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4" driver selection for cheap multimedia speaker

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  • 4" driver selection for cheap multimedia speaker

    Hi all,
    I have a pair of cheap multimedia speakers, Edifier R1200. The speakers are very nice looking, although made of rather thin wood. I am wanting a bit more of them, so I am looking to replace drivers with something better. They sound fairly well, neutral considering what I payed for them, but they still have that cheap speaker sound.

    With this speaker I have replaced the cheap amp with a Tripath TA2020, added a couple dowels for cross-bracing, and some wool stuffing.

    I've chosen the tweeter replacement, Vifa BC25SC06-04. It is the same form factor as the existing tweeter, and is about the best bang for the buck I've seen in bargain bin prices.

    Fro the woofer, I am looking at a couple options:

    1. Dayton DA115. It is uncanny how much this driver looks exactly like the one in the Edifier speaker, with one difference. The Edifier has a cheap knockoff, painted paper cone, not really metal.

    2. Dayton RS100. Here's the big question. Has anyone directly compared the RS100 to DA115? Would I be stupid to choose the DA115 considering the RS100 would be $20 more for the pair?

    3. Hivi M4N. Currently out of stock.

    Other 4" driver recommendations welcome. Would like to keep this whole project under $100, mostly because the R1200 only cost $50 to begin with.
    Last edited by dcibel; 02-07-2010, 06:22 PM. Reason: Link added.
    "I just use off the shelf textbook filters designed for a resistor of 8 ohms with
    exactly a Fc 3K for both drivers, anybody can do it." -Xmax

  • #2
    Re: 4" driver selection for cheap multimedia speaker

    These might be worth a look. I'm using them in my project.

    http://www.parts-express.com/pe/show...number=299-228
    "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy." --Winston Churchill

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    • #3
      Re: 4" driver selection for cheap multimedia speaker

      Yes, I was looking at the Peerless buyouts as well. I haden't looked at the SDS because of the small 1.5mm xmax. I would splurge on the 4" HDS nomex, because I love the bigger 830883 and 830884. However, no datasheet = no buy. I don't have measurement equipment, so have to reply on datasheets and 3rd party measurements for crossover design.
      "I just use off the shelf textbook filters designed for a resistor of 8 ohms with
      exactly a Fc 3K for both drivers, anybody can do it." -Xmax

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      • #4
        Re: 4" driver selection for cheap multimedia speaker

        Correction - RS100 won't fit. It's listed as a 4" driver, but is really closer to 3 or 3.5".

        I'd be looking at the ND105 instead.
        "I just use off the shelf textbook filters designed for a resistor of 8 ohms with
        exactly a Fc 3K for both drivers, anybody can do it." -Xmax

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        • #5
          Re: 4" driver selection for cheap multimedia speaker

          The MCM 55-3853 is a great 4" driver with a nice cast frame for $18 each. I have not heard the Dayton DA115.

          Dan
          _____________________________
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          • #6
            Re: 4" driver selection for cheap multimedia speaker

            That looks like a fine driver, similar to the 55-1853 (Zaph bargain mini), however I'm not sure if it's such a deal if I am ordering from two sources.

            I modelled the DA115 and the Vifa BC25 last night, and came up with something that looks rather nice. Total build comes in at I think $83 plus shipping. A little more that I want to spend, but I'm sure it's worth it.
            "I just use off the shelf textbook filters designed for a resistor of 8 ohms with
            exactly a Fc 3K for both drivers, anybody can do it." -Xmax

            Comment


            • #7
              Re: 4" driver selection for cheap multimedia speaker

              I like the hivi 4bn for my 4" inexpensive drivers
              Just another hobbyiest.

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              • #8
                Re: 4" driver selection for cheap multimedia speaker

                Originally posted by dcibel View Post
                That looks like a fine driver, similar to the 55-1853 (Zaph bargain mini), however I'm not sure if it's such a deal if I am ordering from two sources.

                I modelled the DA115 and the Vifa BC25 last night, and came up with something that looks rather nice. Total build comes in at I think $83 plus shipping. A little more that I want to spend, but I'm sure it's worth it.
                if you get the 55-1853 woofer from MCM, it's $5 cheaper for each, plus if you look around it's pretty easy to find the coupon code for mcm's seemingly-always-running 15% off, and knock a few more bucks off.

                if you don't mind re-using that tweeter in something else down the road, you might also want to look at zaph's "bargain mini", though you'll probably end up ordering the tweeter from madisound. paul carmody's overnight sensations with the B4N might also be a good option at a similar size. i've built two pair and they're great for their size. i'm working on finalizing a design with the RS-150 and Vifa BC25SC06 that sounds pretty good so far in testing, and should come in around $150 / pair with poly caps.
                TM (RS125/TB25-302), TM RS150S / Vifa BC25SC06, RS150-4 / Vifa ML-TL, 3CR-AL Ultra Budget: Electric Blue TM, TMM, MTM, Dragonflies , Mounties: Mini HT Satellite,sub for minions

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                • #9
                  Re: 4" driver selection for cheap multimedia speaker

                  Thanks, maybe I will check out the MCM driver after all.

                  I was looking at the M4N or B4N originally, but no one has stock at the moment, so I thought I'd see what else is out there.
                  "I just use off the shelf textbook filters designed for a resistor of 8 ohms with
                  exactly a Fc 3K for both drivers, anybody can do it." -Xmax

                  Comment


                  • #10
                    Re: 4" driver selection for cheap multimedia speaker

                    the B4N for PE has a projected re-stock date of tomorrow, for whatever that's worth.
                    TM (RS125/TB25-302), TM RS150S / Vifa BC25SC06, RS150-4 / Vifa ML-TL, 3CR-AL Ultra Budget: Electric Blue TM, TMM, MTM, Dragonflies , Mounties: Mini HT Satellite,sub for minions

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                    • #11
                      Re: 4" driver selection for cheap multimedia speaker

                      Originally posted by DanP View Post
                      The MCM 55-3853 is a great 4" driver with a nice cast frame for $18 each. ...
                      Isn't that the woofer the speaker comes with already? Looks like it (at least from the small picture I saw on the website linked).

                      EDIT: Oh, actually it looks like the the MCM 55-3870, but smaller...
                      "...this is not a subwoofer" - Jeff Bagby ;)

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                      • #12
                        Re: 4" driver selection for cheap multimedia speaker

                        I posted above, that the speaker comes with something that looks very similar to the DA115, but is not. It's a silver painted paper cone, not metal.

                        I wish to replace with something that I know performs well, and that I have frequency response and impedance data for to build a proper crossover. All these Edifier speakers have is a little electrolytic cap on the tweeter.
                        "I just use off the shelf textbook filters designed for a resistor of 8 ohms with
                        exactly a Fc 3K for both drivers, anybody can do it." -Xmax

                        Comment


                        • #13
                          Re: 4" driver selection for cheap multimedia speaker

                          Originally posted by dcibel View Post
                          Correction - RS100 won't fit. It's listed as a 4" driver, but is really closer to 3 or 3.5".

                          I'd be looking at the ND105 instead.
                          The RS125 is pretty much a 4" driver though advertised as a 5", you can get a lot of bass out of that little guy with the right alignment too.
                          EDIT:
                          Check out zaphs testing on small drivers here:
                          http://www.zaphaudio.com/smalltest/
                          ----------------------------------
                          Gear:
                          Samsung PN50A650
                          Yamaha RX-V2500
                          Hafler DH-200
                          AC130MKII/BG NEO3PDR Two-Ways
                          RS390HF-4 w/ HPSA500

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