Uploaded March 2026 | Updated September 2026, 2 weeks ago

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In this lengthier video regarding the Marantz Model Twenty Seven receiver, I go into a deeper intro about control servicing as I do periodically. "Fickle" controls are a very common source of noise as well as other issues such as diminished audio / signal loss / intermittent signal loss etc. Therefore, I bring it up from time to time for those who have not seen me address the topic in previous videos. Additionally, I go into some troubleshooting to narrow in on a channel imbalance / asymmetry issue.

#marantz #marantzmodeltwentyseven #vintageaudiorepair #retroelectrotech