Yes i was set up just fair enought...all the same, the buttons are poorly pressed, I do not press up and to the right. all the same I will make a 3d print
but all we need Yours 3D print buttons
Yes i was set up just fair enought...all the same, the buttons are poorly pressed, I do not press up and to the right. all the same I will make a 3d print
I installed hell826 and with it the sound becomes more neutral@Mr.HiAudio they looks greate!
My opa2134 are fake or can't work with Z4 in proper way so I put opa1612 because they are same stage as 1622.
I'm very happy with sound.
Sorry, what is RMAA?@cqtek it's really impressive, how about just old good RMAA and Z4?
https://audio.rightmark.org/index_new.shtmlSorry, what is RMAA?
not yet, possibly in the future@Mr.HiAudio do You planing some capacitors?
Do You have some nice sound card in PC ?First a comparison with the two outputs of the Z4 using the Burson Audio Playmate I as a reference (and I always do it this way).
[pic]
Then other graphs that I can measure with REW.
[pic]
The measurements have been taken with the line input of my PC, so don't expect them to be very reliable, except for the frequency response. That's why I don't go out of my way to use something like RMAA.
[pic]
For the IEMS measurements I use an IEC60318 microphone connected to the microphone input of the Burson Audio Playmate I.
I will have about 20 dongles, DACS and other sources, but the integrated sound card in my PC is very bad. I have no interest in doing that kind of testing. Even more so, when I have it on very good authority that an inexpensive analogue/digital converter is being designed for that kind of testing.Do You have some nice sound card in PC ?
Measurement of distortion don't look good.
First testing MOD
6x 100uF 16V Nichicon Gold Audio
5x 47uF 16V Murata MLCC
LPF OPA1612
Thank You it's just test but looks nice.It looks like you have done a good job, I'm very bad at soldering... Why doesn't Zishan release a special version with all the good mods implemented?