Wow, just received my L2 Pros as a replacement for my L2 today. To my ears the hiss on the L2 is definitely louder,and I can tell a clear difference between the highs (clear crisp symbals) and bass (tighter and much less muddy) on the Pro versus non Pro version. I also find the pro version doesn't need to be as loud to get enjoyment and it also appears to be able to play at higher volumes.
There is still a low hiss on the Pro I listen for it, but I noticed listening to AMR or quiet podcasts it's much less obtrusive versus L2 at very low volumes. Maybe the hiss will always be there and this is a trade off for such a great TWS
The one I got says Iteration 1 on the box and I was able to update to firmware version 1.22, so I assume this is the Ver. 3 Rev. 2 but I'm not sure.
There is still a low hiss on the Pro I listen for it, but I noticed listening to AMR or quiet podcasts it's much less obtrusive versus L2 at very low volumes. Maybe the hiss will always be there and this is a trade off for such a great TWS
The one I got says Iteration 1 on the box and I was able to update to firmware version 1.22, so I assume this is the Ver. 3 Rev. 2 but I'm not sure.
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