@tjag Sorry I cannot help too much with that comparison (before and after mods). I only had the unit in my home for 1 day before I sent it out to Ric for mods. He had done a prior mod for my now sold LSA Voyager GAN 350 and I had confidence in a improved GAN1 sound after mods.
There were 3 people that posted on A’gon about the stock GAN1 around the same time as I got mine and 2 did not like it at first. I was the only person that liked it with my RAAL SR1a and amp adapter box.
I never planned on using the modded GAN1 with my 2-channel office speakers, but here I am not doing just that.
I just came back from a 1 week vacation and turned on the GAN1 this morning. Man, this thing sounds so good.