burdie
100+ Head-Fier
- Joined
- Oct 24, 2013
- Posts
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- 30
Hi again,
Looks like I did it after all.
PROS:
- BURSON V5-D are definitely having a lower noise than original HPA-3B's op-amps, so great job BURSON! These are definitely the lowest noise op-amps I ever tested.
- I liked women voices and instrument separation a lot.
- Cymbals sound a bit more clean and natural with V5s.
NEUTRALS:
- Details are about the same as LME49860, with just a slight advantage for V5s (BURSON V5 did a great job in revealing more details and clarity with my Objective2 amplifier: http://www.head-fi.org/t/616331/o2-amp-odac/4965#post_12382477).
- Sound-scene is about the same as original op-amp, but I'll test this again the next days and get back to you.
CONS:
- Need to replace power regulators for decreasing the voltage from +/-18V to +/-15V, otherwise lifetime of V5s will decrease.
- Height is 2 mm more than it should be to perfectly fit inside HPA-3B, so you'll need to remove the DIP-8 sockets and solder V5s directly onto motherboards to fit the case
- A bit pricey (about 25% of the price of Matrix HPA-3B).
Note: Many thanks to BURSON for providing these solid-state op-amps for this test!
Will get back here when I'll have the time to compare more op-amps and more songs,
Raul.
Raul, you did it again. Any further update on the listening?
Since you got very good soldering skill, would you mind to do one more thing on V5? since V5 is 2mm taller even you remove the dip-8 socket, will it be able to fit in the case if you diy a L shape dip-8 socket (extend the pins and bend it down for 90 degress) and lay the V5 to the left and right. or may be relocate the 2 big cap...