Report Review for product Capacitor - Solen, 250V, "Fast", Metalized Polypropylene

I replaced a all of the 1 uF non polar aluminum electrolytic capacitors with 1 uF Solen Metalized Polypropylene used in a cross-over network in computer speakers with sub-woofer. The Solen capacitors do not introduce distortion that the non polar electrolytic do. I have used values of Solen capacitors in other audio circuits and in every case distortion is reduced.