.
I came to the startling realization that the better source you send to the 120's, the
better the output sound
Played the Orbison concert DVD "A Black & White Night" ...since I had subbed a DVD player into the system to replace the CD deck. Wow
Also now that they are on stands where they reflect light, I noticed a cup ring on the top.
Dredging back into LHF archives , the answer appeared. TOOTHPASTE
Got a rag and buffed it in ... ring gone ... (and my speaker now smells minty fresh )