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The Opamp thread
Jan 25, 2021 at 5:13 PM Post #7,067 of 7,383
Onik said:
you could buy SS3601 for buffer and use more extra dip-8 extension for the pro op amps to make it taller , then you might not need the wire extension sockets which looks funny.
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I would be careful replacing a buffer chip like the 634 with an ordinary opamp like the the Sparkos Labs SS3601. I have talked to Ray Samuels for my Apache as well as Andrew at Sparkos Labs and buffer chips like the OPA634 are different. Neither recommended a replacement for the 634. As such, I have not swapped those out.
 
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Jan 25, 2021 at 5:20 PM Post #7,068 of 7,383
Onik said:
I know but most op amps they sell are dodgy.
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That is why I am asking. In my country, a few years ago I was able to buy the LME49720NA and the LME49720HA from local online shops. Now I can only find the LME49720NA but for SMD mounting.
I wanted to open the ACMEE MF-01 to change the "Muses02" for the Burson V5i, but it doesn't fit. I've tried it with several sockets to see how it works. I also tried the LME49720NA and LM4562.
This DAP comes standard with the Muses02, I don't know if it's original. But I felt that its sound was a bit dark and soft. After switching to the LME49720NA its sound became more analytical and clear, as I like it. But I found the LM4562 a bit softer, even though many people here say they are the same... I found the V5i somewhat brilliant, but I didn't stay with it for long, so as not to get infatuated, because it doesn't fit.

I've been tempted to buy here, but I wanted to ask you guys for your experience.

https://hifivvaudio.es.aliexpress.com/store/group/Doble-OP-AMP/1799190_501911048.html?
 
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Jan 27, 2021 at 3:02 AM Post #7,070 of 7,383
Jan 31, 2021 at 7:43 PM Post #7,071 of 7,383
Not his fault if he did not know, though now he will.
 
Feb 21, 2021 at 6:15 AM Post #7,073 of 7,383
duranxv said:
That's really helpful! Thanks! I'm more of a basshead myself, but I do appreciate clarity and detail too - would love to get your impressions on the Burson V6 vivids and the Sparkos 3602's when you get them!
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Actually some more thoughts. I sold Hi end hifi while I was at uni circa 1990. I'm a music lover not an audiophile but the gear and all that surrounds it intrigues me.

What I chase is gear that 1) gives me the same emotional response as a live performance, and 2) is as accurate and detailed as possible.

I think that speakers/headphone choice and amplification are the two most important aspects of bass performance. Then source. In my experience an amp with plenty of power and a high damping factor will grab a pair of speakers and give you the best bass extension and impact. I have a pair of Dalisuite 3.5 tower speakers rated about -3db at 30Hz. I have an excellent Marantz PM80 amp, 20 wpc class A switchable to 100 wpc class AB. It is a beautiful amp, and currently is running my dynaudio 2 way bookshelf speakers on my home office desk. Plus the headphone stage on it beats so many headphone amps out there. It was great with the Dali towers. But when I switched in a Musical Fidelity nuvista pre and a 200wpc Rotel RB1080 it transformed the speakers. I suddenly thought that I really was getting -3db at 30hz. The dynamic response changed, the transients, the dynamics were so much more like a live performance.

But I would say that the source is probably most important for detail and musicality. But then you need the rest of the chain to carry that to your ears.
 
Feb 24, 2021 at 6:44 PM Post #7,074 of 7,383
Little shot of the Burson v5i inside the XDuoo XD05 plus!

Burson v5i-s

2021-02-08%2009.35.40-X3.jpg
 
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Mar 8, 2021 at 12:30 PM Post #7,076 of 7,383
I've been using the Sparkos op-amps with my Sound Blaster AE-9, and they really rock. My only concern is that the size of these op-amps make a very cramped fit. I tried using some risers to put them on different levels, but even then it's a very delicate set up. Even a small bump will knock any of those op-amps out of their sockets.

Anyone have recommendations of long flexible wires that can create more space between them by having them hang off rather than sit next to each other?
 
Mar 8, 2021 at 8:41 PM Post #7,077 of 7,383
duranxv said:
I've been using the Sparkos op-amps with my Sound Blaster AE-9, and they really rock. My only concern is that the size of these op-amps make a very cramped fit. I tried using some risers to put them on different levels, but even then it's a very delicate set up. Even a small bump will knock any of those op-amps out of their sockets.

Anyone have recommendations of long flexible wires that can create more space between them by having them hang off rather than sit next to each other?
Click to expand...
Yes remind me with a pm if i dont get back to you in 24 hrs. Its all open on my home pc and im out. Trying to fit 2 ideally 4 spqrko pro op amps into a burson conductor 3X ref..
 
Mar 12, 2021 at 5:29 AM Post #7,079 of 7,383
Hello, I want to create a opamp dip8 riser on 5cm wire.
I have some 1,5mm high qiality 20awg ofc shielded cable for that and specially for audio tin-silver for soldering.
I want to create something like Burson dip8 riser but with longer protected wires.
It will work in proper way?
 
Mar 14, 2021 at 11:48 PM Post #7,080 of 7,383
2021-03-15-04-41-23.jpg


Sparkos SS3602 on a Violectric V200

Very noticeable gain on clarity, and pretty much every other aspects of sound

Been waiting to try them for a very long while

Not disappointed :smile:

11451562.jpg


D8000 Pro headphones, and LPG as source

 
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