Hi
I compared Zensor 1 to Lektor 2 when I bought my Sonos Zoneplayer 120 lately. The zensors are extremely detailed, and I love the tweeters. They are however a bit thin on the bass. Initially I thought I would buy the Lektor 2's, but after bringing them home I couldn't ignore the lack of detail at low volume. If you play them at medium to high volume, they are cracking speakers, also compared to the Zensor 1's (IMHO). But the lack of detail at low volumes (like around dinner time), meant that I ended up buying a pair og Ikon 1 MkII.
Coming back to the Zensor 1 speakers, I would say, that if your budget is at their price, there's nothing to think about, just buy them. They are a catch at the price
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Note that all my experience with the three speakers mentioned are on a Sonos ZP120 playing apple lossless
/Cheers