No.
If they are better or worse than other manufacturers I don’t know, and in terms of measured values of SINAD and other things they can probably be trusted. But in terms of functionality there have been issues. Some people have encountered problems with Topping's relatively recently launched D30 Pro. Including me. So I will not buy a Topping product again until it has been on the market for a while. There have been some problems for some of us who bought the D30 Pro. Some of these errors will, as far as I understand, be fixed with an upcoming FW update. As for the problem that the D30 Pro does not work with some CD players, there is apparently no solution. But that the later is really a problem, as far as I know, has not been officially admitted by Topping. The answer we got is probably rather that there is something wrong with the CD players because they have too much jitter.
The issue has been talked about a few times in different threads including this one.
Yes I know. But if someone is asking if there have been issues, I think the correct answer is yes. Or is it your opinion that anything I wrote is not correct. Did I miss something? If i did then please correct me.
No no no. I wasn't saying you shouldn't say there is issue. Just I don't quite get your perspective as you have read my comments on this issue. This CD player issue is a very wide spread issue just only after ak4118 shortage it became prominent. Fiio, SMSL, Gustard and us all have some devices with the issue. X16 apparently has the problem too but no one complained. And the issue doesn't not appear with D90se.
I have tested with 5+ cheapest usb to spdif converter. No issue. The poor quality of the output signal of the CD player is the more major cause of the issue.So funny that a lot of modern DAC's still seem to have issues with more than 30-year-old digital technology (referring to IEC958)
Where is the regression testing guys? It's easy to claim good jitter performance if the only sources you work reliably with are low jitter in the first place
In a sense, I really can't blame you (or your company) personally for this, and it definitely wasn't meant as a (personal) attack. Your obviously not the only one having issues. Seems like modern SPDIF receiver chips are not as good as the old ones in handling certain sources for some reason.
It’s a bit more complex than that. For absolute best jitter performance you need to set up the PLL in the receiver with a narrow lock range, but that means it will reject signals that already have loads of jitter embedded in them. Older receivers had a wider lock range and better compatibility, but as a direct consequence also displayed poorer jitter performance.Ya did the wrong tests then
The PCM stream is unaltered before the DAC.
thank goodness you are not. all of this discussion is important as far as ive seen. talking about DAC jitter with CD player not working on topping sometimes and all over convos are on topic even if its not directly about this product. unless it totally derails a mod should let things like that go for a healthy forum with "less" bias.
because its a DAC not a streamer. there are difficulties with streamers especially high performance ones. you have interface screens creating distortion you have CPU possibly or GPU for graphical interface to operate streaming funtions. more power filtering is needed and more power, more complexity and antennas . it would also cost like 2k. its best to just have a dac with a clean USB input from something IMO. streamers are for the living room or kitchen or outside. not hardcore listening . unless you mean server or PC .
