My new Borresen X3's

I know several who own them and I helped upgrade their only weakness 

like most speakers under $30 k 

they use the lower grad3 Ajantzen capacitors , for another $600

they should have used the Jantzen Alumina Z foil capacitor much better 

after changing just 2 capacitor a big difference lone guy used the VH Audio Odam 

capacitors  and path audio resistors it make a very good speaker at least 15% better still. Just go to humble home made hifi capacitor test ,.

Yes the C series is better but you better have 2x the $$ money to buy them .

theyhave speakers up to$500 k 

the x series are stil a very good buy .