I'm building a home audio system that using a Raspberry Pi 2 as an audio playback device. This amp seems ideal to power the speakers, but I'm confused about the power supply needs. What power supply do I need for RPi with the Amp+ connected?
Also, how does this amp perform with long cables? My controller will sit in a lower level room with cables running to a second floor.
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8 comments
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HiFiBerry team Power supply should be 12-18V, this one works very well:
https://www.hifiberry.com/product/meanwell-gs60a18-p1j/
I'm not sure about your cabling. In general, cables with high current should be as short as possible. However, there are a lot of people that use quite long cables without problems. Here is an example:
https://www.hifiberry.com/2015/06/multiroom-system-based-on-raspberry-pihifiberry-combination/
Best regards
Daniel
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KirkDCO Excellent! I assume this plugs directly into the Rasperry Pi and the Amp receives power from there. Is that correct?
And, the link you suggested looks very much like the setup I'm going for.
I've placed my order already - looking forward to receiving the pieces. -
HiFiBerry team Hi,
the power supply needs to be connected to the Amp, not the Raspberry Pi. The Raspberry Pi is powered from the Amp:
https://www.hifiberry.com/guides/connecting-power-supply-and-speakers-to-the-hifiberry-amp/
Best regards
Daniel -
KirkDCO That makes much more sense! Thank you!! -
JEAN-PAUL GOBEL I have an HIFIBERRY AMP+ I see that the power supply should be 12-18V. My question: is it risky to use a power supply of 19V 4,7A . Thanks for your help
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HiFiBerry team Are you talking about te Amp+ or the Amp2?
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JEAN-PAUL GOBEL Thanks. As said, Amp+
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HiFiBerry team Absolute maximum voltage for the Amp+ is 20V. Therefore, I would not recommend 19V as this is already quite close to the 20V. With the Amp2 the situation is different as the maximum voltage is 24V.
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