10-01-2019, 08:59 PM
Hi,
I've been reading a lot about how much PSUs affect sound quality.
Obviously a linear PSU reduces noise that may end up in the audio signal in the end.
But it seems all mentioned linear PSUs are 5V and don't have too much ampere / watt, which is enough to power a Raspberry Pi, but not an amplifier.
I own a Hifiberry AMP2 that features a built-in 60W amplifier and also transforms the input DC to 5V DC to power my Pi.
So I am wondering if there are any (affordable) linear PSUs that deliver about 20V (max 24V for the AMP2) and 60+W (some extra watts would be nice since power ratings are usually peak and not sustained) that could be used to power my setup?
And also, does a linear PSU really make sense for the AMP2? Or does the integrated DC-DC conversion to 5V for the RPi introduce noise itself and a good (and possibly expensive) PSU would not have any effect on sound quality in the end?
Do any of you have experience with different PSUs and the Hifiberry AMP(2)?
What PSUs are you using with the AMP(2) or which would you recommend for me?
Right now I am using a 19V Meanwell switching PSU, but I'd like to know if a better PSU may improve my sound quality. I don't really have anything to compare or a reference, but I am willing to try a different PSU if it makes sense.
Peter
I've been reading a lot about how much PSUs affect sound quality.
Obviously a linear PSU reduces noise that may end up in the audio signal in the end.
But it seems all mentioned linear PSUs are 5V and don't have too much ampere / watt, which is enough to power a Raspberry Pi, but not an amplifier.
I own a Hifiberry AMP2 that features a built-in 60W amplifier and also transforms the input DC to 5V DC to power my Pi.
So I am wondering if there are any (affordable) linear PSUs that deliver about 20V (max 24V for the AMP2) and 60+W (some extra watts would be nice since power ratings are usually peak and not sustained) that could be used to power my setup?
And also, does a linear PSU really make sense for the AMP2? Or does the integrated DC-DC conversion to 5V for the RPi introduce noise itself and a good (and possibly expensive) PSU would not have any effect on sound quality in the end?
Do any of you have experience with different PSUs and the Hifiberry AMP(2)?
What PSUs are you using with the AMP(2) or which would you recommend for me?
Right now I am using a 19V Meanwell switching PSU, but I'd like to know if a better PSU may improve my sound quality. I don't really have anything to compare or a reference, but I am willing to try a different PSU if it makes sense.
Peter
