Here it is. I went through many many Youtube videos to dig out these. The sounds of: First a Monarch, then a dotPad X, then the Cadence. all 3, side by side. Interesting to me that DotPad's noise is more fragmented, maybe a tad louder than Monarch, almost on-par with Cadence. Cadence may be the loudest, but also fastest-refreshing (which is where they'll always have an advantage, even when you pair 2 or 4 that refresh rate doesn't go up.) Refresh rates between DotPad and Monarch feel comparable to me: Around 1.5 to 2.5 seconds, depending on your text's complexity.
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in reply to Bri😻

@Bri yeah, granted perhaps if you equalized volumes to the exact same levels on all 3, I still think Cadence comes out as loudest, then DotPad very very close (and also a sharper sound) while Monarch leaves that almost softer noise piezo-electric Braille makes but more in a wave. I find that interesting as you'd think DotPad would refresh a little faster, but it appears to still be about the same, it's only a marginal change despite 25% less pins.
in reply to victor tsaran

@vick21 I do wonder if DotPad X has the membrane around it, like how Monarch does. If it's not the same kind of feeling that way then we know it also helps to dampen noise to some extent, as it would probably be a super sharp-sounding wave without it perhaps. But who knows. I'm sure there's a reason the DotPad X costs somehow were kept down at 1/3 of Monarch, despite having 1/3 less cells overall.
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