UPDATED ON February 23, 2019 Carlos (Burson Audio representative) has kindly offered me a free trial of the Burson V5i op-amp in return to my honest feedback. Burson Audio is famous for its discrete V4 and V5 op-amps, but many applications cannot accommodate them due to their larger size. Thus, they made the V5i which is smaller comparatively. I would still prefer an even smaller size, i.e. to use it in Zishan DSD. The V5i can be used to substitute for many op-amps of different models. A nice bonus provided by Burson Audio, an Australian company...