Good news---the glare problem I've had with my Supratek Cortese preamp seems to have been eliminated. The preamp paid a visit to Kevin Covi, who told me he was certain he found the reason for the annoying overemphasis I was hearing in the mid to upper midrange. It appears his assessment was correct---a faulty operating RIAA capacitor in the phono stage. I got the unit back today, and after having listened to a number of my "test" records for assessing my system's sound, I found no evidence of the glare unless it was actually on the record. We all have our favorite listening test records, and are well aware of their positives and negatives. In the most constructive sense, what I've heard so far coincides with my previous listening experiences with these records before I had even purchased the Cortese. I'll need more time of course before I can safely feel I'm fully settled back into relaxed listening, but I'm certainly feeling I'm getting back on course. Thanks especially to those of you Audiogoners who, with your support, wished me well. And, of course, my considerable thanks to Kevin of Supratek.