Hi there,
I'm looking to complete my HiFi setup with a turntable. I currently have a Raspberry pi 4, Amp 100 and a DSP.
Can I just plug a turntable to the TosLink input? Or do I need a DAC + ADC? In that case, can I combine the ADC to the Amp 100?
Thanks in advance for your answer.
The Amp100 doesn't have any analog input. You would need an external ADC that converts the turntable signal to TOSLink.
You also need to DSP add-on to use the TOSLink input. Without this, the TOSLink connectors don't have any function.
Thanks for the fast answer!
I do have the DSP already, so I'll search for the ADC. Once I plug something in the TOSLink, it will appear as a source in HifiBerryOS? Or how can I select it as a source?
Is it possible to plug the Hifiberry DAC+ ADC and the Amp 100 to the raspberry pi? Would it be an option as well?
The optical input should be there as a source already if you're using the latest HiFiBerryOS release.
This is what I see currently in the sources. I don't have anything plugged in the optical input right now, is it supposed to show up when I plug something? I have HiFiBerryOS 20201213 and the DSP card setup and working.
Since I have anyway to invest in connecting RCA to my Amp 100, I want to evaluate all options. One is using the optical input, then I have to invest in a ADC with optical out. The other solution I could imagine, is to use the Hifiberry DAC+ ADC together with the Amp 100 to the raspberry pi? Could that be an option as well?
There's a bug in the 20201213 release with the optical input on the DAC+ DSP:
https://github.com/hifiberry/hifiberry-os/issues
You can't combine multiple sound cards on the same Pi, e.g. the Amp100 and DAC+ ADC.
Great, thanks a lot for the answer!
So I did some research today and I'll summarize my findings here, because it's not straightforward to find an external ADC that converts the turntable signal to TOSLink.