The test took me a while but it was worth it. Here is my review regarding some opamps Burson Fun V6 Vivid review It feels like the opamps were existing forever yet they still seem to receive very little attention. Personally it was a double 'edge sword'. In one hand opamp can improve amp's sound quality but on the other we cannot assume that every opamp just fits into any amp you can imagine. Pretty much the same can be said about the DACs where selecting 'the best' DAC chip doesn't mean the whole device will automatically be great. Nevertheless I was very curious about the greatness of Burson's V6s' thanks to this forum's members. Without having any possibility to test which one to pick I thought maybe Vivids could be worth a try. To make my test a bit better I've decided to compare V6 Vivids to AD797, OPA1611 and the stock 5534Ds V6 Vivid Single After receiving the Vivids from Burson Audio the opamp replacement was smooth thanks to Burson's amazing design. Apart from screwdriver no other tools were required and it was straight forward. According to Burson Audio's support Vivids have 100 hour burnin time. This was pretty much the only reason why it took me this long to write this review. After spending solid 100+ hours of listening different music using Spotify Premium and Tidal Hifi I could finally test and compare V6 Vivids to the other opamps. The most important thing about the whole operation is the sound itself and is there enough difference to justify the price. After spending hours of listening to different songs and records I have to admit there were moments when I just couldn't notice much difference in any. But that wasn't the whole story. Depending on the record or song's mixing I could definitely hear some differences. V6 Vivids have in my opinion very balanced sound (used with Fun) without over exposing any sound characteristics. The bass was just right, mids were good and the highs were just about right without going too high especially while using Beyers DT 1990 Pros. V6 Vivids brought a bit more detail and separation in already very good sound of Fun Basic. AD797 - Probably the second best opamps out of these 4. These are (in my opinion) very very close to the V6 Vivids but maybe slightly too bright. The difference can be heard at some rock songs where the symbals are mixed with high volume. The soundstage is maybe just a bit narrower compared to the V6 Vivids. OPA1611 - Solid third position. Very good opamps used on eg. some very appriciated in some quality DACs and DAC& combos. The sound itself was maybe a bit too 'sterile' in my opinion. It was a bit smoother than the V6 Vivids'. I wouldn't say it's any weaker but rather a bit different. Stock opamps 5534Ds - Very solid fourth position. I was so much prepared to write 'it was a crime to release Fun Basic with these opamps besides V6 Vivids' but I just can't It would be too harsh considering how good these really are. The sound itself was smaller than V6 Vivids' and in some acoustic songs it felt like the singer is closer to your ears compared the V6 Vivids. This can also be a matter of personal preference but in general V6 Vivids definitely had more detail and better soundstage. Again very good opamps but the V6 Vivids are stealing the show here. The verdict So are the V6 Vivids worth the hype and price. Yes and no. If your budget is very strict I would say go with Fun Basic and upgrade from there. The beauty of Burson's products is that only sky is the limit in terms of hunting that special sound very few other brands can offer. Opamps' sounds are very personal so there is no silver bullet which one is the best or above everything else. Get Fun Basic and start the jurney in your personal pace. If you can afford Fun V6 Vivid then definitely go with it. You will save plenty of time avoiding opamps orders and such because you will already have one of the most advanced opamps ever built. Burson has spent years in developing V6 opamps and we can only imagine how many other opamps they were measuring and testing in their labs. I'm not aware that there are any fake versions of Burson's V6s' compared to some like OPA627, MUSE and many others. If you decide to start your opamp jurney make sure that you are ordering them from valid distributors otherwise you will just be wasting money on electornic waste. Thanks to Burson's decision to make opamps swappable. I can only imagine what will be our next stop when they release something as fun as V6 Vivid opamps. Cheers!