Cut-Throat
Active Member
- Joined
- Feb 15, 2020
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The following was the quote in the Sound News about the Gustard X26 pro.
"For the current to voltage conversion (I/V conversion stage), Gustard used only discrete components, not a single op-amp is found in its signal path. Its analog Low-Pass Filter (LPF) also uses only fully discrete components biased into Class-A. Again, no cheap op-amps are found in its signal path. This is a crucial part of any DAC, this is the reason it uses two toroidal transformers and this is why it dissipates so much heat."
So, I emailed the reviewer of the Gustard X26 pro and specifically asked him about the statement he had made in the review, and told him that it had been challenged on ASR by a few people. I just wanted to know the facts and felt that he would be interested in defending his review or at least getting the facts straight. Here was his response to me:
You can find all the X26 Pro info on Gustard's website, check it all here: http://www.gustard.cn/?post_type=products&page_id=11515
and here in English: https://shenzhenaudio.com/products/...5-0-xoms-xu216-high-performance-audio-decoder
I used that info as reliable and trustworthy information, if it is not, shoot Gustard an email and blame them for that. I for one, see discrete components at its LPF stage and separately at its filtering stage. You can see them too in my pictures and in the video.
Lets presume for a second that there are indeed op-amps somewhere in there, would it change my sound impressions, even by a tiny bit? Absolutely not.
I wish I would have time to play devil's advocate, but I don't have time for that.
Cheers!
Kind regards,
Sandu Vitalie
Owner & Editor
So, basically this reviewer “does not have time” to investigate the facts. So, I thought I would post my Questions to people that were more knowledgeable than me on the comments section of his review. Sandu Promptly deleted my Posts. As he did not want this discussion on his review.
So I am asking here about the Op Amps in the Gustard X26 pro. Is there any truth to the statement in the Gustard X26 pro? Or is this review have bad information?
"For the current to voltage conversion (I/V conversion stage), Gustard used only discrete components, not a single op-amp is found in its signal path. Its analog Low-Pass Filter (LPF) also uses only fully discrete components biased into Class-A. Again, no cheap op-amps are found in its signal path. This is a crucial part of any DAC, this is the reason it uses two toroidal transformers and this is why it dissipates so much heat."
So, I emailed the reviewer of the Gustard X26 pro and specifically asked him about the statement he had made in the review, and told him that it had been challenged on ASR by a few people. I just wanted to know the facts and felt that he would be interested in defending his review or at least getting the facts straight. Here was his response to me:
You can find all the X26 Pro info on Gustard's website, check it all here: http://www.gustard.cn/?post_type=products&page_id=11515
and here in English: https://shenzhenaudio.com/products/...5-0-xoms-xu216-high-performance-audio-decoder
I used that info as reliable and trustworthy information, if it is not, shoot Gustard an email and blame them for that. I for one, see discrete components at its LPF stage and separately at its filtering stage. You can see them too in my pictures and in the video.
Lets presume for a second that there are indeed op-amps somewhere in there, would it change my sound impressions, even by a tiny bit? Absolutely not.
I wish I would have time to play devil's advocate, but I don't have time for that.
Cheers!
Kind regards,
Sandu Vitalie
Owner & Editor
So, basically this reviewer “does not have time” to investigate the facts. So, I thought I would post my Questions to people that were more knowledgeable than me on the comments section of his review. Sandu Promptly deleted my Posts. As he did not want this discussion on his review.
So I am asking here about the Op Amps in the Gustard X26 pro. Is there any truth to the statement in the Gustard X26 pro? Or is this review have bad information?