Hi all
Last month I recieved Burson V5i dual opamp product for testing.
First of all, a big thanks to bursun audio especially
Charles that provide this chip to me for testing.
I tested this product and then sent it to my friend to have his expriences.
Our tests, me and my friend, are carried under different conditions, with different components and different wires, I Use
silver-plated wire and my friend have
copper one
These results are obtained when
break-in time passed and sound became stable
These are our impressions that bothly agree with, in spite of diferrent testing condition that we have.
at first I put this chip in input stage of my amplifier and encounter with tempreture rising of chip, it reached aproximately up to 75 degree celsius, really hot, and sound became distorted
I emailed to burson and they said this situation is not normal and may be due to weak connection..
anyway, I got rid of this problem and my friend didn't have any issue with implementing this chip.
Compare the heat 627 :
We think this is a
high resolution chip. Sound is
dynamic especially in
vocal.
So
soft sounding chip that fits for long listening without fatigue.
In terms of sound stage, we believe this chip has
soundstage, best part of staging in this chip is percepted at mid-range but soundstage at mid bass range is crowded and messy.
Low frequency is back-bone of staging and any flaw in this range could have defect in sound image.
When chip is cold, it sounds more organic and soft, stage at mid bass is acceptable, mid bass is punchy, vocal is a little backward and high range is a bit polished and soft but after the chip is warmed up low frequencies become a bit messy, vocals become more clear and in position and high range become more powerfull, sterile and clinical.
In spite of using ceramic caps, we didn't find any
piezo effect on sound.!!! This is very good.
TDK ceramic is good, but we intrested in
film capacitors,
Vintage and
Vinyl Style
This is a high class chip with clear sound, details especially in mid-rang is very dynamic and enjoyable.
Best regards,
Afshin
