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  1. March Audio

    March Audio Sointuva Speaker

    Im afraid I havent played around with a DEQX unit. There are a number of ways we could go about implementing dsp active options. Requires some thought ;)
  2. March Audio

    March Audio Sointuva Speaker

    On ignore.
  3. March Audio

    March Audio Sointuva Speaker

    DSP is probably the bigger advantage here but yes it's a very nice potential ;) I think there is an interesting question regarding how willing the wider "audiophile" market is to accept active dsp speakers despite their advantages.
  4. March Audio

    March Audio Sointuva Speaker

    Oh there are plenty of challenges to overcome even with high quality drivers ;) Thank you :) A waveguide could improve the consistency of the measured dispersion 3 to 5kHz but its interesting to note that with the subjective evaluation that's been performed in different rooms with various...
  5. March Audio

    March Audio Sointuva Speaker

    Sorry not going to get into your obvious provocation LOL. It's erroneous for a number of reasons, but yes I do disagree with Amirs methods (as have others) regarding his subjective evaluations in a purported scientific review context. It should be fine for adults to have differing opinions...
  6. March Audio

    March Audio Sointuva Speaker

    I have absolutely no concerns in this respect :)
  7. March Audio

    March Audio Sointuva Speaker

    I have personally always had a preference for the "tighter" sound of closed boxes. Unfortunately they inevitably have less extension. Many ported speakers to my ears sound "loose" and uncontrolled. The Sointuvas combination of the Purifi woofer and PRs sounds more like a closed box in this...
  8. March Audio

    March Audio Sointuva Speaker

    Hi @Martin From the looks of the measurements you posted there that tweeter may be suffering some break up at the top of the audible range plus it has a rising response from about 7kHz so its possibly not a good example of the breed or a good implementation. Your response of "fatiguing"...
  9. March Audio

    March Audio Sointuva Speaker

    Hi Our humidity varies too. We also use heating in winter. Albany Paris Perhaps not as different as you imagine. The properties of the wood and its application were discussed at length with our wood machining supplier. They have decades of experience and saw no potential issues.
  10. March Audio

    March Audio Sointuva Speaker

    Hi @Thomas savage I will continue to contribute to ASR occasionally within the constraints that I am allowed to ;) We won't be sending a pair to ASR for review as I have some fundamental disagreements with Amirs subjective assessment methods. The measurements won't be significantly differnt to...
  11. March Audio

    March Audio Sointuva Speaker

    Yep you are right I will update it tomorrow to indicate 1 pair, plus put a note that they can be purchased individually (centre speakers)
  12. March Audio

    March Audio Sointuva Speaker

    Yep we remedied that :) The T34A indeed has better directivity above 10kHz.
  13. March Audio

    March Audio Sointuva Speaker

    Hi @Alexanderc There is an "Order Now" link button on the product page plus you can go straight to the shop page https://www.marchaudio.net.au/product-page/sointuva-speaker However I haven't optimised the mobile page and it appears a little mixed up compared to the desktop page. I will fix...
  14. March Audio

    March Audio Sointuva Speaker

    Your concerns are unfounded, the wood is quite stable and strong. We also have about 35 deg C temp swings in Albany Australia over winter to summer ;) Technical info on the wood can be found here: https://www.wood-database.com/western-sheoak/ Please note that this is just one of the woods...
  15. March Audio

    March Audio Sointuva Speaker

    Thank you. They are 25mm timber sheets concrete cut and finished with a wax oil. No veneer. Painted versions are mdf.
  16. March Audio

    March Audio Sointuva Speaker

    Hi @Pjetrof Now available :) https://www.marchaudio.net.au/sointuva Here are a pair of cabinets in Australian SheOak https://www.wood-database.com/western-sheoak/
  17. March Audio

    On Class D Amplifiers Measurements

    We need to record the output of the amplifiers.
  18. March Audio

    On Class D Amplifiers Measurements

    So in terms of audible distortion we can ignore the 12kHz line as its 2nd harmonic is at 24kHz and 3rd at 36kHz. So for a cheap amp is it anything horrendous? It can bang out 60 watts ish at less than 0.1% THD. For $72 thats probably quite good!
  19. March Audio

    On Class D Amplifiers Measurements

    Which we have shown to be vanishingly small (with a decent class d amp)
  20. March Audio

    On Class D Amplifiers Measurements

    Oh another thing to point out with the IM plot you posted is the the power level shown is 100 watts. This is way above any level you would expect to see with music close to 20kHz. Look at just how low the imd products are. :) Again it's a demonstration of the idea that class d has high...
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