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What drivers do you wish Dayton would create?

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  • mattk
    replied
    Originally posted by gregrueff View Post
    How about a 3” cone, true midrange driver. One that won’t go below 200 Hz, but has high sensitivity instead.
    Use the RS100 frame and offer it truncated as well. Shoot, base it on the RS100P because it has good distortion performance, but give it a huge neo magnet and some sensitivity. Get it up close to 96 dB @2.83V. Make sure the breakup is high enough that you can cross LR2 at 3.5kHz or higher for those that like ribbons.
    It’s now the most popular true midrange ever.
    Beats the pants off the RS52.
    Check post #3 in this thread

    Leave a comment:


  • gregrueff
    replied
    How about a 3” cone, true midrange driver. One that won’t go below 200 Hz, but has high sensitivity instead.
    Use the RS100 frame and offer it truncated as well. Shoot, base it on the RS100P because it has good distortion performance, but give it a huge neo magnet and some sensitivity. Get it up close to 96 dB @2.83V. Make sure the breakup is high enough that you can cross LR2 at 3.5kHz or higher for those that like ribbons.
    It’s now the most popular true midrange ever.
    Beats the pants off the RS52.

    Leave a comment:


  • Krillin
    commented on 's reply
    Unknown. The Jamo R909 uses the W15CH-JamFG as the midrange. Not sure why there is the discrepancy on the model number on HifiCompass. It's possible he tested the midrange from the R907?

    The technical data section on HifiCompass is almost always a copy and paste from the datasheet. So whether the parameters here are real or copied from the M15CH datasheet is unknown to me.
    https://hificompass.com/en/speakers/...seas-m15ch-jam

  • jonasz
    replied
    Originally posted by Krillin View Post

    The Jamo uses a custom Seas Excel Hexadyme motor and I'm certain (I own the r909). While this is more of a woofer-mid comparison John_E_Janowitz's post #19 from the link below is very good reason on why a dipole specific driver is beneficial. Pretty large differences especially in required power and fighting the driver frequency response.
    https://www.diyaudio.com/community/t...advice.233045/

    I'm not saying there are not good open baffle designs using regular drivers. Just that a dedicated mid would be for DIY use.
    The Jamo use a regular W15CH with different paint so they can say it’s custom, no?

    http://www.seas.no/index.php?option=...ers&Itemid=359

    Leave a comment:


  • mcargill
    commented on 's reply
    Krillin, Since you are interested in "metamaterial," have a look at my Corona.
    https://techtalk.parts-express.com/f...rial-enclosure

  • Krillin
    replied
    Prices for phono cartridges are getting out of control and have nearly doubled in the past 10-15 years. A Parts-Express or Dayton branded cartridge(s) would be welcome, not fancy looking but a phono cartridge that has it where it counts. Low inductance, great quality, and a quality nude stylus (not bonded) with great contact area such as MicroRidge/MicroLine, Line Contact, Shibata, or generic equivalent. No elliptical or conical stylus, they wear out the record faster and are lower quality.

    MC Low Output Cartridge - There are a lack of MC low output cartridges at good prices and plenty of demand. The most cost effective MC low output cartridge out there with a quality stylus is the AT-OC9XML or AT33PTG/2 ($549). That's the cost of a Playstation 5 folks for something without a replacement stylus and it wasn't always so.

    MI (Moving Iron/Fixed Coil) Cartridge - Has lower mass potential than Moving Coil and far less failure mechanisms. Lower rotational inertia which is not insignificant. Has the potential to be better than MC. While I am not a fan of this company's pricing I did find this an interesting read (https://www.sound-smith.com/articles...ent-technology). A replaceable stylus would be a plus if not detrimental to performance. People are willing to pay for quality if there is a replaceable stylus and assuming the stylus is sold at a reasonable price.

    MM Cartridge - Not really needed. I think Audio Technica has this area already covered in low cost alternatives.

    There must be a cartridge manufacturer in the USA, Europe or Asia willing to manufacture at a decent price for a Parts-Express/Dayton branded product. Most of the time people pay for a name and products are rebranded all the time.

    Leave a comment:


  • ernperkins
    replied
    Do you mean 0.003% THD at rated output? If so, the TSA7800B (ADAU1701 DSP and class D amps) won't come close, even at 1W. The TSA7800B is a budget implementation at $75 per board. You're looking for a different level of performance (and cost).

    Leave a comment:


  • tktran
    replied
    Hi,

    have you seen measurements of that unit?

    I’m looking for something with closer to 0.003% distortion.

    Leave a comment:


  • ernperkins
    replied
    Google TinySine TSA7800B.

    Leave a comment:


  • tktran
    replied
    What I really wish they would create/release is a 3 way amp with built in DSP and up to date wireless inputs eg. BT as a minimum. Something like 50-100Wx2 + 20 for tweeter would do it.

    Leave a comment:


  • Krillin
    replied
    Originally posted by Wolf View Post
    As to dipolar mids, the Jamo appears to look like the Zaphaudio ZA14 or the Seas L15, but neither have NIB mags. The Archos used a PHL driver.

    The TB W5-1611 has been used as such with great results. There are others...

    Wolf
    The Jamo uses a custom Seas Excel Hexadyme motor and I'm certain (I own the r909). While this is more of a woofer-mid comparison John_E_Janowitz's post #19 from the link below is very good reason on why a dipole specific driver is beneficial. Pretty large differences especially in required power and fighting the driver frequency response.
    https://www.diyaudio.com/community/t...advice.233045/

    I'm not saying there are not good open baffle designs using regular drivers. Just that a dedicated mid would be for DIY use.

    Leave a comment:


  • Wolf
    replied
    I see you show a pic of the Salk Archos there. I heard the previous edition with the MDT33, and it is easily placed in my top 10 of experienced builds encountered at DIY events. Jeff did a great job on that xover.

    As to dipolar mids, the Jamo appears to look like the Zaphaudio ZA14 or the Seas L15, but neither have NIB mags. The Archos used a PHL driver.

    The TB W5-1611 has been used as such with great results. There are others...

    Wolf

    Leave a comment:


  • Krillin
    replied
    1) Open baffle midrange - A Dayton phase plug 5" to 6" mid with usable good off axis response to 3khz. The Dipole6 is discontinued and the Jamo R909 midrange is not available to the public. A neodymium motor to not obstruct the rear wave.

    Click image for larger version  Name:	Jamo r909.jpg Views:	0 Size:	869.9 KB ID:	1485755Click image for larger version  Name:	Salk archos.jpg Views:	0 Size:	22.2 KB ID:	1485756
    2) Acoustic metamaterial - Dayton tweeters employing meta would be interesting like KEF. However, lets think beyond tweeters and what about acoustic damping material for midrange enclosures sold by the sheet for DIY speakers. This super "Meta" material has done very well in the Dan Clark Stealth headphones as reviewed by Amirm.

    Click image for larger version  Name:	Dan Clark Stealth AMTS meta material.jpg Views:	0 Size:	42.5 KB ID:	1485754

    To quote him "Metamaterial is usually a 3-D construct that has better properties than any solid base material. It can be designed to perform a number of acoustic functions from diffusion (to deal with standing waves for example) to resonances (acting as filters to tune the frequency response). We saw an example of such metamaterial in the KEF LS50 Meta speaker I recently reviewed where it was used to reduce reflections within the enclosure better than any normal acoustic material. The down side is cost which as you can imagine is contributing to the retail cost of Stealth."

    3) New AMT designs - The Dayton AMT designs are a good but Mundorf is still better so I would like to see more updated designs. Also, I'm not sure what happened to the Dayton AMT1-4 since it has very good distortion measurements when measured by Voice Coil magazine. No wonder the AMT1-4 was so good "Dayton Audio's AMT1-4 air motion transformer (AMT) tweeter provides lightning fast and airy high frequency response by using a German-made, genuine Mundorf folded Kapton ribbon." Bring it back please and was the Dayton Esoteric ES104AMT-4 just as good?

    Click image for larger version  Name:	dayton amt1-4.jpeg Views:	1 Size:	252.0 KB ID:	1485757

    https://pearl-hifi.com/06_Lit_Archiv...2013_8_Aug.pdf
    https://www.daytonaudio.com/images/r...essRelease.pdf

    Leave a comment:


  • Scarface1
    commented on 's reply
    what about the dayton nd16fa-6? it is 32mm wide, can play to 3500hz.

  • mcargill
    replied
    I like the combination of the Dayton Audio AMT 2 and AMTPRO, but they have faceplates so dissimilar that installing them together is awkward. It would be even better to get them together, from the factory, on the same faceplate, so that spacing between them can be optimal.

    I have wished for a robust 1/2-inch tweeter in a small package for 4,000Hz-20,000Hz. Every tweeter available seems to have too big a faceplate, too little power handling, too high a pass band, or too restricted dispersion.

    Leave a comment:

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