Hi Charles,
They do offer options. I opted for the Khozmo attenuator upgrade (I bought it as an integrated, it can also be configured as an just an amp) and the C core transformers, which are actually the biggest and most expensive difference between the 10th Anniversary and the regular unit.
They do offer options. I opted for the Khozmo attenuator upgrade (I bought it as an integrated, it can also be configured as an just an amp) and the C core transformers, which are actually the biggest and most expensive difference between the 10th Anniversary and the regular unit.