So I recently started on a second Aion Blueshift build and was in the process of drawing up a shopping list when I noticed that it calls for OPA2134s for the input buffer and pre and post filters, although the build docs do note that a TL072 will work fine (as will any other standard dual opamp most likely). Now the OPA2134 is certainly a fine opamp, but is it worth it here? The original Boss DC-2 definitely didn't use them and people seem to like them just fine, and I'd rather not spend $5-6 per chip when a sub-$1 part will work just as well. Is the lower noise floor and "clarity" that audiophiles rave about really worth an additional $8-10 in a guitar application? Interested in hearing everyone's thoughts.