taken from the LP site:
"Even the best amplifiers can perform and sound better with a little help. Here's what you can expect:
These modifications improve dynamics, channel separation, musical detail and information. You can also expect a greater signal to noise ratio, better sound stage and image, smoother midrange, more natural overall sound, more headroom and damping factor, softer clipping, extended low end response and more power output.
The power supply fets are changed to parts with double the current capability of the factory devices, the storage capacitors are changed to parts with over double the storage and filtering than the stock components. The transformer's current and voltage capabilities are also increased. The pre-amp and output stages are also refined and improved with various additional parts and part changes to improve the overall sonic capability of the amp. "