I upgraded their average Xovers inside which made a substantial increase
across the board , and a good power cord which we used AQ Thunder
made a additional increase in fidelity through a AQ Niagra 5000 power conditioner .
electrostats are very sensitive to changes.I no longer own them I also owned the ML Evolution with the powered Bass , as with most speakers in mean 90% in truth go cheap on Xover parts inside . I have for the last 20 years always looked to see
what mess they offered ,Maggi worst junk out there , those steel inputs pathetic mass os resistance fifty cent resistors and junk capacitors , Klipsch is another one
I have owned 3 models of each ,sad but truth ,since the Xover is the ♥️ of all loudspeakers, and Xover less doesnot cut it ,no one driver can do everything
having owned a Audiostorefor a decade and 40 years in Audio
rule of thumb 25% on average goes into your speakers or electronics including packaging ,the rest R&D overhead and markup ,unless you are spending $$ expect average parts at best inside your product ,$$ is the driving force
even in $50 k loudspeakers not even close to the best Xovers like Duelund
and on any SE models they charge 4-1 in $$markup in parts ,
cables far more markup. Just to inform others .research inside your product or go to Google Images to possible see what’s under the hood.