recomendations for rear speakers

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  • assoutE12
    Mod Crazy
    • Oct 2005
    • 694

    #1

    recomendations for rear speakers

    I just purchased a new stereo system for my 325i and I am looking for some advice on what I should do next.
    here is what I just got,

    Alpine CDA 9855 head unit
    Boston Pro 5 1/4 component set
    Alpine MRVT420 170x2 amp powering said components.
    JL (w-0 I think) 12in sub powered by a JL 200w amp.

    It sounds killer exept for a few things. first of all the rear speakers are fucked, they are some infinity componints so i figured they would be able to handle the power of the head unit, but I was wrong I pretty much have them faded all the way off.

    what do you guys think I should get for rear fill?
    I was thinking of getting some lower level bostons or some used Rally speakers. I think I am going to stick to just head unit power with whatever I do. what do u guys think of that?

    also I am having some trouble with the interior ratteling with the bass, what would you do about that?
    thanks for any help you can give me
  • marakka
    Euro Parts Pimp
    • Apr 2005
    • 2036

    #2
    It might be just the opposite.... components usually will sound better with more power. Even though the alpine is a solid head unit I would still recommend you run an amp to those rear components. Try switching things around...... like running the amp to the rear components and seeing how they sound by themselves. If they sound better on an amp than on a headunit you are in business.... run the 2 sets off the 2 channel.... as long as you don't mind giving up your fade feature.

    As for the rattling..... find the stuff thats rattling and fix it. thats all that can be said for that. Dynamat, roofing tar.... whatever works to make it stop rattling. I have cardboard behind my license plate to cut the noise down. Good luck.


    Comment

    • kencopperwheat
      King of Kegstands
      • Oct 2003
      • 14396

      #3
      Don't install rear speakers.
      Originally posted by Gruelius
      and i do not know what bugg brakes are.

      Comment

      • assoutE12
        Mod Crazy
        • Oct 2005
        • 694

        #4
        It might be just the opposite.... components usually will sound better with more power. Even though the alpine is a solid head unit I would still recommend you run an amp to those rear components. Try switching things around...... like running the amp to the rear components and seeing how they sound by themselves. If they sound better on an amp than on a headunit you are in business.... run the 2 sets off the 2 channel.... as long as you don't mind giving up your fade feature.

        As for the rattling..... find the stuff thats rattling and fix it. thats all that can be said for that. Dynamat, roofing tar.... whatever works to make it stop rattling. I have cardboard behind my license plate to cut the noise down. Good luck.
        its not that the rear speakers sound bad, they are blown or something.

        I know it would sound better with all the speakers amped, but I think it will sound ok if I have some desent rear speakers powered by the head unit. thats how I have my Toyota Tacoma set up, it has a set of alpine rallys in the front and a Boston 10in sub, both powered by a 400w 4 channel amp, with the stock rear speakers bowered by the head unit.
        I like the way that sounds so I figured I would do about the same thing, just with better stuff.
        don't you think it would sound ok with some quality speakers powered by the head unit?

        Comment

        • assoutE12
          Mod Crazy
          • Oct 2005
          • 694

          #5
          Don't install rear speakers.
          why do you say that? I know the rear speakers are not as improtant as the fronts, but I figured I should have something back there right?

          BTW I figured i'd tell you that i'm drinking a Rogue Moca Porter right now.:up:

          Comment

          • kencopperwheat
            King of Kegstands
            • Oct 2003
            • 14396

            #6
            Originally posted by assoutE12
            why do you say that? I know the rear speakers are not as improtant as the fronts, but I figured I should have something back there right?

            BTW I figured i'd tell you that i'm drinking a Rogue Moca Porter right now.:up:
            It will actually sound much better without rear speakers. They mess with the imaging of the fronts. Check out any sound quality competition vehicle and you'll never see one with rear speakers.


            You can get Rogue beers in KS? I thought we just had them here in Oregon. I've been to the brewery a couple of times. It's in a small coastal town. Pretty small opperation, which is why I'm surprised that you can get it in the mid-west. I had some of the Dead Guy Ale today :). Try the Shakespeare Stout... my fav.
            Originally posted by Gruelius
            and i do not know what bugg brakes are.

            Comment

            • nickmp0wer
              Banned
              • Jul 2004
              • 1427

              #7
              so your saying a sub and front speaks will sound betten then front and back and a sub?

              Comment

              • assoutE12
                Mod Crazy
                • Oct 2005
                • 694

                #8
                I pretty much have no rear speakers right now (faded all the way to the front) and i don't think it sounds as good as my truck.
                granted, I have been fine tuning that system for 4 years. and the one in my e30 is brand new, and I haven't screwed with it much.
                I'm thinking the big difference is the lack of rear speakers.
                everything else is pretty much a better version of what I have in my truck.

                and yes we can get Rogue in kansas, at least in Lawrence.
                Shakespeare Stout is one of my favorate beers.
                we can get 6-packs of Moca Porter, dead guy, and some wheat beer.
                and bombers of Shakespere stout, chocolate stout, and Hazlenut brown nectar and a couple others.:drink:

                Comment

                • kencopperwheat
                  King of Kegstands
                  • Oct 2003
                  • 14396

                  #9
                  Originally posted by nickmp0wer
                  so your saying a sub and front speaks will sound betten then front and back and a sub?
                  yes
                  Originally posted by Gruelius
                  and i do not know what bugg brakes are.

                  Comment

                  • E30 Wagen

                    #10
                    Has anybody ever put in a 5.1 dolby system in their e30? I know you can buy amps/filters/whatever they're called for that, and you could then keep your rear speakers for extra effect with the front ones still as the main left and right channels. I have 5.1 in my room, and i love the sound quality, even with crappy RCA speakers.

                    Comment

                    • 808BMW
                      R3VLimited
                      • Oct 2003
                      • 2910

                      #11
                      Some people's perception of sound is different.

                      If you like to close your eyes and pick out where each band member is standing in front of you, then you shouldn't be running rear speakers.

                      If you like to put in earplugs and stand 300 feet away and sing along with your car, then you want rear speakers (well, lots of speakers, with lots of power).

                      Some want accurate reproduction of music, some want musical volume.


                      So my question is: what makes your truck sound better? The volume just doesn't go enough? Aren't your boston pro's 4ohm? even at 110x2 RMS, they should be pretty nice by themselves.
                      You could try running both sets of speakers off the amp, but I think you'll end up hating it.

                      As for rattles: pinpoint where each and every noise is coming from, and keep that piece in place. Tape/glue/screw it down, stuff things behind it to stop movement (weatherstripping tape, carpet foam, expanding filler).

                      Or add more power and park next to beater cars. Make their car rattle more than yours and people wont notice your car.

                      Comment

                      • nickmp0wer
                        Banned
                        • Jul 2004
                        • 1427

                        #12
                        well doesnt it sound like all the sound is comming from infront of you?

                        i just got some mb quart QM 160 to go with my qm 130 but maybe i can just put the 6" ones up front with a little bit of a bulge in the trim piece? also then should i make it so both the front and rear outputs are powering the fronts?

                        or maybe just install front and rears and adjust the fade to where i like it?

                        Comment

                        • assoutE12
                          Mod Crazy
                          • Oct 2005
                          • 694

                          #13
                          So my question is: what makes your truck sound better? The volume just doesn't go enough? Aren't your boston pro's 4ohm? even at 110x2 RMS, they should be pretty nice by themselves.
                          You could try running both sets of speakers off the amp, but I think you'll end up hating it.
                          I'm not looking for max volume, more quality of music.

                          I've been thinking alot about it and I think some of it has to do with the fact that the rear speakers in my tacoma are a little bigger than the ones in my e30, so they pick up alot more of the mid-bass. plus its a pretty small space.
                          also I have a Boston 10 in my truck and it hitts super fast compared to the JL, also it is sitting right behind you as opposed to in the trunk.

                          I think it might have something to do with where the front speakers also. the ones in my e30 are in the stock kick pannel spot. and the ones in my truck are in the bottom left of the doors. would this make any sense?

                          one if the things I don't like is that the sub doesn't pick up alot of the bass that isn't super low and loud. but I might not be able to hear it bc its in the trunk.

                          Its not that I'm not happy with my pro's they sound great, the system in my truck just seems to give me goose bumps better.

                          Comment

                          • assoutE12
                            Mod Crazy
                            • Oct 2005
                            • 694

                            #14
                            I don't want to amp the front and rears, because I don't want to take power away from my badass speakers to power leser speakers in the rear. plus I like having my shit faded a little o the front, so I wouldn't want to lose the fader feature.
                            I would rather just get some speakers in the back that don't sound that bad and use the headunit to power them.

                            Comment

                            • peteM3power
                              E30 Addict
                              • Nov 2003
                              • 450

                              #15
                              Originally posted by assoutE12
                              I don't want to amp the front and rears, because I don't want to take power away from my badass speakers to power leser speakers in the rear. plus I like having my shit faded a little o the front, so I wouldn't want to lose the fader feature.
                              I would rather just get some speakers in the back that don't sound that bad and use the headunit to power them.
                              In that case, if you aren't going to amp them, you should be fine with some coaxials instead of splits. While boston splits sound quite nice (I run them too), I understand that with the minimal RMS output of the H/U, you won't be able to sense any noticeable difference at all anyway and therefore may as well just buy some coaxials for the rear fill.

                              Pete

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