4 Input Balanced Stereo Switcher Relay vs. Multiplexers?

[seyl3r]

Hi everybody,

I want to build a balanced input switcher for up to 4 stereo inputs and, if possible, not degrade or alter the audio signal.

What would you recommend, a relay or multiplexers solution? Is one better than the other in terms of audio quality?

I am very pleased about any concrete suggestions

Thanks!

 

[Mark Tillotson]

What signal levels? likely source and load impedances?

 

[seyl3r]

Sources will be any DACs with balanced output a MOTU M4 right now, load shall be this board MUSES72320 Volume Control Board with Ground Sensing Output – hifiocean with an input impedance of 47 kOhm I believe.

In my previous solution with only two unbalanced inputs I used two relays but I'm wondering if there is a more elegant solution than to put relays in series.

I would like to control the switcher with an arduino.

 

[johnhenryharris]

Hi seyl3r,
I just posted about an input selection board and mute. Check it out.