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Speakers for DIY


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DROK Digital Audio Amplifier List —Your Mini Home Audio System

DROK Competitive Amplifier. Suitable for the amateurs with strong hands-on ability, quick-witted and sagacious; besides, needs sufficient understanding of line design, component application, sound debugging and other technologies.


  1. Are full spec sheets (including Thiele Small parameters) available for these speakers? Thanks in advance.

    • Hello Brandon Weiler,
      Thank you for writing in.
      Since these speaker are new coming products, we do not have this full spec sheet right now.
      Could you please tell us which speaker you are interested?
      Best regards

  2. Hi,

    I also need spec sheets for

    Hope to get this soon, purchased 4 of these to make some transmission line speakers but they didnt come with a spec sheet.

    Thanks in advance for the reply


    • Hello,Peter McGee
      Thank you for writing in.
      We are sorry for any inconvenience caused on you.
      Here are the spec sheets for your reference.
      Hope this can help you.
      Hope200279 spec sheets
      Best Regard

      • I was hoping for a better spec sheet, with resonant frequency and other information to help me create the best enclosure.

        Thank you.

        • Hell,Peter McGee
          Thank you for your reply.
          We are terribly sorry that the instruction can’t meet your demand.
          Instruction is not suitable for you. However, if you have any question about the item, please feel free to contact us via email service at droking dot com.
          We will be always here to assist you.
          Beg your forgiveness and understanding.
          Best regards

  3. Hello,

    We would like to get specifications on the B00LSEVA8I. Can you include dimensional information also.

    Thank you.

  4. Hello,

    I need “Free Air Resonance” (Fs) and “Total Q” (Qts) parameters for B01IXZEAWC speaker (Equivalent Volume Vas is present in the Amazon description). Could you help me please?

    Thank you

    • Hello Sebastian Dam,
      Thank you for writing in.
      Since it is the vacation of weekend, our technicians are out of office, we
      cannot find a solution to you at once.
      Could you please wait 1-2 daya until when our technicians come
      back to work?
      We will find a solution to you ASAP.
      Hope you can understand.
      Best regards

  5. Hello,

    I wait the answer without problems! Meanwhile, I just bought two B01IXZEAWC speaker from Amazon marketplace.
    Thank you for very quick answer.

    • Hello Sebastian Dam,
      We are sorry for keeping you waiting.
      The parameters is as follow.
      Fs: 109.6 Hz
      Qts: 0.67 Hz
      Qms: 6.01 Hz
      Qes: 0.76 Hz

      Hope this can help you.
      Best regards.

  6. Hello,

    today I have received the B01IXZEAWC speakers and I’m very satisfied, but for a precise calculation of enclosure volume and frequency tuning I need of other two parameters:
    – Xmax
    – Sd
    Could you help me please?

    Thank you

    • Hello Sebastian Dam,
      Thanks for writing in.
      In order give you accurate values, we need to do a test on this item.
      We will tell you this two parameters once our technician finish the test.
      Have a nice day
      Best regards.

      • Hello,

        thank you so much for your time! I won’t even bore you with my questions but for me the value of “Vas” given in Amazon description is not correct. For a 15W and 3 inch speaker (B01IXZEAWC) the Vas = 2.5 litres seems too high. Could you ask your technicians if this value is ok?

        Thank you very much

        • Hello Sebastian Dam,
          Thanks for you replys.
          It’s our responsibility to find out solution for you.
          The parameters you need as follow:
          Sd : 61
          Xmax: 16mm
          The Vas range is 1.8-2.5,which ia a result from test. It’s availabe to test.
          Hope this can help you.
          Best regards.

          • Hello,

            Comparing this parameters with others manufacturers, the difference is too high. A Xmax of 16mm (1,6 cm) is not physically possible if the magnet has the height of 14/15mm (see “loudspeaker design cookbook” by Vance Dickason page 4). Moreover with a Sd = 61 (I guess cm^2) the effective diameter of the speaker (cone diameter + surround) should be 88,1mm instead the real value is 62mm. How is it possible? In order to clarify this points, could I contact directly by email your technicians?

            Thank you

          • Hello Sebastian Dam,
            Thanks for your reply.
            You can contact us through the following email:
            service#droking dot com ( please replace # with @)
            Best regards.

      • For B01IHHUO9E /B01IMQU4PO 4” 40w low hifi Woofer- what are the specifications, Vas especially ?

        Best regards,

        • Hello Gabriel Ciosu,
          Thanks for writing in.
          Here it the specification for B01IHHUO9E.
          200276 parameters
          Hope this can help you.
          However,We are sorry we can’t don’t have item(B01IMQU4PO). Is there anything wrong?
          Best regards.

          • Hello,

            Thank you for the reply. This is the product

            On the amazon site it is specified with a Qts of 0.55 as it follows:

            outside diameter speaker: 105 mm
            Impedance: 8 ohms
            Sensitivity: 87dB
            Qts: 0:55
            Effective frequency: 65Hz-6KHz
            Rated power: 40W
            diagonal screws distance: 115 mm
            Height Speaker: 57mm
            Magnet diameter: 80mm
            Hole diameter: 93mm

            Which one is the good one?

            Best regards

          • Hello Gabriel Ciosu,
            Thanks for your reply.
            Actually, they are all good items.
            We suggest you should choose one can meet your requirement.
            Best regards.

  7. Hi there

    Is there any way to see the actual length of these subwoofers?
    Which ones are up to ~ 4 cm long?

    I mean the depth, in order to use them in a slim case.

    Thanks a lot

    • Hello Matthias,
      Thank you for writing in.
      Most of speakers in the sheet have the detail description on size. You can take a look there
      Would you please let us know which item you are interested in?
      Best regards.

  8. Hello,
    Thank you for your reply.
    Can I just confirm the VAS for B01IXZEAWC is 2.5L as this seems a bit large for a 3″ speaker. Unless I’ve miscalculated that would require a box volume of 22L for this speaker.
    Kind Regards

  9. Hi,
    I have purchased a set of Drok 4 inch Hi Fi subwoofers that I want to build into a quality sound bar for cinema sound.
    The number on the box packaging is X000K16OGB.
    Could you please supply me with the following information.
    FS, Qms, Vas, Xmax, Sd, Qes, Re, and Le values.

    If not could you recommend an enclosure volume for Sealed and vented (tuned) in either Liters or cubic foot.
    Many Thanks.

    • Hello Ian,
      Thanks for writing in.
      The item you bought should be #200273
      Actually, we have talked with other buyers about its parameters in previous posts.
      That is all the parameters for this item.
      Hope it can help you.
      Best regards.

  10. Hello Wayne,
    Yes, the VAS is 2.5L
    Best regards.

  11. Many Thanks for the Parameters they should be very helpful

  12. Hi,
    I’ve purchased the B01IVAKYO2 and wonder if you have the TS parameters?
    Many thanks,
    Charlie Talks

  13. Sorry I meant B01J9QUU9Q,
    Charlie Talks

  14. spettabile Drok volevo sapere cortesemente se si potevano sapere le specifiche (VAS, HERTZ, QTS) dell’altoparlante da 4 pollici 40 watt 67 hz 6 khz 4 ohm 87 DB codice B01IHHCFQY.
    in attesa di riscontro, porgo distinti saluti, Danilo

    Spectacular Drok wanted to know courtesy if you could know the specs (VAS, HERTZ, QTS) of the 4 -inch speaker 40 watt 67 hz 6 khz 4 ohm 87 DB code B01IHHCFQY.
    waiting for feedback, I give you my best wishes, Danilo

  15. I need to replace the two, 3inch speakers in my iLoud Speaker. The manufacturer doesn’t offer replacement parts. The speakers are not marked in any way.

    Do you have any advice.

    • Hello Peter Reath,
      Thanks for writing in.
      Would kind of speaker do you need? We suggest you should firstly confirm the specification of you speaker.
      Best regards.

  16. Hi, may i use this Drok

    into the case for fostex fe103 ? is a 6.5 lt box with a reflex diameter 50mm long 60

    Thanks to all may reply

    • Hello massimiliano,
      Thanks for writing in.
      As we can’t ensure the actual size of your case, it is hard to judge if it is suitable.
      But here is the detailed dimension for our speaker. Hope this can help you.
      Best regards.

  17. Dear DROK,
    Do you have the parameters for B01GRG5O24 B00LJPNZY8 available?
    It would be very helpfull.

    Thank You ,

  18. Dear Drok,

    Do you have the parameters for B01IN8YDUI B01IVAKYO2 available?

    Thank you.


  19. Hi,
    Is there a datasheet for this speaker ?
    I am more interested in the size scheme and the distance between holes

    Thank you

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