Looking to warm up your Lyric? This is our Standard Retube Kit for the Magnatone Lyric Combo Amps. It uses a single ECC83S for the front end, a JJ GZ34 rectifier tube and the default power tube is a single JJ 6L6GC. With the Customize option you can configure this kit to use a JJ 5881 which will drop the power output slightly and have different tonal characteristics.