I've been reworking a crossover on a pair of EPI loudspeaker. They use a single capacitor and resistor as a crossover. I tried some Bennic film caps to replace the old Callins electrolytic but I felt the film caps were too bright. I have liked using Muse ES caps. I tried a Muse ES and I like the results, but there is a tiny bit of attenuation of the upper treble and I thought I'd try a shunting experient. I have never used a bypass capacitor or know how to do it. Could someone help me choose the value of a bypass cap? My crossover cap value for the Muse ES is 10uf 50v. Someone has recommended a Sonicap film cap as working well acoustically with the Muse, but I'm not sure what a value to use. Thank you for your help!