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    #1

    dual 8's in the E30?

    has anyone done 8 inch subs in the trunk? I want to have good bass and clean sound, but having my 12 in there how it is now won't allow access to my spare tire, and there is almost no usable trunk space. I was planning either 2 8's or a 10, I would prefer to use the 2 8's as the boxes could be made more shallow for them, allowing more trunk area to be open. I plan to use infinity kappa 6x9's in the rear deck with custom sealed enclosures for midrange and midbass, but I need something to fill the low end of the range. also, if anyone has any tips for doing 6x9's, let me know. Thanks!

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    #2
    hey if you go with 2 8's in the trunk let me know how it works. i have been thinkin of gettin a pair of 8in's for awhile but havent found a good deal on any yet.

    Comment

      #3
      Custom sub enclosure

      You guys may want to search for a thread by stereoinstaller aka Luke. He is building custom boxes that are made to work with our cars that will use the rear speaker shelf for port tubes from the box using a single 12" sub. I will post pics when I get mine installed which should ship tomorrow.

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        #4
        hmm... interesting. I still want to know if anyone has gone the dual-8" route, and if so, how it turned out compared to a decent 12 or 10. thanks for the info though, I'll have to look into that

        Comment

          #5
          Hey there Colonel...are you planning on firing the woofers through the rear seat or into the trunk? If you fire into the trunk, you won't have much output. If you fire into the seat, you will have to cut holes (oh NOEZ!) or something to get the sound in. Either way, that is one of the main reasons I use a single woofer in most of my installs in E30s.

          Personally, I love the sound of 4 8's. E30s are tough to get truly impressive sound in.

          Oh, and I do have 3 excellent Fosgate DVC 8's...back when they were still American made, not the chinese shit they sell today...very clean nice condition. I can get pics if you might be interested. Top fucking dollar, though, these are irreplaceable.

          Luke

          Closing SOON!
          "LAST CHANCE FOR G.A.S." DEAL IS ON NOW

          Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398

          Thanks for 10 years of fun!

          Comment

            #6
            Originally posted by StereoInstaller1 View Post
            Hey there Colonel...are you planning on firing the woofers through the rear seat or into the trunk? If you fire into the trunk, you won't have much output. If you fire into the seat, you will have to cut holes (oh NOEZ!) or something to get the sound in. Either way, that is one of the main reasons I use a single woofer in most of my installs in E30s.

            Personally, I love the sound of 4 8's. E30s are tough to get truly impressive sound in.

            Oh, and I do have 3 excellent Fosgate DVC 8's...back when they were still American made, not the chinese shit they sell today...very clean nice condition. I can get pics if you might be interested. Top fucking dollar, though, these are irreplaceable.

            Luke

            I agree with you, if you want to go with 8s, you might want to get more than 2 for the e30. I have one 8 in my e28(under the rear seat) and it does put out alot of bass(JBL GTX8) but the seat does muffle the sound alot. E30s having a foam seat would muffle it even more. Try using 3-4 high end 8s and you will have a very nice system. My old e30 had 4 Infinity beta subs in it and they were great! I have since sold the beta 8s but still have my beta 6s(2) beta 4s(4) and emit tweeters(2). Also might I suggest using these subwoofers.....
            They are OEM bose subwoofers from chevy suburbans(console mount). 6.5 inches, DVC, they are the same woofers that come in the Acustamass system by bose. I have 8 of them waiting to go into my convertible. You can get them at any junk yard for about 25bucks a piece.
            Tri color fabric for sale here!
            http://www.r3vlimited.com/board/showthread.php?t=105922

            Comment

              #7
              Beta 8's? Rich Coes' baby there...I wish the Beta line had taken off. Wonderful stuff!

              I dunno about spending $200 on 8 6.5" woofers. Should be nice and quick though.

              Closing SOON!
              "LAST CHANCE FOR G.A.S." DEAL IS ON NOW

              Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398

              Thanks for 10 years of fun!

              Comment

                #8
                Originally posted by StereoInstaller1 View Post
                Beta 8's? Rich Coes' baby there...I wish the Beta line had taken off. Wonderful stuff!

                I dunno about spending $200 on 8 6.5" woofers. Should be nice and quick though.
                I used to work at a junk yard so I got them all for free. The beta speakers were great, wish I never sold the beta 8s.
                Tri color fabric for sale here!
                http://www.r3vlimited.com/board/showthread.php?t=105922

                Comment

                  #9
                  Two 8s can be made to sound great, and in some cases better than a single 10. Quality setup / install is the key here. Luke knows what he is talking about. I would even go as far as maybe mount a single or both 8s upfront in the passenger area, just depends on how far you are willing to take it.

                  CDT Audio, Diamond, Focal, Helix, Image Dynamics, JL Audio, MB Quart, RE Audio, Fosgate, MTX to name a few all make 8" woofers.

                  bose is garbage.
                  Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



                  OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827

                  Comment

                    #10
                    True bose is garbage, but I can fit those speakers in alot of places in the car.
                    Tri color fabric for sale here!
                    http://www.r3vlimited.com/board/showthread.php?t=105922

                    Comment

                      #11
                      Are those the "Bose O" series?


                      get it...Bozo? Har-dee-freaking-har.

                      Hey Colonel, you never said if your car is sedan or coupe...you could build boxes in the rear sides for a pair of 8's.

                      Closing SOON!
                      "LAST CHANCE FOR G.A.S." DEAL IS ON NOW

                      Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398

                      Thanks for 10 years of fun!

                      Comment

                        #12
                        Originally posted by StereoInstaller1 View Post
                        Are those the "Bose O" series?


                        get it...Bozo? Har-dee-freaking-har.

                        Hey Colonel, you never said if your car is sedan or coupe...you could build boxes in the rear sides for a pair of 8's.

                        That is a good point. 2 door cars are easy to put 8s in the rear panels.
                        Tri color fabric for sale here!
                        http://www.r3vlimited.com/board/showthread.php?t=105922

                        Comment

                          #13
                          Originally posted by Erik j View Post
                          That is a good point. 2 door cars are easy to put 8s in the rear panels.
                          I don't know if "easy" is a term I would use, but yeah, they can fit...

                          Closing SOON!
                          "LAST CHANCE FOR G.A.S." DEAL IS ON NOW

                          Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398

                          Thanks for 10 years of fun!

                          Comment

                            #14
                            The way I did it with my first e30 was to pull the rear panels out, trace them onto some MDF then cut, carpet the panels and put them back it. They didnt look very good(I was only 16 when I did it) but they sounded great with a free-air sub in there, then again it was 8 years ago that I last heard them so I could be wrong.
                            Tri color fabric for sale here!
                            http://www.r3vlimited.com/board/showthread.php?t=105922

                            Comment

                              #15
                              I have a 2-door. Actually Luke, I had thought about that quite extensively. the 8's that I have require 4 5/16" mounting depth... it seemed like it would be pretty difficult to get them to fit, but perhaps you have a pointer or two? I'm not sure exactly how I would go about sealing the subs with the correct amount of airspace while not protruding outwards in the way of the back seat. and still not having it look like a hack job (I.E MDF in place of my rear panel <.<) I would love to put my 8's in there in fact, that would open up alot of trunk space for me :hitler:

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