BTW, I remember someone adjusted AGen of his S1 and got a lot better performance, I think 2522/2722 also has such potential.
But anyway, AP today is garbage, including 555 - too noisy, too expensive. I swear I don't need APx555 even for free 😉
But anyway, AP today is garbage, including 555 - too noisy, too expensive. I swear I don't need APx555 even for free 😉
Do you happen to know who adjusted it and how to do it?
I mean the performance of the generator is pretty good, but I saw DACs out there that can potentially achieve better results. The -160dB floor for the digital analyzer is darn good, the generator can use some extra love instead 🙂
I mean the performance of the generator is pretty good, but I saw DACs out there that can potentially achieve better results. The -160dB floor for the digital analyzer is darn good, the generator can use some extra love instead 🙂
Well, I call your ADC with ESS even noisier. So ESS with high clock frequencies may hard to go to this figures as using AKM ADC & DAC.
See picture as PN & AN noise of current effort as AKM ADC & DAC...
Even still waiting, for a full functional of your ADC setup dialog, so one knows, what the HW is at Mono or Stereo.
Attachments
Cross correlation seems to be a very efficient method for lowering noise in ADC/DAC measurements.
https://www.audiosciencereview.com/...-influence-of-adc-for-dac-measurements.56123/
REW beta now has cross correlation.
https://www.audiosciencereview.com/...-influence-of-adc-for-dac-measurements.56123/
REW beta now has cross correlation.
Yes, I have them too. But requires non correlated ADC's (even two in master mode) requires some special I2S sync.
I currently deal with dual mono ADC's as dual mono's ADC worked on an older setup. Each ADC's needs to be check at first, as dual mono may not work equal (performance wise).
I currently deal with dual mono ADC's as dual mono's ADC worked on an older setup. Each ADC's needs to be check at first, as dual mono may not work equal (performance wise).
IVX in case, do you have the reference/link to the user that improved S1 Gen? I tried to Google cannot find anything.
If there is a simple mod to can be made I would be happy to perform it! 🥳
If there is a simple mod to can be made I would be happy to perform it! 🥳
gotcha. I will try to look for it thanks for the input thought.
I wonder for example, if the HW of the 2522 and 2722 is the same, and the 3dB improvement can be obtained by simply trimming the pots on the generator.
I wonder for example, if the HW of the 2522 and 2722 is the same, and the 3dB improvement can be obtained by simply trimming the pots on the generator.
You guys really think you can improve those APs significantly by just twiddling a couple of pots?
You crack me up!
Jan
You crack me up!
Jan
Personally I doubt it, however if the HW of 2522 and 2722 are the same, the only difference would be the tuning, but again it is a wild assumptiomn.
This is why I was going to research if someone actually achieved improved performance by tuning the circuit, again I highly doubt it but I am curious to explore this topic.
This is why I was going to research if someone actually achieved improved performance by tuning the circuit, again I highly doubt it but I am curious to explore this topic.
IVX said : BTW, I remember someone adjusted AGen of his S1 and got a lot better performance, I think 2522/2722 also has such potential.
But anyway, AP today is garbage, including 555 - too noisy, too expensive. I swear I don't need APx555 even for free 😉
Hello,
Until now I thought this was a reputable forum. But stupid comments like this make me doubt it. Anyone who has even a little knowledge of audio measurement technology knows what a great machine the APx555 is. For example, I own an R&S UPL and this is also a great machine. The UPL is of course significantly worse than an APx555. But also developed by specialists who probably had 10 times as much knowledge of audio measurement technology as the people who post such crap here. I think every good audio technology developer would be happy to work with an APx555.
Helmut Sell
But anyway, AP today is garbage, including 555 - too noisy, too expensive. I swear I don't need APx555 even for free 😉
Hello,
Until now I thought this was a reputable forum. But stupid comments like this make me doubt it. Anyone who has even a little knowledge of audio measurement technology knows what a great machine the APx555 is. For example, I own an R&S UPL and this is also a great machine. The UPL is of course significantly worse than an APx555. But also developed by specialists who probably had 10 times as much knowledge of audio measurement technology as the people who post such crap here. I think every good audio technology developer would be happy to work with an APx555.
Helmut Sell
Helmut, don't feed the troll.
Jan
Jan
Jan
Well, please keep us up to date on the results of your explorations!
Jan
to be honest, I look at the specs for the APx555B and think, how this could this be considered poor and noisy (same goes for the SYS2722 which is a close performer to the 555B).
Since I am not an expert on this field, I listen carefully, consider the observation and take notes.
I won't look into this anytime soon, but should I find something I will post here. It is more likely that later on, I might upgrade to the 2722 or x555...but it will be much later on for now the 2522 as is a wonderful measurement system and I can personally see the advantage of this machine over a standalone soundcard-based system. I won't comment on performance alone as when it comes to FFT and filtering for low noise measurements, there are a lot of caveats and people at AP do this for a living I highly doubt they come in second to these soundcards based solution.
Here is where it would be great to have someone from AP comment on this and explain why their systems are better than, for example, a cosmo with REW to pick on one, I am sure a lot of considerations would come to play.