There will be a couple of levels of mods for the digital section of the Transporter.
The first, which was done to PLMONROE's unit involves upgrading the power supplies for the clock and digital output section. This will improve the analog section by providing the DAC chip with a cleaner signal.
The AES output of the Transporter can also be improved with similar upgrades.
The AC inlet of the unit can be upgraded and additional noise reduction added to the AC line.
The analog section, which is what some people don't care for, can be bypassed and the signal run direct from the DAC chip, similar to what is done in the SB mods.
A new analog section can be installed. I have both a solid state version, based on the BOLDER Buffer, and a single tube version.
Please contact me by E-mail or PM for more details.
Thanks for your interest.