Supreme Sound Audio discrete Op-amp upgrade

[unnerv]

Guys, thanks for sharing your projects and keeping the conversation going. Can't believe it's been 2 years since we started this thread. If anyone would like to try any Burson opamp (V5i, or V6) please let us know your project and we will arrange a free sample.

Hi Charles,

I had come across this while trying to find a good comparison of the v6 classic vs vivid. I just recently acquired a pair of hifiman he-4xx phones and have them paired with a little dot 1+. I have started tube rolling and currently have upgraded the stock tubes to Voshkod 6ZH1P-EV with some Mullard 8100 on the way to try next. I am pretty new to this game but researching opamp rolling on the littledot 1+ seems to be another step in the adventure. If you have any recommendation as to which would compliment the setup best I would welcome your opinion. I think the tubes give some warmth and texture, so I was leaning towards the vivid. There were some older reviews of the Littledot 1+ with the V5, and while it didn't fit with the cover closed, it sounded like it was an amazing upgrade over stock. I am not opposed to milling out the aluminum case to fit taller opamps.

It looks like the stock opamp is an MC33078N


Little Dot exposed


Gratuitous glow shot

[unnerv]

Charles replied via PM to me, but I got impatient before he had a chance and ordered a V6 Vivid in the meantime. Unfortunately Burson was out of stock at the time, but I finally got it last weekend. I have only had a couple of hours but it is definately a big improvement over stock. I need to give it some time to break in before I make any real comments, but I will say that it made a really big difference in tightening up the bottom end and everything seem more accurate already. I already feel it was worth the price paid, and I am looking forward to it getting even better.

Here are a few pic I took of the install


Stock IC replaced. This thing is pretty tall. The cover definately was not going to close over this.


After some careful measuring I marked the center point of where it should end up poking thru. I stepped up drills from 1/8th inch (~3mm) to 1/2 inch (~12-13mm) then broke out my file set and carefully widened the hole it out and squared it up nice. After about 20 min of careful filework I test fit and got it in one.


The v6 vivid stuck out a tad longer than the feet. I placed some washers under and just had enough threads left to screw the feet in.

Hi Charles,

I had come across this while trying to find a good comparison of the v6 classic vs vivid. I just recently acquired a pair of hifiman he-4xx phones and have them paired with a little dot 1+. I have started tube rolling and currently have upgraded the stock tubes to Voshkod 6ZH1P-EV with some Mullard 8100 on the way to try next. I am pretty new to this game but researching opamp rolling on the littledot 1+ seems to be another step in the adventure. If you have any recommendation as to which would compliment the setup best I would welcome your opinion. I think the tubes give some warmth and texture, so I was leaning towards the vivid. There were some older reviews of the Littledot 1+ with the V5, and while it didn't fit with the cover closed, it sounded like it was an amazing upgrade over stock. I am not opposed to milling out the aluminum case to fit taller opamps.

It looks like the stock opamp is an MC33078N


Little Dot exposed


Gratuitous glow shot