companies that modify equipment...opinions

There are others like Grannyring who would concur but it is a leap of faith for sure. It's not for everyone and maybe I have just been lucky with my modded gear.

No interest in Mods, will destroy the illusions to own an stock piece.
Certainly they will no find a leaving on my side.
No car mods either audio...
my 2 cents, i am glad to hear so many of you against it!
Great

And it's still an over the top statement, IMO.

Equipment at any price level might benefit from a circuit modification, but unless the equipment is defective or dangerous to operate no equipment needs a modification.

I agree totally with audioengr in that it CAN be a great way to go but you better do your homework. This is to say that you shouldn't run out and have a mod performed just because of what you read or heard from others. I also feel it necessary to HEAR prior to purchase. The 1st level mod, changing out caps, resistors etc. for different more expensive ones won't necessarily give you a better end result but it is relatively inexpensive and easier to change back. The one area where improvements can be vastly improved are in the power supply as he mentions but this is risky business, you better know who you are dealing with and not be guessing or hoping about the end result. If in doubt DON'T DO IT! Some of the biggest "bang for buck" improvements in an component can be realized through modifications but again, they aren't all created equally.

The real downside to modifications, as mentioned, is that you will most likely not capture your initial investment unless purchasing used and the modifications have been performed from a known and respected business, cavaet emptor!

" a simple tweak almost everyone can do is to replace the cheap cap in series with tweeter with a really high end ones. I replaced the mundorf silver/gold with teflon v-cap in my avantgarde omega duos. the difference is dramatic "

How would that affect the warranty, if applicable.

Most vendors would not want end users mucking with their gear and then requesting support under warranty I would think.