Yes, that's true. I will thank him[emoji4]
It's a 1541A. I have besides 3 normal 1541A also 3 pieces 1541A - S2. This one is for testing.
Precious dac chips!
I fell in love with R2R dac immediately when I got my first Pcm1704.
No turning back.
I fell in love with R2R dac immediately when I got my first Pcm1704.
No turning back.
gents I'm struggling.
Lifepo 1, pi3, ssd, fifopi 1, dual ess9038qm and bisilek transformers.
Itd worked fine forever. Now I can log into moode, play a song, looks like its playing in moode, but the ess controller says no input.
Any suggestions? Psu is good, all rail voltages are correct, all leds are illuminated as if its playing.
I'm stumped
Lifepo 1, pi3, ssd, fifopi 1, dual ess9038qm and bisilek transformers.
Itd worked fine forever. Now I can log into moode, play a song, looks like its playing in moode, but the ess controller says no input.
Any suggestions? Psu is good, all rail voltages are correct, all leds are illuminated as if its playing.
I'm stumped
For me the tda1541a was a bit of a gamble. It was the first time to build a dac/streamer. Pcm1704 was also on the list but using the tda1541a looked simpler to implement. Never regretted the choice.
Yeah for 1541a with Ian's stuff
Also a big fan. Have multiple 1541a, an S1 and S2. I use the S2 for all but testing. Runs on Ian's FIFOPi, Andre's WTMC, supercaps and lot's of Blackgates. Totally satisfying to me. Pairs well with triodes on all gain stages. 🙂
Also a big fan. Have multiple 1541a, an S1 and S2. I use the S2 for all but testing. Runs on Ian's FIFOPi, Andre's WTMC, supercaps and lot's of Blackgates. Totally satisfying to me. Pairs well with triodes on all gain stages. 🙂
Also looking at Andrea's clock but don't know how to implement it on the fifopi.
Hello Ian (or anyone who knows these things)
I attached a simple schematic that describes my intention of implementing an external clock source in place of the existing clock in Ian's FiFoPi board. The reason for this is that I have a DAC project using some older technology and only clock frequency of 11.2896MHz is supported and it will be used to play 16bit/44.1kHz material only.
The question is will this work with only one external clock source as shown in my schematic?
I attached a simple schematic that describes my intention of implementing an external clock source in place of the existing clock in Ian's FiFoPi board. The reason for this is that I have a DAC project using some older technology and only clock frequency of 11.2896MHz is supported and it will be used to play 16bit/44.1kHz material only.
The question is will this work with only one external clock source as shown in my schematic?
Attachments
You can definitely run FIFOpi with one clock. That clock can be 11MHz.
I would think the preferred hookup would be to connect the clock to FIFOpi and run master clock from FIFOpi to your DAC. I suspect your way will also work, but I know that what I suggest works as that is how I run my system. In my case with 45MHz but same setup.
We know from all the jitter measurements from Ian and Andre that masterclock comes out of FIFOpi without any degradation, so there is no need to connect to both the DAC and FIFOpi.
I would think the preferred hookup would be to connect the clock to FIFOpi and run master clock from FIFOpi to your DAC. I suspect your way will also work, but I know that what I suggest works as that is how I run my system. In my case with 45MHz but same setup.
We know from all the jitter measurements from Ian and Andre that masterclock comes out of FIFOpi without any degradation, so there is no need to connect to both the DAC and FIFOpi.
Thanks for the info. I just hooked it up and indeed it works.
I was hoping that with Ian’s FiFoPi I would have gotten rid of the interference coming from the Pi, but no help. Maybe I’ll need to check my power supplies and grounding schemes next.
I was hoping that with Ian’s FiFoPi I would have gotten rid of the interference coming from the Pi, but no help. Maybe I’ll need to check my power supplies and grounding schemes next.
What are the symptoms of interference from the Rpi?
I think we all agree that cleaner DC to Rpi improves the sound marginally, but its generally pretty good with most basic switching PS to the pi.
I think we all agree that cleaner DC to Rpi improves the sound marginally, but its generally pretty good with most basic switching PS to the pi.
It has been revealed to me that it might not be the RPi causing my interference since I was able to reproduce it with another I2S source. The interference follows in a way the music signal and can be heard only in more silent parts of the music. E.g. in Massive Attack's Angel song in the beginning of the track the "buzz" rides on the low bass signal.
It is some time ago since I'm here, but nice to read that this mod seems to be helpful and positive in other systems too 🙂
I'm also on the same track by using the Accusilicon Clock instead NDK 🙂
This DAC sound amazing in my system. I also suggest to try the different filters of the DAC, it is somehow a possibility to fine tune the sound characteristic in the individual system.
Regards
Marcus
I have a dual 1541 in balanced, nos mode using Ian's fifo2, clock and I2S to PCM boards and Sowter output transformers.
I've listened to various Cd players from Wolfson 8740 delta sigma (Arcam CD73), BB PCM in a Teac PDH01, Techincs Mash Dac and my own dual AD1862 and dual balanced 1865 (using Ian's boards).
I keep returning to my 1541 dac for reasons I cannot explain.
This week I bought a SU8 Ess9038q2m triple input dac from Shenzen Audio on Amazon and I must admit I like the results for Youtube videos using the optical input from my tv.
HIFI Decoder SMSL SU-8 2ES9038Q2M USB PCM32 768kHz: Amazon.co.uk: Electronics
Its a well built product with built in mains psu, so no wall wart needed but the display is too small for my old eyes.
But will it oust the 1541 or the dual 1865 I am just rebuilding?
That is my expeience too. All those xtalls cchd957: ndk. Of that quality are so close that you faster to tweak the sound by working on decoupling than to go from a littke more expensive one like the accusilon...the gap is more marketing and spec for the brain than real improvment imho. YMMV.
I have the SMSL M400, it's very good. The new SU-9 gets highly rated on Audio Science Review also.
SMSL SU-9 Balanced DAC Review | Audio Science Review (ASR) Forum