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  • #31
    RS100-4 Results:

    Frequency Response
    Click image for larger version

Name:	RS100-4 Combined FR.jpg
Views:	377
Size:	105.0 KB
ID:	1475400

    Harmonic Distortion
    12" @ 96 dB fundamental
    Click image for larger version

Name:	RS100-4 12 inch HD @ 96 dB.jpg
Views:	359
Size:	103.5 KB
ID:	1475401

    Comment


    • #32
      RS100P-8 Results:

      Frequency Response
      Click image for larger version

Name:	RS100P-8 Combined FR.jpg
Views:	370
Size:	104.3 KB
ID:	1475403

      Harmonic Distortion
      12" @ 96 dB fundamental
      Click image for larger version

Name:	RS100P-8 12 inch HD @ 96 dB.jpg
Views:	357
Size:	103.1 KB
ID:	1475404

      Comment


      • #33
        DA115-8 Abbreviated Results

        Harmonic Distortion
        Click image for larger version

Name:	DA115-8 12 inch HD @ 96 dB fund.jpg
Views:	368
Size:	102.6 KB
ID:	1475406

        Comment


        • #34
          That RS100 looks pretty excellent on paper. The DA115 looks very good also, I have used both and I actually prefer the sound of the DA115. Probably because of that rise in the upper bass and the dip in the lower treble, I'm guessing.

          Comment


          • #35
            I’d actually tested the RS100-4 a while ago and only just got around to posting the results.
            I’ve been curious about and wanting to test the RS100P-8 for ages.

            I was surprised it exhibited a 5dB peak breakup (the data sheet indicates it’s a touch smoother), but also surprised at how low HD3 is between 250Hz and 1kHz. Pretty impressive for a driver of this size. It matches the MCM in that regard and has way smaller cone area.

            Somehow the PC105-8 is still better above 2kHz, lol. Best budget driver ever!

            Comment


            • #36
              PC68-4 Abbreviated Results:

              Harmonic Distortion
              Click image for larger version

Name:	PC68-4 12 inch HD.jpg
Views:	248
Size:	101.5 KB
ID:	1480558

              Comment


              • #37
                TC7FD00-04 Abbreviated Results:

                Harmonic Distortion
                Click image for larger version

Name:	TC7FD00-04 12 inch HD.jpg
Views:	248
Size:	102.6 KB
ID:	1480560

                Comment


                • #38
                  TCP115-4 Abbreviated Results:

                  Harmonic Distortion
                  Click image for larger version

Name:	TCP115-4 12 inch HD.jpg
Views:	267
Size:	103.4 KB
ID:	1480562

                  Comment


                  • #39
                    TCP115-4 distortion looks pretty bad. Just like I measured and heard with my quad.
                    Last edited by PWR RYD; 01-01-2022, 12:18 AM.
                    Craig

                    I drive way too fast to worry about cholesterol.

                    Comment


                    • gregrueff
                      gregrueff commented
                      Editing a comment
                      I've spent some time looking for bass drivers that maintain the HD3 at around -50dB from LF cutoff up to around 200-300 Hz. My experience with a driver this small is that you need a state of the art motor like in the E150HE-44, and then it still exceeds -50dB around 90Hz if the published data is to be believed. Alternatively you could use a larger cone area like in the RS225A (which is one of the best 8" around in this regard if I remember correctly) and it exceeds -50dB around 50Hz.

                      Both of those drivers are vastly more expensive than $12.

                      I hear what you're saying, and I don't think anyone is claiming these little monsters are state of the art, but they sure dig deep in a small package!

                    • Wolf
                      Wolf commented
                      Editing a comment
                      It's second order mostly, so it's 'pleasing' HD that is highest. The 3rd order stays a lot lower.

                  • #40
                    RS75T-8 Abbreviated Results:

                    Frequency Response
                    Click image for larger version

Name:	RS75T-8 12 inch FR 1-12th octave smoothing.jpg
Views:	116
Size:	71.7 KB
ID:	1485725
                    The dip around 1.8 kHz is better (smaller) than the factor data on Dayton's website makes it out to be.

                    Harmonic Distortion
                    Click image for larger version

Name:	RS75T-8 12 inch HD @ 90 dB.jpg
Views:	105
Size:	102.4 KB
ID:	1485726

                    Comment


                    • Wolf
                      Wolf commented
                      Editing a comment
                      650-5kHz looks really doable.
                      Wolf

                    • gregrueff
                      gregrueff commented
                      Editing a comment
                      Yeah if I remember right, it runs out of Xmax around 500 Hz LR2 somewhere between 100-105 dB. That's still pretty low because man, this driver is tiny! I think it's a very high performing driver for how small it is. And it looks pretty.
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