[Ron]

   I have built a number of X-LS Encores with the performance upgrades (Sonicaps, Mills, No-Rez) as well as have  other Audio Circle members. These upgrades definitely raise the performance level of the X-LS Encores. My question is has anyone tried these performance upgrades on a pair of X-LS Classics?  If so, does it make a noticeable improvement in performance and is the improved performance worth the added cost of the upgrades?

[corndog71]

I've added no rez, erse caps and link resistors to the classic xls and while it was better than it's factory form, it was still a more subdued and warmer speaker than the encore version.  The encore tweeter has a much better high frequency response.

[Ron]

   I kind of figured that. So the upgrades basically improve the performance of the Classic X-LS, but the overall characteristic of sounding subdued and warm remains the same. I agree that the high frequency response of the X-LS Encore with the Peerless tweeter is excellent especially with the performance upgrades.
Thanks for answering my question.

[Danny Richie]

The best upgrade for the classic version is to upgrade it to the Encore version.

The tweeter and the crossover can be swapped out. I have an Encore tweeter with a bigger face plate that allows them to drop into the classic tweeter hole.