Hi Jim (JO): I have an R-75 also but only the stock filters. My S-AM has rarely shown (if any) improvement. If I use my imagination, on weak signals, the S-AM seems to work a little bit. Otherwise, especially with good head- phones, the R-75 audio has a lot of lows and enough highs. Works as good or better than my BA receivers but I like the BA stuff when working AM.
73, Charlie, K0NG. ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected]

