Received:
    0
    Location:
    Southern Oregon
    that's all way over my head :mamoru: All I know on that subject is we went to a audio-shop, told em what speakers we had, and what we wanted... they gave us these "bass-stoppers" which looked like a capacitor to put in-line with the speaker, and volia, no more distorted bass. They had different sizes and ratings... Are you saying they all suffer from this?
     
  10. 04

    04 Guest

    All single capacitor crossovers that have their crossover frequency near the speaker's resonance do. Depending on what value the capacitor was though, the effects can be minimized by using a higher frequency crossover point (which could be what happened in your case). But the problem with that is that you will loose a lot of midbass as well.
     
  11. Spartus

    Spartus New Member

    Joined:
    Jan 3, 2005
    Messages:
    19
    Likes Received:
    0
    the stereo is a bose. is it possible to just turn the bass down to get minmal distortion. Also, can't I just put the gain up on the amp to push the subs a bit more at lower moderate volumes?
     
  12. 04

    04 Guest

    That's what I would suggest doing. :)

    As for your question though above about sound quality by doing this method, it can be hit or miss. Some cars have level dependent equilizers (or normal non-defeatable equilizers) that can change the sound. Though, usually the system will still sound better IMO with an aftermarket subwoofer added on either way.
     
  13. dbman96

    dbman96 Active Member

    Joined:
    May 25, 2000
    Messages:
    49,996
    Likes Received:
    6
    Don't Bose car audio systems speak some sort of black magic voodoo electronic language? I think that's why they sound so much better than all the other stereos.












    :hsugh:
     
  14. veonake

    veonake OnT poster, OT lurker

    Joined:
    Apr 11, 2004
    Messages:
    4,235
    Likes Received:
    0
    Location:
    NYC
    Bose sounds so much better than all other stereos? :hsugh:
     
  15. dbman96

    dbman96 Active Member

    Joined:
    May 25, 2000
    Messages:
    49,996
    Likes Received:
    6
    Look at my av and tell me I'm someone who would actually believe that.

    :hsugh:
     
  16. idontgiveashit

    idontgiveashit I eat rice

    Joined:
    Aug 23, 2001
    Messages:
    694
    Likes Received:
    0
    Location:
    great ol' state of iowa
    if it was possible im sure he would have by now, i ran into the same problem with my infiniti its kind of like swapping out a deck in a taurus, the heater/ac controls are in the same bunch but mine also has a small compartment built in too. And the bose sounds better than most stockers ive heard, but...nothing to brag about...at all.....
     
  17. Spartus

    Spartus New Member

    Joined:
    Jan 3, 2005
    Messages:
    19
    Likes Received:
    0
    yeah, I want to keep the stock dash look and keep the 6 disc in dash player. A new headunit would be nice, especially an MP3 deck but it may not work with the Bose speakers and might be a pain the ass. The sound is decent for a stock stereo, lacking highs though!
     
  18. Spartus

    Spartus New Member

    Joined:
    Jan 3, 2005
    Messages:
    19
    Likes Received:
    0
  19. mojito

    mojito New Member

    Joined:
    Mar 8, 2003
    Messages:
    62,877
    Likes Received:
    0
    I did that for a while in my Xterra, but its a RF not a bose unit. It sounded pretty good, but I replaced all the speakers with JL Audio s and put in an amp and all new wiringa nd dynomat, but eventually gave in and got a new Head unit too. I dind't want to give up the IN Dash 6CD changer and the steering whell controls (I know can be added later but what a PITA)


    It does sound better with the new HU and better bass by far. Honestly I don't think the highs are as good, but its probably just the wasy the equalizer is set up. I gave in because I couldn't get rid of an engine whine from the HU.

    I put in a high to low converter behind the stock head unit and ran the RCA's to the amp. It worked, but didn't work as well as a new HU would.
     
  20. P07r0457

    P07r0457 New Member

    Joined:
    Sep 20, 2004
    Messages:
    28,491
    Likes Received:
    0
    Location:
    Southern Oregon
    Nissan uses both Rockford Fosgate and Bose brands in their vehicles, however neither are actually made by either company. Regardless of what name is silkscreened onto the head unit, they are made by the same company (rumor is that it's clarion). This goes for the speakers, too. For example, the same head unit found in the Frontier/Xterra (Rockford Fosgate) is the exact same unit found in the Pathfinder (Bose), minus the label.
     
  21. Ronin

    Ronin Guest

    It's a damned conspiracy, I vote to bring this infront of congress.
     
  22. mojito

    mojito New Member

    Joined:
    Mar 8, 2003
    Messages:
    62,877
    Likes Received:
    0
    You're right in some regards. Clarion and Nickmachi(SP?) make the head units and speakers for Nissans. RF did start putting in some stuff for the 03+ xterras and maybe other models.

    The BOSE verions are suppose to be a bitch to work with though. I didn't have to deal with that, but the "RF" or normal stock Nissan stuff is suppose to be a lot easier to work with
     
  23. pharcyde183

    pharcyde183 Nissan by nature

    Joined:
    Sep 16, 2002
    Messages:
    7,844
    Likes Received:
    0
    Location:
    ATL
    The bose in my maxima is the worst i've ever heard, but haven't had the time yet to put my stereo from my old maxima in
     

Share This Page