An on-line review site called 10Audio actually did review both cables. He loved the AU24 cables, and really loved the 'e' upgraded version.
Here are links to those reviews.
AU24 review
AU24e review
FYI, I used the AU24 cables for a few years, (2 sets actually, as I bi-wired them), and I found them to be a very good cable, and tough to beat on a best bang for the buck basis. (I recently upgraded to the Jena Labs Pathfinder cable, and it is better, but at twice the price it better be!) If you are local (SF Bay Area), and would like to try them out, contact me, as I am going to be selling them soon, and I could loan them to you to try out to see if they work for you.)
Good Luck in your research!
Here are links to those reviews.
AU24 review
AU24e review
FYI, I used the AU24 cables for a few years, (2 sets actually, as I bi-wired them), and I found them to be a very good cable, and tough to beat on a best bang for the buck basis. (I recently upgraded to the Jena Labs Pathfinder cable, and it is better, but at twice the price it better be!) If you are local (SF Bay Area), and would like to try them out, contact me, as I am going to be selling them soon, and I could loan them to you to try out to see if they work for you.)
Good Luck in your research!