As the title states I finished the upgrade kit yesterday. I am floored by the difference in sound quality, it produces a very rich sound compared to the stock transformers. Bass is well defined, midrange is great, and the highs clear, it is like having a veil lifted. I purchased the upgrade kit about two years ago and finally got around to installing it, as always the instructions were excellent. My SEX 2.0 was from the first production run and is almost twenty years old. For several years I have demonstrated it in many shows and meets, always receiving complements, until I got the 2.1.
If you have a SEX 2.0 this is a must have, it's like getting a new amplifier. Many thanks to the Bottlehead team for a fantastic upgrade! Here is a photo of my amp:
