Wednesday, September 16, 2020

Review of Burson Audio Vivid V6 op amp in a DIY WHAMMY headphone amplfier

 

Thanks to Burson Audio for the samples of Supreme Sound OpAmp Vivid V6.
Marking on the box: V6V-D-2
It came thoughtfully packaged with 2 DIP-8 adapters. I had already installed such an adaptor in my Whammy.

My build was with the PCBA from https://diyaudiostore.com/. I sourced parts myself and stumbled many times with lots of rework.

Supply: +/- 15 V straight regulators. no LED or voltage divider
Input:  Samsung Galaxy S9 plus. Volume two notches below maximum
Headphones: Sony MDR-7506

Gain with the Vivid V6 seems to be higher than with the baseline OPA2134PA. Gain matching was by ear. I realize this is not as accurate as with instrumentation. This was not a blind test. I heard the songs below with the OPA2134PA and then swapped it out for the Vivid V6, leaving everything else the same.

I had to move surrounding components a little. The footprint of the Vivid V6 is a little larger. Luckily, the box I used is big enough for height. so I'll let it stay a while.

(1) Track 1 Unaccompanied Cello Suite No. 1 in G Major, BWV 1007: I. Prélude
from Six Evolutions - Bach: Cello Suites, Yo-Yo Ma (2018)
(2) Track 4 The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo from Appassionato, Yo-Yo Ma (2007)
(3) and (4) The Hat and The Way I Am, Tracks 4 and 5 from Girls and Boys, Ingrid Michaelson (2006)
(5) Track 2 Künstliche Welten (Praha-Edit) from Künstliche Welten, Wolfsheim (2004)
(6) Track 10 How Deep Is the Ocean (How High Is the Sky) from Love Scenes, Diana Krall (1997)

The sound: there is more detail and more bass. Notes, and instruments are separately identifiable.

After this I continued to listen to many songs with the Vivid V6. In familiar songs, I was surprised, especially at the start and end of songs: sometimes I could discern extra vocals, instruments or notes.

That said, I think I am spoiled by ZenMod's Iron Pre. With that, I enjoy the music without paying attention to accuracy or anything else. With the Vivid V6, with my setup, to my ears, there seems to be something amiss. I don't know how else to say it.

In the words of our resident wise man "this is Entertainment - not Dialysis". It is good to have choices and even better to listen to a few.

Links:
https://www.bursonaudio.com/products/supreme-sound-opamp-v6/
https://www.ti.com/store/ti/en/p/product/?p=OPA2134PA
https://pro.sony/ue_US/products/headphones/mdr-7506
https://guides.diyaudio.com/Guide/WHAMMY+headphone+amplifier/3

"this is Entertainment - not Dialysis" from http://www.firstwatt.com/pdf/art_h2_v1.pdf



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