Seeking Woofer Suggestions for Accuton C50 and SS R2904/7000 Setup

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  • Lehnok
    Junior Member
    • Jul 2023
    • 1

    Seeking Woofer Suggestions for Accuton C50 and SS R2904/7000 Setup

    Greetings everyone,

    I'm relatively new to the audio hobby and recently acquired the Accuton C50 and SS R2904/7000. Given my limited knowledge, I'm in search of recommendations for a suitable woofer to complement these components. Any fellow audio enthusiasts out there with recommendations or perhaps a project I could draw inspiration from? This is my first post, but I've been an avid lurker in the community.

    Cheers,
    Lehnok
  • JonMarsh
    Mad Max Moderator
    • Aug 2000
    • 15209

    #2
    Not knowing how much information you have about these drivers, you might find the HiFi Compass page for the Accuton mid useful.


    The THD measurements at distance of 315 mm and voltage levels from 4 Volt to 11.2 Volt were carried out with High Pass Filter "on" (2nd order Butterworth type, 500 Hz cutoff, HPF2-500)



    I've experimented with it in the past, it has a nice top end, but the linear Xmax is under 1mm, so don't run it hard down low. a Crossover point around 750 Hz might be sensible, depending on your SPL targets.

    That suggests a woofer or woofers that are fairly pistonic up to 1500Hz or better. On a budget, dual RS180-8 would work well, and with sufficient volume, be able to work below 40Hz at moderate volumes (think larger Natalie P configurations). Above that price range, one might consider the Wavecor SW223, but they're expensive these days and hard to get. My favorite general purpose woofer of late has become the Dayton RSS210HF-10, because it is fairly linear, goes pretty low in smaller enclosures, and has a very clean stiff cone and surround up to the first breakup mode above 4 kHz. The main "drawback" to this driver is the low sensitivity - there is no getting around Hoffman's Iron law if you want frequency extension in a small cabinet. It is nominally a subwoofer, but it has a midrange behavior rivaling many woofers and some midranges!

    Of course, an inline 4.7kHz notch filter is recommended to suppress that peak, and cut resonant amplification of distortion products.


    Click image for larger version  Name:	RSS210HF QNF.png Views:	0 Size:	150.8 KB ID:	951021

    You may also want to review DaveFred's test series of 8" woofers.


    the AudioWorx
    Natalie P
    M8ta
    Modula Neo DCC
    Modula MT XE
    Modula Xtreme
    Isiris
    Wavecor Ardent

    SMJ
    Minerva Monitor
    Calliope
    Ardent D

    In Development...
    Isiris Mk II updates- in final test stage!
    Obi-Wan
    Saint-Saƫns Symphonique/AKA SMJ-40
    Modula PWB
    Calliope CC Supreme
    Natalie P Ultra
    Natalie P Supreme
    Janus BP1 Sub


    Resistance is not futile, it is Volts divided by Amperes...
    Just ask Mr. Ohm....

    Comment

    • Reet
      Senior Member
      • Dec 2007
      • 497

      #3
      Please provide a bit more detail on what you want to build. Big Tower, smaller compact size? Active or passive filters? Use with subwoofer or without? etc.

      Being that you are using some pricey drivers, you can look at Scan Revelator woofers, or Satori WO24, or Wavecor WF223. Bring the woofer size down to 7" and you have even more options, Illuminator 18WU? Purifi?
      Last edited by Reet; 05 February 2024, 18:21 Monday.
      https://discord.gg/h5SuNKDJfx

      Comment

      • tktran
        Senior Member
        • Jan 2005
        • 609

        #4
        Yes selecting woofers may be the fun part, but the important part is actually how big (or small) your cabinet needs to be. This has relevant because it is a factor in how deep in the bass, and how dynamic you want to go. Some of us have more speakers than rooms, so if you give us some ideas about your room and what you typically listen to, we can also give some rough guidance on what might be a good start.

        Sometimes a cardboard mockup may be useful.

        Comment

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