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RME User Forum → FireWire & USB series → Babyface pro fs input 3/4 line in question
Good afternoon
I am wondering whether the line in 3 4 (at the sides) is only meant as a instrument input (di) for say electric guitar or if i can also use it as a normal line in to hook up an external mic pre. I know analog 1 en 2 can be switched to line in via pad but i want to use 3 and 4 as 2 more inputs using external mic pres or hook up a cd player for example.
3/4 will work with line signals also.
Will there be a mismatch and or deterioration of sound quality?
I shouldn’t think so. I use mine for guitars keyboards and all sorts
Is it true that line in 3 and 4 detects the source e.g. a guitar and switches to hi-z when needed?
Is it true that line in 3 and 4 detects the source e.g. a guitar and switches to hi-z when needed?
No,it's always hi-Z, Totalmix channel settings for input channels 3 and 4 are the place to click the button -10dBV for guitar or +4dBu for keyboards.
Ok tnx
There is this rme audio video in which someone says these inputs switch to hi z automatically when eg a guitar is plugged in. To me this implies that its not always hi z. Hence the question cause in the manual a fixed impedance is given.
https://youtu.be/ARaW4ihOWgM from about 19.44m
What setting should i chose when using an external mic pre or a cd player, -10 or +4?
Ok tnx
There is this rme audio video in which someone says these inputs switch to hi z automatically when eg a guitar is plugged in. To me this implies that its not always hi z. Hence the question cause in the manual a fixed impedance is given.
https://youtu.be/ARaW4ihOWgM from about 19.44m
What setting should i chose when using an external mic pre or a cd player, -10 or +4?
+4
I got this from user manual page 10, thats why I think it's always hi-Z.
The analog inputs 3/4 are high impedance, unbalanced multi-purpose inputs with TS jacks. They include 9 dB fine digital gain control, and a choice of +4 dBu or -10 dBV reference level, controlled from the Tools menu of input channels 3 and 4 in TotalMix FX.
In any case you always have to watch your incoming signals in Totalmix and react to it.
Ok tnx!
Maybe someone from rme support coukd chime in?
Nothing to chime in - it explicitely says 'Line'.
I dont really understand.
Does it switch to hi-z when needed or is it always hi-z?
It is always Hi-Z, and that doesn't mean it is not suited for Line usage.
Ok tnx. Good to hear!
I think than the presentor of the above mentioned youtube video is maybe mistaken (or I misunderstood him) because he talks about switching to hi-z....
Also on the topic of the unbalanced inputs 3/4, if connecting to a mixer with a balanced TRS output to these unbalanced TS inputs, what cable would be best, TS to TS, TRS to TRS , or TRS to TS? Or would it make any difference?
RME User Forum → FireWire & USB series → Babyface pro fs input 3/4 line in question
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