Owned my RE 301 for over 25 years, bought it when I was on tour, got it working, recorded with it. It always sounded cool when it worked but not like this! Shane recommended starting with the tune up kit, I bought the motor rebuild kit also just in case I needed it. Just cleaned and polished the tape heads with alcohol and silver polish, they were extremely dirty with oxidation, replaced felts, roller and feed bearing, I had some hum on the 1, 4, and 6 tape heads emailed Shane for advice, he told me to clean tape head connectors at the board and presto everything works and sounds better than it ever has, the tape echo, chorus, and reverb all sound incredible and super quiet! Worth every dollar I spent, wish I could have done this 20 years ago.