Burson V6 Vivid and V6 Classic Discrete Audio Opamps Discussion and Reviews
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mikaelmark

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I hav´nt had any big issues removing the DIP-socket protection - only when I used some heavy force to it, the reddish enclosure came off on a few of them. Normally, I´m using only my fingers te take the protection off.
 
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mikaelmark

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Listen right now to Tidal with MQA Master, using my modded China DAC with AK4490 without upsampling and Burson Vivid; the sound is SOOO transparent, clear, airy and bassy!

The AK4490 are famous for it´s "Velvet sound", with it´s loudness like sound. However, it sound really nice to me!

I also has a DAC with WM8741 with upsampling and also this has a Vivid, and this sound is more 3D and voices are more pronounced/in the face.

And my AK4399 DAC with New Class D OpAmp (really expensive and huge sized OpAmp!), are very clean, detailed and engaging sounding but not really anything special to mention. Just a good sound!

When I compare all above with my Arcam CD192 with WM8740 and also a Cambridge DAC Magic and also a Harman Kardon HD970, all modded with THS4031 OpAmp´s and with upsampling, their sound are flat, boring and very bassy - no fun or engaging at all!

So, my verdict: Many people claims the differences between DAC chips are very small and the differences between OpAmps are much bigger. This may be true, but however, I can distinguish rather big differenses also between DAC´s. And Bursons V6 -serie are very good and affordable (compared to the rivals below). And I favor the Vivid with it´s detailed and crispy and clear sound compared to the Classic, with it´s warm and dull sound. If we talk about amp´s, such as headphone amp´s, my favourite are SparkoS SS360x with pure Class A and a very detailed and nice sound with extended treble! If you´re wallet are thin, and you really want to enjoy the world of discrete´s, the Orange discrete OpAmp from UK may be an alternative!
 
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mikaelmark

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Today I swapped out the AK4490 DAC to the AK4399 DAC, that I recently modded with some "Snubbers", and right now listening to the free french FLAC-streaming Frequence3, really enjoyable with pure CD-quality!

Usually, a DAC or Amplifier - schematic are designed with a Power stage with at least four Rectifier diodes, preferrable BYV27. But as those may introduce some noise to the sound, a cure is to add a small non polarity plastic or ceramic capacitor in parallel to each diode, sometimes combined with a resistor in series.

But as this way will generate ringing to the signal and also pass some AC (more with bigger cap values), there´s another way to go; "Snubbers".

This is a small capacitor with a resistor in series, connected between each of the transformers secondary windings. This way, there will be less ringing and less noise with an optimal DC-signal. It has been measured with an oscilloscope, that a value at about 0,33uF combined with a resistor at about 330Ohm in series, will be correct values for most DACs and Amps.

In my case, the DAC has three windings with seven secondary wires going to the board (PCB); 15-15, 15-15 and 9-0-9. So I soldered three Snubbers, one for each windings (for 9VAC, I used only one Snubber, but it´s possibly to use two instead).
 
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numon

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hi
i really wonder that
any advantage of this tall design to other small opamp chips design?can be reachable v6 vivid sound performance by small desgns opmap also?
 
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Dartin Bout

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I don't know. Burson hasn't made the V6 Vi low profile. The V5 is though. I am sure there are different flavors and sizes of op amps available. I've been swapping opamps for years in a 7.1 Auzentech card and having fun trying such relatively cheap gateways to better sound. I just now happened to be looking to trying some different op-amps on my Deven DVD-3910.
 
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adeadcrab

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Just swapped from the Vivid to the Classic in the preamp after getting a new DAC - this is it! The Elex needed that little bit of warmth - a poor man's tube preamp?? :gs1000smile:
 
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I really like the classic myself, an enjoyable opamp!
 
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Dartin Bout

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I've been going nuts with the Vivids\Classic. I got a Asus Stix II and mounted 9 dual V6. 6 Vivids and 3 Classic's. I just bought a Topping DX7 Pro and I'm ordering 2 more dual Vivids'.This quarantine is going to empty my bank account but my ears are overflowing with joy.
 
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bcschmerker4

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@Dartin Bout The Vivids in the I-V's and the Classics in the line-level buffers, I presume? Sounds as though ye've the STX II 7.1 package with an H6 daughtercard. I've a pair of V5i's under consideration for my STX's I-V.
 
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Dartin Bout

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I'm just starting to mix and match. I'm upgrading from an Auzentech Meridian with 3 dual Vivid's but the PCI slotted card won't transfer to the new computer I'm building.
 
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