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SOLD About 10 years ago I had it serviced. There was an intermittent switch (listening) that needed cleaning. Other than that, it has worked flawlessly. Great phono stage. I have the original oem packaging for this.

Hi all, first time poster here. First, my apologies for the LONG post! I happily discovered this forum fairly recently while on the hunt for an audio community with a science based approach instead of the usual "magical thinking" that unfortunately seems to dominate most of the online audio...

A local customer of mine brought over their Adcom GFA 5200. I took some measurements of it and posting up for the community. Amplifier's Manual: https://www.audiosciencereview.com/forum/index.php?attachments/gfa5200-pdf.221628/&hash=4749a63d9284e7b496796bb00f6f33b9 All the measurements below...