by jesper » 25 Mar 2017, 17:40
by jesper » 26 Mar 2017, 18:42
by jesper » 27 Mar 2017, 23:04
by jesper » 31 Mar 2017, 13:33
by hondagx35 » 31 Mar 2017, 13:49
by Stephane » 31 Mar 2017, 14:01
Hello,This means that the capacitors above did the trick of very much reduce jitter of the RPi.
by DJ le Roi » 31 Mar 2017, 21:30
jesper wrote:Ok, an update on the Allo Boss DAC:
I kept playing it now for a while, but still up in about 20-25 hours, so it´s not yet run enough time for final decision. I can say it´s improving, but the mid range and voices I'm not satisfied with.
I decided to look into the Boss DAC's analog power and found that the DAC uses 3.3V, not 5V. this means there needs to be some proper capacitor to stabilise the 3.3V as well. Out with the DAC and solder another capacitor onto the board
I took a polypropylene capacitor of 1.5uF (ICEL MPL 160V K5 1.5uF 1%) and soldered it to the Boss DAC board at the big capacitor located between the PCM5122 and the left (white) RCA. It looks blue and yellow on allo.com's pic of the Boss DAC.
Now, the troubles in the mid range and voice are gone and the sound opened up - just an amazing improvement!
Now the sound is already fantastic! Wow!
So, the power supply of 3.3V MUST have a bigger, better capacitor to get the ALLO BOSS DAC to perform better in the mid range.
Now get out your soldering iron and a few capacitors and rock the place! I´d like to hear from someone who dared to try this tweak too. You won´t regret it (unless you don´t know how to solder)!
by jesper » 31 Mar 2017, 23:34
by jesper » 01 Apr 2017, 00:09
by jesper » 01 Apr 2017, 00:14