No, the black RCA connector is an input alright. I’ve used it to hook up my old Marantz CD-56 player to this streamer. On the RC one can choose the input mode, SPDIF or Pi (Volumio).I believe that's an SPDIF output, not an input.
No, the black RCA connector is an input alright. I’ve used it to hook up my old Marantz CD-56 player to this streamer. On the RC one can choose the input mode, SPDIF or Pi (Volumio).I believe that's an SPDIF output, not an input.
From the product page:What is the display actually showing? Are album covers and titles showing?
Ground loops only occur when there are differing potentials between grounds.
In the illustration above, the cables will all be terminated at the same ground on each device - therefore no ground loop will exist, at audio frequencies.
If this was RF - then it would be a different situation - but at audio frequencies this is of no consequence.
Ground loop currents can be induced by stray AC magnetic fields[4][6] (B, green) which are always present around AC electrical wiring. The ground loop constitutes a conductive wire loop which may have a large area of several square meters. By Faraday's law of induction, any time-varying magnetic flux passing through the loop induces an electromotive force (EMF) in the loop, causing a time varying current to flow. The loop acts like a short circuited single-turn "transformer winding"; any AC magnetic flux from nearby transformers, electric motors, or just adjacent power wiring, will induce AC currents in the loop by induction. In general, the larger the area spanned by the loop, the larger the magnetic flux through it, and the larger the induced currents will be.
in almost all country's neutral is connected to ground.The power supply provided with this product is of the two pin variety - and hence there is no path to ground (unless in some countries where neutral is connected to ground - in which case there could be a ground path under certain circumstances).
it is creating a small current between the device it's powering and other equipment's ground. the return part for this current is ground...It is this capacitor that causes noise (it is *not* a ground loop) - it is mains noise injected into the device it is powering - which also creates a small potential between the device it's powering and other equipment.
Mains earth do not have to be involved to have a ground loop. (although it is in this case) you can have ground in Airplane.These are leakage currents - which although akin to earth loops, are not quite the same thing, as mains earth is not directly involved.
Ground loop (electricity) - Wikipedia
en.wikipedia.org
in almost all country's neutral is connected to ground.
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The Question is only where...
it is creating a small current between the device it's powering and other equipment's ground. the return part for this current is ground...
so the loop is closed trough ground. therefore you can call it ground loop.
The current introduces a voltage drop over the cable impedance...
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Mains earth do not have to be involved to have a ground loop. (although it is in this case) you can have ground in Airplane.
- Yes, this may be an issue with this type of compact enclosure, which is not optimal for use with the power hungry Pi4. Last summer, the processor of my unit went up to 70 degrees (Celsius), resulting in on screen warnings for overheating (blinking thermometer). I therefore fitted a small, silent (switched) fan in the enclosure, which brings down the core temperature 15-20 degrees when needed.
- No heat sink (or fan) so it will run hotter than the NanoSound One.
- Does it need a linear 5V supply? Would the standard RPi PSU work ok?
LPS shouldn't be measurably better unless the filtering and regulation on the DAC board are inadequate.Lps should be measurably better, although I doubt that you will hear this, even with high end gear.
This is not helpful. The capacitor would not be doing this anywhere near an audible frequency so the "loops" are not at all what we are classically calling a "ground loop" in the audio world. Indeed capacitors linking signal / mains to earth are present in every piece of electronics, but it's disingenuous to say every audio system has a ground loop.the return part for this current is ground...
so the loop is closed trough ground. therefore you can call it ground loop.
Equally not helpful. The potential difference created is related to the current and the voltage drop across the interconnect. This would be the equivalent of someone farting in Paris and you smelling it in London. The currents involved over an interconnect are waaaaaaaaaaaaaaay to minuscule to generate a potential difference in anything other than a dangerous fault condition. The overwhelming majority of audio ground loops are induced magnetic field loops or faulty ground connection forcing current to return over the chassis safety wiring. Any other form of ground loop is vanishingly rare, not only audibly but measurably too.The current introduces a voltage drop over the cable impedance...
So that's why I can't buy one!I've been collecting RPi4Bs!
Oh my, those are amazing speakers.I'm running the beta of Volumio 3 on an old raspberry pi. The beta has DSP and EQ and works well on a Pi3 for me
How "better"I instantly got better sound.
Verry Unlikely.better bass
Very unspecific.nicer sound and let's say cleaner sound.
Well i could make a long list of stupid thinks people do because they believe...I still in doubt why many people use linear psu?