try Kernel Streaming gives something more in the sound
instead of asio
instead of asio
Looks like firmware bootloop. It may need firmware reupload. If your unit is under warranty I think you should sent it to distributor.Help needed
I'm using a PC to play music via Gustard to the Pegasus DAC via I2S. Play music with roon software. Sometimes there is a phenomenon where when listening to an album and playing songs from another album, the music is stuttering. Turn off Gustard and turn it back on and it's gone. Does anyone have the same phenomenon as me?
optimize Gustard u18
amir wrote in about cybershaft review
It is amazing how our intuition leads astray. We assume these clocks are like watches where more accuracy is better. Turns out we are not at all sensitive to absolute pitch as if we were, no one would be listening to analog sources! I can play my music 1% slower or faster (all the time) and you wouldn't know there is anything wrong. What we care about is consistency of "speed" or clock. This type of variation causes jitter. So the fact that an external clock is "above controlled," stack over time, etc. is of no value. What matters is that it doesn't vary over time. As I explained above though, the best way to get consistency is with an internal clock right close to the DAC, not one across feet and meters of cabling. At best, such an external clock can match what is inside. At worst, it will make it perform worse as we see in the case
but not the whole truth
bought Mini-Circuits 141-12BM+ 50ohm cable 12 inch or 300mm
paid 60 dollars for it at mouser
https://www.mouser.dk/ProductDetail/Mini-Circuits/141-12BM+?qs=xZ/P%2Ba9zWqbP1SfIP0oldQ==
https://www.mouser.dk/datasheet/2/1030/141_12BM_2b-1699951.pdf
the coax cable core silverclad on copper
Minimizes signal reflection and VSWR ripple contribution
you take from 10mhz coax output to gustard input coax
this piece of 12 inch coax cable is important with silver clad
optimal connection
Capacitance must be down to 15-18 pf for coax cable of 12 inch
important for the sound
we enter gustard u18
2nd generation clock Synthesizer with ultra-Low noise.
Support external oCxO.
K2 can generate the audio-specific frequency using a 10Mhz clock source with extremely low loss
the less loss, the better the sound
so you can say that 10mhz clock is as good as Accusilicon as338.
but has phase noise and better fs gives better bass midrange and treble
Finds things to put in laptop holo Titanis and iFI Defender puts in external power for
the sound now is fantastic, better bass, the midrange is clear, the treble is top class
much better 3d
they have the same fuse values as U16?Hi,
I took a quick decision and ordered the new Gustard DCC or USB interface when I heard it was out. I am a fortunate owner of two well working U16's which I find a very-good-value-for-money-performer and not to forget, with the possibility to use with external XO. The U16 uses the regular but very good Accusilicon XO's AS318B and as said, with the possibility to use an external better clock if You have, or are planning to get one. The new U18 uses selected higher spec XO's from the same (Accusilicon) brand and also have a reworked clock synthesizer for the external XO. The U18 also has a well thought through internal galvanic isolation, high performing USB receiver chip XMOS216. So based on my earlier very good experiences I "snatched" one of the very first U18's, I guess. Ordered the 12'th of november and living quite far from China I was almost shocked when the box from China arrived today.
As usual they pack with good protection. I have it put into work, warming up and for burning in for a period of at least two weeks. It is now running on internal XO's and it sounds very good already.
I am using the U18 for the moment replacing my Audio-gd DI20HE, feeding the Audio-gd R7HE Mk2 into my main rig HE7, Master 3 and Master 2's, Quad ESL63+Gradient SW63's. It is a brutal, neutral, revealing rig so it is easy to spot what's going on. Here is a few pictures. To be continued...
/Jan
I would say that I2S sounds best but it doesn't mean that non of improvement can be noticed with SPIDIF or AES.From what I understood so far, U-18 is giving best results when used with the I2S output, and AES might not even make any difference- this is confirmed many times, by different users.