both are great speakers. one significant difference is that the Kharmas are generally easier to drive......and 50 to 100 tube watts are plenty for them in medium sized rooms......whereas, the Avalons typically like at least 150+ watts or more.
i own the Kharma Exquisite 1D's and do prefer the Kharma's in general to the Avalons.....but i like the Avalons. the Kharmas to me are slightly more refined and coherent (but the Avalons can be pretty good in this area too).
the Avalons may be a little more 'punchy'.....meaning slightly more slam and bass energy.....although i overall prefer the bass articulation and accuracy of the Kharma.
system and amp matching would be a big part of the answer to your question.
good luck.
i own the Kharma Exquisite 1D's and do prefer the Kharma's in general to the Avalons.....but i like the Avalons. the Kharmas to me are slightly more refined and coherent (but the Avalons can be pretty good in this area too).
the Avalons may be a little more 'punchy'.....meaning slightly more slam and bass energy.....although i overall prefer the bass articulation and accuracy of the Kharma.
system and amp matching would be a big part of the answer to your question.
good luck.