Tír Na HiFi

Here's a question for people like Nige and Randy who have extensively modified Soekris DACs (mostly with LiFePO4 supplies) and are now playing with the DAC in this thread (with UltraCap supplies). My last mod to my Soekris setups was a last hurrah before I started playing with LiFePO4 and UC supplie...

Patrick, The impact of the ER is exactly the opposite of what you don't want. No sense of glare, hardness, and the overall sonic palette is definitely not bright, yet still very detailed and delicate yet dynamically impactful when appropriate in the highs. It is what I hear with any lowering of both...

Looks like I'm going to be the odd man out again. I tried putting a pre-charged Ultracap pair at the output of Ian's LiFePO4 supply's 3.3V rails to power my Ian GB FiFoPi/DM DAC stack a couple of months ago. AND after his brilliant idea, I tried it again last week. Both times I preferred the LiFePO4...

@tapatrick... Very interesting. We've corresponded before and I've been watching you try different front-end options for your PSA DAC. Glad to know that the Windom upgrade to that DAC was such an improvement. I wonder how much more they can wring out of that setup? Also, what are you using for the I...

LOL... there's always something else to try. BUT one way I know a particular setup is working right is when I get wrapped up in the music and forget to notice the sonic qualities. I just finally applied the configuration tweaks recommended on Soundcheck's blog for RPi setups on picorePlayer on my re...

I did further comparisons of a float-charged pair of 350F/2.7V UCs powering both a modified RPi and a stock one in my two audio setups this weekend (continuing point #4 above). The results were 'interesting'. Not in that there were not good results, but they weren't always what I expected. LOL, this...

jrling and randytsuch, Thanks for your informative posts. They are invaluable! Some comments... - All of my UC setups use or are based on Ian Canada's UCPi boards. I have 3 of them here, which are introduced in post 163 and details including schematic are in post 187 of this thread: https://www.diya...

Jonathan, Thanks for the very informative response. Also thanks for the positive comment on my post... mostly I just get TLDR! You reminded me of some areas that I've had on my list to try, but haven't as yet... - Powering my player RPi from an Ultracap-output supply. Up to now my best power solutio...

A very impressive project... following closely! A question to those who have heard this beast... I've also been using Ultracaps in some recent power supply setups. I have 3 of Ian Canada's UCPi boards and originally built them up using the Nesscap 325F/2.7V parts (which I think are the same units yo...

Yea, at a lowish charging current this will work but I tested charging at higher currents (2-3Amps for faster charge up)& it's on the borderline of balanced - the 1K resistor just doesn't pass enough current to maintain balance. I will be experimenting with a lower value/higher current resistor...