Dracule1-
Fair inquiry without a doubt.
I did not pop the hood on mine. Others have done so. I have heard earlier TRL Sony mods used more dampening material than later as they determined what amount was actually effective/needed per specific units. One guy in a thread on AA stated the work looked high quality, but was not specific. Maybe someone who has examined theirs closely can comment.
I have not heard anyone express concern about implementation-but TRL also is not sticking significant aftermarket new or replacement parts into the stock units so there is less likelhood of cramming stuff into space that was not meant for it. If anything, they take stuff out in some places but I don't really know.
Again, my impression from direct comments from Paul, and professional review info without knowing exact specifics is that their approach strengthens the transport, clock, circuitry, and power supply and shortens the signal path. It is more an enhancement than additive/re-engineering deal.
This modding thing is as much voicing skill IMHO as much as parts or wholesale technical changes. Maybe I am full of it, but really parts are not that pricy in the digital world.(I am an authorized computer reseller and builder). Parts are likely not the big expense in mods. The cost is in the hours in the design and creative process and labor.
Now that is not to say that if someone actually builds a proprietary component for a digital unit that they are not going to then charge what the market will bear.
If you are looking for a boatlad of new caps, a proprietary clock, and added tube stages and external power supplies-these guys are not your modders.
Their approach seems to be a marked difference from the additive or re-engineering modding school.
Both are obviously effective for people depending upon what they like and want and also how much they believe in a specific design approach.
Choices for the end user are good as is the market price competiton.
What I was told by another user is that after Paul's mod design on a unit, they use the same technicians that build their multi-thousand dollar preamps/amps and signal processors to actually do the mods.
That would be a good thing if accurate.
