FAQs

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How much mA does the DC iPurifier draw?

Accessories
Power
DC iPurifier2
The DC iPurifier 2 draws around 50mA for its own operation regardless of voltage, in most cases this is negligible. The rest of the power is available to the powered…
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How to test for missing/multiple earth/ground?

Accessories
Operation
Groundhog+
Here is a short quick guide: If adding GroundHog+ kills noise – missing earth/ground. If adding GroundHog+ does nothing (to noise) – problem elsewhere. If adding GroundHog+ makes more hum,…
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Impedance matching circuits

Accessories
General
iEMatch iEMatch2.5
To make it a bit more clear on our end, iEMatch has at the max under 3 Ohm output impedance. The respective changes in amplitude with frequency generally pretty much…
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Increasing digital volume to recover Bits

Accessories
General
iEMatch iEMatch2.5
We see it quite often that where there is a mix-up of actual, objective dynamic range (that is the difference between a digital maximum level signal and silence) and subjective…
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Is cross-talk possible?

Accessories
General
iEMatch iEMatch2.5
Question: I was wondering if this was an intended issue with the IEMatch. I have noticed that I am getting some crosstalk even across different headphones/earphones/IEMs and different devices. Doing…
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Is it normal to run warm?

Accessories
General Power
iSilencer3.0
The iSilencer draws a few milliamperes, nothing major. It will get a little warm, that is normal. USB bus power is 5V +/- 10% and should not vary more than…
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Is it stable & how many can it stack?

Accessories
General Operation Quality
iRack
You’ll be surprised how stable this product is as it has isolation spikes which can be inserted into the provided ground feet or directly into a carpet-like surface. We’ve managed…
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Is the iPower hard to destroy?

Accessories
iPower
The iPower has comprehensive protection, including over-current and other external failures, but also for some types of internal failure, therefore with proper management it’s pretty hard to kill.
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Is the iPower RoHS certified?

Accessories
General
iPower
Yes, it is RoHS certified. Sometimes it is normal for new power supply to have a small smell upon initial use, after a few days of use, the smell will…
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Is the USB iPurifier bi-directional?

Accessories
iPurifier3
USB is always bi-directional (works both ways).  USB defines host and device or in terms of direction upstream (communications from device to host) and downstream (communication from host to device).…
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Mains analyser shows noise has increased?

Accessories
Operation
AC iPurifier
The following is from Thorsten, one of our designers. And from an objective, electrical point of view. So please bear with us! https://www.technologyfactory.eu/en/blue-horizon/blue-horizon-mains-noise-analyser/a-5717-320 This does not strictly measure mains noise,…
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Noise band, any reason why past it?

Accessories
General
iPower
Question (example): The noise is given in the audio band. If a 5V power supply is used to power a USB DAC how much significant can be the noise beyond…
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