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  • Motherboard to Amplifier

    I can't seem to find specifics and I'm not sure if it's a concern or not. Before I go and purchase the Audison LRX 6SR, I thought I better confirm that the line out voltage from the (LV 675D) motherboard's 1/8" jacks will be high enough to suit the minimum input levels for that amp.
    Is there a "normal" voltage level comes from the MB's 1/8" jacks?
    Will the system suffer considerably (line loss) by running these 6 RCA cables from the glovebox (PC) to the hatch area (amplifier)?
    http://gickr.com/results4/anim_5055e...a2b3b197c9.gif
    1990 RHD JDM 300ZX TT 2+2 5sp T-Top
    491RWHP / 18psi / 94 octane

  • #2
    .5 v is the norm

    and no, it's absolutely, positively, without a doubt, not high enough if you care at all about sound quality.

    That's why many of us are running processors and/or dacs or various other options.
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

    Comment


    • #3
      You could of course, consider a line voltage driver which would take the signal and amplify the signal considerably. I know that Farenheit makes a few. Boss also has one floating around. Just another option.
      Check out the updates. Project 2003 Dakota worklog: http://www.mp3car.com/vbulletin/showthread.php?t=85490


      IS JACK BAUER GONNA HAVE TO SMACK A *****?

      Comment


      • #4
        Originally posted by RedGTiVR6 View Post
        .5 v is the norm
        and no, it's absolutely, positively, without a doubt, not high enough if you care at all about sound quality.
        That's why many of us are running processors and/or dacs or various other options.
        Thanks Red, I kind of figured as much but couldn't find the exact numers. If I were to go the Silverstone route I'd only have a single pair of RCA's out. If I read the sites PDF manual correctly, the amp requires the 6 RCA inputs and not just the stereo pair. So, 5.1 would be out of the question using that DAC. Input requirements state between 0.2-5VRMS. Are the line voltage drivers a good option to go with? Would that mean I would need 6 of them?


        It seems the optical input 5.1 amp concept is the optimum choice. Just wish I didn't get screwed over by millionbuy.com for my ICBM5.1 when they failed to send the IR remoting apparatus. Without the remoting equipment it's completely useless.



        *edit*
        I imagine one of the best ways to get around this with the Audison amp is to get the Audiobahn ADD51T ....right? If so, I don't necessarily have to mount it by the dash do I? My 2 DIN is accupied by the TS display. I could mount it right beside the amp too?
        http://gickr.com/results4/anim_5055e...a2b3b197c9.gif
        1990 RHD JDM 300ZX TT 2+2 5sp T-Top
        491RWHP / 18psi / 94 octane

        Comment


        • #5
          if you're using that amp, putting anything as poor quality as Audiobahn is a shame.

          Look at an audiocontrol.

          the other things about the line driver, you signal will suffer as well that way.
          Jan Bennett
          FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

          Please post on the forums! Chances are, someone else has or will have the same questions as you!

          Comment


          • #6
            personally i'd wait to figure out your high end 5.1 solution. i'd probably get a decent 5.1 soundcard and just sit tight until someone makes a spdif or usb dolby digital decoder and do it right then. i'm pretty sure the maya 7.1 cards are decent.

            possibly these too:
            http://www.neoseeker.com/Articles/Ha...icedge_psc706/


            or maybe look into this:
            http://us.creative.com/products/prod...Specifications
            New System in progress:
            M10k
            Phaze TD1500 ~> Dynaudio MD130
            Phaze TD1500 ~> Seas g18rnx/p
            Zapco Ref 500.1 ~ 12" tc-9
            Behringer DCX2496 ~ Envision Electronics psu
            Transflective Xenarc

            My Car Pc Install
            My Boat Pc worklog

            Comment


            • #7
              I never heard of Audiocontrol til now. There's so much there although it appears that the majority is based on integrating with a HU - which I won't have.
              http://www.mobileaudiocontrol.com/de...21366&l1=21366
              I'm not sure which particular route on that page would suit going from the onboard soundcard to the amp.
              http://gickr.com/results4/anim_5055e...a2b3b197c9.gif
              1990 RHD JDM 300ZX TT 2+2 5sp T-Top
              491RWHP / 18psi / 94 octane

              Comment


              • #8
                i had an audiocontrol x-over/linedriver (24xs) and it is a great piece of hardware. just adding the x-over inline with my setup was a major improvement w/o any tweaks.

                you'd only need the 6 chan line driver at the very least, if you were going that route of boosting the signal... but i'd try w/o the line driver at first and see how you like it.
                New System in progress:
                M10k
                Phaze TD1500 ~> Dynaudio MD130
                Phaze TD1500 ~> Seas g18rnx/p
                Zapco Ref 500.1 ~ 12" tc-9
                Behringer DCX2496 ~ Envision Electronics psu
                Transflective Xenarc

                My Car Pc Install
                My Boat Pc worklog

                Comment


                • #9
                  i've always wondered if you could hack one of these:
                  http://us.creative.com/products/prod...0&nav=features
                  and get a preamp signal from the 'brain' of the system.
                  New System in progress:
                  M10k
                  Phaze TD1500 ~> Dynaudio MD130
                  Phaze TD1500 ~> Seas g18rnx/p
                  Zapco Ref 500.1 ~ 12" tc-9
                  Behringer DCX2496 ~ Envision Electronics psu
                  Transflective Xenarc

                  My Car Pc Install
                  My Boat Pc worklog

                  Comment


                  • #10
                    It sounds like I'd have to add component after component after component, which can translate into big $$. Are there no options of simply running an optical line to a component just prior to the Audison amp? At least the line loss issue or low sound card voltage won't be a factor. Not to mention one line run from front of car to rear and not 6.
                    Is the ADD51T that poor of quality that it will take away from the quality of the Audison amp.
                    http://gickr.com/results4/anim_5055e...a2b3b197c9.gif
                    1990 RHD JDM 300ZX TT 2+2 5sp T-Top
                    491RWHP / 18psi / 94 octane

                    Comment


                    • #11
                      no options besides the alpine pxa-h701
                      New System in progress:
                      M10k
                      Phaze TD1500 ~> Dynaudio MD130
                      Phaze TD1500 ~> Seas g18rnx/p
                      Zapco Ref 500.1 ~ 12" tc-9
                      Behringer DCX2496 ~ Envision Electronics psu
                      Transflective Xenarc

                      My Car Pc Install
                      My Boat Pc worklog

                      Comment


                      • #12
                        odd, well i my case not set up yet, i thought you can just get it though, i have Sound Blaster X-fidelity, the front/rear goies into 4 channel, amo, and middle goes to the mono amp with sub

                        both amps are activatied though power delay switch to avoid pop

                        Yev
                        R. T. F. M

                        Comment


                        • #13
                          Originally posted by scott_fx View Post
                          no options besides the alpine pxa-h701
                          to clearify...no 'optical' options
                          New System in progress:
                          M10k
                          Phaze TD1500 ~> Dynaudio MD130
                          Phaze TD1500 ~> Seas g18rnx/p
                          Zapco Ref 500.1 ~ 12" tc-9
                          Behringer DCX2496 ~ Envision Electronics psu
                          Transflective Xenarc

                          My Car Pc Install
                          My Boat Pc worklog

                          Comment


                          • #14
                            Originally posted by jschrauwen View Post

                            Is the ADD51T that poor of quality that it will take away from the quality of the Audison amp.
                            Yes. I'm surprised. Spend all that time and money to research amplifiers and speakers, then nothing to research the processor? Audiobahn is regarded as the biggest knock off in the industry. They never come up with their own ideas, they always mock other companies top selling items, they hardly put any research into their own products, they use incredibly cheap parts and are built the same way.

                            See my sticky at the top of this forum for processors. Those are your options.

                            http://www.mp3car.com/vbulletin/showthread.php?t=82414

                            There's the link.
                            Jan Bennett
                            FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

                            Please post on the forums! Chances are, someone else has or will have the same questions as you!

                            Comment

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