What i wrote above is an example of that. Was discussed a lot but a non issue these days (well have not seen an issue in the past 12 months)Maybe, I'm not sure. It was something that affected performance negatively but gave a better SINAD.
What i wrote above is an example of that. Was discussed a lot but a non issue these days (well have not seen an issue in the past 12 months)Maybe, I'm not sure. It was something that affected performance negatively but gave a better SINAD.
Maybe, I'm not sure. It was something that affected performance negatively but gave a better SINAD.
D90SE uses a switching power supply. Does it have a negative impact on sound quality?
There are no problems with recent switching power supplies. I prefer it to transformer power supplies.D90SE uses a switching power supply. Does it have a negative impact on sound quality?
Why?There are no problems with recent switching power supplies. I prefer it to transformer power supplies.
The measurements suggest not.D90SE uses a switching power supply. Does it have a negative impact on sound quality?
Topping puts a lot of development effort into all devices with switching power supplies to ensure a very clean supply voltage.D90SE uses a switching power supply. Does it have a negative impact on sound quality?
So they got around all of these noise points with the Topping devices?Topping puts a lot of development effort into all devices with switching power supplies to ensure a very clean supply voltage.
It is difficult to achieve this with conventional power supplies, but above all it is expensive and takes up space.
I too have had to revise my opinion on this in recent years.
You didn't read my signature, did you?So they got around all of these noise points with the Topping devices?
I don't know it so well, I'm asking because I'm considering a purchase of a Topping DAC and realistically want to understand because in my experience Switching Power Supplies are either noise or become noisy over a short period of time. That's what I have seen in the real world but all designs are different so who knows what they have done, I guess at this point we just have to trust they have done the right thing with a known common issue.You didn't read my signature, did you?
Because I didn't say anything like that.
If you know it so well, then take a look at it for yourself.
They may be thinking of SMPS systems in PC's and relate to those big old things that in fact are very noisy but also very cheap unlike a well thought out design with filtering shielding and decoupling with a well throughout layout.Clearly tests show that that the SMPS has no adverse effect on the DAC in question and yet the audiophile forums are awash with unsubstantiated comments that SMPS affect sound quality and that even if the powered device is unaffected apparently they know that the noise from the SMPS affects other equipment in the chain.
Despite this noise being measurable, such groups never offer up any evidence, but of course they can hear it!
I am quite accepting that that a device can generate unwanted effects, but for goodness sake those making such claims should first consider presenting some facts, not asking/demanding that others simply believe their assertions.
I don't know it so well, I'm asking because I'm considering a purchase of a Topping DAC and realistically want to understand because in my experience Switching Power Supplies are either noise or become noisy over a short period of time. That's what I have seen in the real world but all designs are different so who knows what they have done, I guess at this point we just have to trust they have done the right thing with a known common issue.
Why?
All the problems you mention here would also be seen in the very good measurements by Amirm and many others on ASR.I don't know it so well, I'm asking because I'm considering a purchase of a Topping DAC and realistically want to understand because in my experience Switching Power Supplies are either noise or become noisy over a short period of time. That's what I have seen in the real world but all designs are different so who knows what they have done, I guess at this point we just have to trust they have done the right thing with a known common issue.
There are lots of hoary myths about the inadequacy of switching power supplies. In many cases, a well-designed SMPS can outperform a comparable power output linear supply, even in a power amp. The Benchmark AHB2 is a premier example. In the case of the D90SE, the numbers don’t lie.D90SE uses a switching power supply. Does it have a negative impact on sound quality?
Funny I was just looking at the AHB2 as an AMP for my bedroom setup, I hear those are very good for the money and the only reason they are inexpensive is that they are the first and only to come with that THX certification which will at some point put them on the map I hear. I also hear they are so transparent almost to a fault is what is said about them with zero coloration, could be a a negative in some folks eyes.There are lots of hoary myths about the inadequacy of switching power supplies. In many cases, a well-designed SMPS can outperform a comparable power output linear supply, even in a power amp. The Benchmark AHB2 is a premier example. In the case of the D90SE, the numbers don’t lie.
There is a review on ASR.Funny I was just looking at the AHB2 as an AMP for my bedroom setup, I hear those are very good for the money and the only reason they are inexpensive is that they are the first and only to come with that THX certification which will at some point put them on the map I hear. I also hear they are so transparent almost to a fault is what is said about them with zero coloration, could be a a negative in some folks eyes.