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Has there been any updates for the DSP 408 ?

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  • Has there been any updates for the DSP 408 ?

    Specifically for the alternator whine issues for automotive use ? I'm not talking about when using the remote. I guess a lot of guys had that issue too... But I didn't get a remote with mine, for just that reason.
    Mine made a horrible loud whine + some rumbling, with the truck running. I had a solid ground, where everything else is connected, and no problems with anything else.
    Anyway, it was pretty janky and completely rigged, but I ended up using a 12v to 110v converter, that plugs into the cigarette lighter, then used to 110v adapter supplied with the DSP 408... so, 12v to 110v and back to 12v, and it completely fixed all the noise issues. Its just a goofy rigged setup wires that I have to hide from view... Looks stupid, but sounds fine.

  • #2
    The problem lies not in your DSP, dear Fishchris,
    but in your alternator.

    You must filter its output,
    to calm a sea of noise.

    (apologies to Wm S)

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    • #3
      Lol yup. That's a hardware issue. No software in the world will cure it.
      Francis

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      • #4
        Might I suggest a different set of patch cords? You don’t need to spend good money on super hoopty RCA’s, but I often find noise coming in through them. Some equipment is more affected than others, so one amp might be dead quiet while another hums away using the same RCA. What drives me bonkers is finding which ones are noisy and which arent; sometimes the cheap-o Walmart ones are perfect and the name brand sets are garbage.

        There are two different standards for sending signals through RCA’s and I doubt the dsp u it uses the fancier, more rare standard but that is also worth investigating. Can’t remember the name of them off the top of my head.

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        • #5
          Originally posted by davidB View Post
          The problem lies not in your DSP, dear Fishchris,
          but in your alternator.

          You must filter its output,
          to calm a sea of noise.

          (apologies to Wm S)
          Even the tech guy... was his name Blaine ? .... said that the DSP could have / should have been built with a filter which would remove such a whine. That's why I posted this, to see if it ever had been taken care of ?

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          • #6
            Originally posted by Fishchris View Post

            Even the tech guy... was his name Blaine ? .... said that the DSP could have / should have been built with a filter which would remove such a whine. That's why I posted this, to see if it ever had been taken care of ?
            Perhaps he meant a suitable power filter. And, maybe it should have included that, but I doubt they'll wire in a power filter after the fact.
            Francis

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            • #7
              FWIW, I'd love to see a s/w update that added the following as features:

              1. Multiband compression / limiting
              2. Dynamic EQ

              I miss those features (ok, only the second one) from my iNuke DSP amp...
              Brian Steele
              www.diysubwoofers.org

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              • #8
                Wonder it this has anything to do with the always present noise in the dsp408?
                http://techtalk.parts-express.com/fo...khanspires-but
                http://techtalk.parts-express.com/fo...pico-neo-build
                http://techtalk.parts-express.com/fo...ensation-build

                Comment


                • #9
                  At least it hasn't bricked on you yet.
                  Craig

                  The lowest possible F3 box alignment is not always the best alignment.

                  Designing and building speaker projects are like playing with adult Lego Blocks for me.

                  Comment


                  • #10
                    Originally posted by PWR RYD View Post
                    At least it hasn't bricked on you yet.
                    Ha! Surely they fixed that by now.
                    http://techtalk.parts-express.com/fo...khanspires-but
                    http://techtalk.parts-express.com/fo...pico-neo-build
                    http://techtalk.parts-express.com/fo...ensation-build

                    Comment


                    • #11
                      Originally posted by PWR RYD View Post
                      At least it hasn't bricked on you yet.
                      Bricked ? Do you mean to say, "died" ? Hope not. Mines working fine with the 120 v converter, but if it ever just died, Id definitely replace it with something else. Not because of function, but because of the known issues with it.

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