Since you power what is behind the PurePi II is receiving clean power from the UC, that shouldn't matter.
Otherwise, what's the point of it.
But of course, give it a try. Can't hurt.
Otherwise, what's the point of it.
But of course, give it a try. Can't hurt.
It's not much, but it does provide some improvement/change, the small details are more audible and everything comes out a little easier and smoother. this is clearly audible in the quiet passages.
or I'm fooling myself and it's all in my head.
Attachments
Try removing it in a few weeks time.
See if it's still in your head.
See if it's still in your head.
Powering the linearPi with higher input A/C voltage.
Ian has the following sentence in the manual of the LinearPi:
“Someone reported that a higher voltage can make the sound quality better.”
Has anyone experimented with this?
6v AC is the correct voltage to use if you have a high continuous current due to lesser differential voltage for the regulator; meaning lesser heat at the heat sink.
But in my case where I am to power the OPA861, current is not an issue…
I only have a dual 9v but not a dual 6v transformer at hand so cannot really test it…
Ian has the following sentence in the manual of the LinearPi:
“Someone reported that a higher voltage can make the sound quality better.”
Has anyone experimented with this?
6v AC is the correct voltage to use if you have a high continuous current due to lesser differential voltage for the regulator; meaning lesser heat at the heat sink.
But in my case where I am to power the OPA861, current is not an issue…
I only have a dual 9v but not a dual 6v transformer at hand so cannot really test it…
Yes, 9v is ok, at least in my case. I've always powered it with 9V and never had a problem
I have been slowly learning this, and I will be building the DAC soon, but I have a question. I have a bunch of concert DVD's and Blu-Rays that I like to watch and listen to. Can I use my blu-ray player as a transport and send the signal to the DAC? If so, how do I do that. Is that what a receiver Pi is for, and I read in one of the manuals you can use the Monitor Pi to switch signals. And does that mean I use the same input on my pre-amp? I think i know the answer, but if anyone could add some clarity, I would appreciate it.
Hi, I am putting together an rpi5 iancanada setup. It will be used with the fifoma and transport II. The purepi has been fully charged and I am using the 6mm standoffs needed for the rpi5 with purepi. I am using an rpi5 5v/5a dc power supply.
Problem, when booting via the purepi I get the 'insufficient power' message on screen as if I was using an rpi4 power supply (i.e. insufficient amps). It does not continue with the boot process of course. The same power supply works fine when booting the same rpi5 directly via its USBC power input.
Did I miss a step/requirement for using an rpi5 with the purepi? I have tried searching on this forum and wider on the inet, could not find this same issue, apologies if I missed something thats already there.
BTW - I already have an excellently working rpi4 iancanada setup with a purepi, so I am somewhat familiar with the overall main components. Thanks in advance for any help.
Problem, when booting via the purepi I get the 'insufficient power' message on screen as if I was using an rpi4 power supply (i.e. insufficient amps). It does not continue with the boot process of course. The same power supply works fine when booting the same rpi5 directly via its USBC power input.
Did I miss a step/requirement for using an rpi5 with the purepi? I have tried searching on this forum and wider on the inet, could not find this same issue, apologies if I missed something thats already there.
BTW - I already have an excellently working rpi4 iancanada setup with a purepi, so I am somewhat familiar with the overall main components. Thanks in advance for any help.
I have the PurePi ll with the FifoPiMA and rasp5 but no problem here with insufficient power.
check what @miklau proposes.
Are the capacitors and batteries fully charged and confirmed by the onboard LED’s?
and check the usb c cable.
Hi,
I just picked up a RPi5 myself, and I power it up with the UCPi, and I have had no trouble. I am just using a regular USB-C cable with the highest rated wall wart I could find, which I think is no more than 2amps...I'm not using a very long cable, maybe 3 ft. Incidentally, the RPi5 is supposed to use less power, from what I understood. I am sure this is no help, but at least you have an idea it is not the RPi5!
Try using another 5V 3A wall wart that's NOT a RPi 5 branded PSU if you have one. I discovered this by trial an error. I ended up using another USB-C PSU that came with another SBC I have. There is an issue using the standard RPi PSU (at least it was for me).