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Great news. If this trend continues I can finally cancel my DVD.com subscription. :-)

@Blumlein 88 I tried the pink noise test, and I could barely turn it up to 75 dB (with two speakers) before the noise was very uncomfortable. Comparing that to the voltage test, it was the same 3.3V zone. When I play music in that zone it sounds reasonably loud. If I try to go a little louder...

@HammerSandwich I tried Pano's Voltage Test, and my results were 3.3V. If I'm reading the post correctly that means I would need 10.89 watts RMS? I wasn't sure if that number was total or per channel. Does that imply that my 8 watts per channel would be enough? I did notice that the 4V area (16...

Thanks Blumlein, I'll run the test this evening and report back.

Thanks Ray, this is very enlightening! Based on the information everyone has provided, it sounds like I need to upgrade to 100W/ch since my peaks are probably as high as 105 dB at 1 meter. Is there a standard issue AudioScienceReview speaker amp? It seems like there's a general consensus in the...

That's very helpful, thanks everyone! Andreas and Ray, when I measure with my sound meter 1m away and play a few tracks at a louder than normal volume, I see a max of 83.6 dB. Does that mean I do have enough headroom?

In my den I typically listen to the speakers at a volume of around 65 to 75 decibels on my couch about 2 meters from the speakers. I rarely, if ever, hit 80 or 85 decibels. Since my KEF LS50s have a sensitivity of 85 dB/W/m, and my listening volume is always below 79 dB at 2 meters, would I gain...

Seeing some of these stories, I can't believe my luck. A few months ago, I unsubscribed from all Massdrop emails. Fast forward to now, and I requested the drop but completely forgot about my email settings. For some reason, without receiving an email, I decided to check the page for news on...

Thanks @flipflop. Is the linearity graph the best one to look at for distortion levels?

That's very helpful, thanks! On most gear I can't hear the noise floor, even with the IE 800S. One recent exception was the WHAMMY headphone amp which I built recently. The noise floor is inaudible with my Sennheiser HD 660S but very audible with the IE 800S.

Looking at the THD+N graphs which chart THD+N percentage vs power, it seems like distortion is quite high at low volumes. Is that accurate? I often listen with the Sennheiser IE 800S, and it has a sensitivity of 125 dB SPL/V and impedance of 16 ohms. To try and estimate the mW at my typical...

It would be interesting to see measurements of something like the Sabrent USB audio interface, which retails for $7.50 and is only slightly larger than a postage stamp: https://www.amazon.com/Sabrent-External-Adapter-Windows-AU-MMSA/dp/B00IRVQ0F8/ref=sr_1_1 I'm currently traveling with one...