In my understanding of audiophile experience, DIY is necessary because not only ready made "tweaks" may be costly but they are not always designed for all needs and anyway in acoustic some devices dont exist on the market ( my mechanical Helmholtz equalizer for example) or are very costly...
My audio truth and experience is, when the gear is well chosen, you must deal with the working domensional embeddings of your system: mechanical,electrical and acoustical, then DIY here play the greatest role for me and make sometimes future upgrading pointless or useless or not so attractive anymore...
My audio truth and experience is, when the gear is well chosen, you must deal with the working domensional embeddings of your system: mechanical,electrical and acoustical, then DIY here play the greatest role for me and make sometimes future upgrading pointless or useless or not so attractive anymore...