raspberry pi 3 + Nad PP4

anything and nothing
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pingooskn
Belgium
Posts: 1
Joined: 23 Jan 2020 12:25

raspberry pi 3 + Nad PP4

Post by pingooskn » 23 Jan 2020 12:40

Hello,
I use a raspberry pi 3 with pi music box and i try to connect it to my nad pp4. But i have no sound...
Do you have any idea how to solve the problem ?

https://i.ibb.co/tKLpNsW/amp.jpg
https://i.ibb.co/Z6fxyRZ/amp2.jpg

I want connect my speakers to my local network :)

ps: my pi music box works with other divices
ps': I can listen my vinyls without problem with my nad/amplifier.

(sorry for my bad english, im not an English-speaker)


Thanks :)

Alec124c41
vinyl engineer
vinyl engineer
Canada
Posts: 23457
Joined: 28 Oct 2002 03:24
Location: North of Toronto, Canada

Re: raspberry pi 3 + Nad PP4

Post by Alec124c41 » 23 Jan 2020 14:53

The NAD PP4 is a phono preamp, to be used only with a turntable output.
A phono cartridge puts out a signal of a few millivolts, which the PP4 would raise to the 1 volt line-level range, while correcting the tonal balance.
You are feeding a digital source through the pi music box, which puts out a tonally balanced line-level signal. This signal overloads the PP4.
You do not need or want the NAD in there. Use it only with the turntable.

Cheers,
Alec

Jampot90
member
member
England
Posts: 88
Joined: 01 Apr 2015 14:50

Re: raspberry pi 3 + Nad PP4

Post by Jampot90 » 23 Jan 2020 21:09

I guess you are trying to 'push' the USB output from the PP4 to the Pi Musicbox. A quick look at the Pi Musicbox manual makes me suspect that it is only designed to 'pull' a digital stream from a storage device via USB so distributing vinyl play back over your network is not possible.

If I'm mistaken, hopefully someone else will be along to tell us all how:-)

Jim

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