Not only Dan's rath, but the process voids the warrantee.
I have, use for my mid/highs, and love my 300, but wouldn't upgrade until I could buy a used (almost out of warrantee) 400cx. I have been advised by a Krell dealer that the improvement in going to the 400cx, is not as great as the improvement that I got using the Pure Note power cord. I personally wouldn't want to void the warrantee on a new unit, but others have.
Richard
I have, use for my mid/highs, and love my 300, but wouldn't upgrade until I could buy a used (almost out of warrantee) 400cx. I have been advised by a Krell dealer that the improvement in going to the 400cx, is not as great as the improvement that I got using the Pure Note power cord. I personally wouldn't want to void the warrantee on a new unit, but others have.
Richard