Marin M Posted May 28, 2017 Report Share Posted May 28, 2017 Hello I would appreciate if somebody could help me. I need to install XLR input sockets into my SR-M323A. I am fine with soldering and will have no problem installing it physically, the only trouble is that I do not understand circuits well. I am really determined though On the PCB input section I noticed an empty space for a resistor and a capacitor for each channel respectively . Has anyone done this mod? Thanks Martin Quote Link to comment Share on other sites More sharing options...
Marin M Posted May 28, 2017 Author Report Share Posted May 28, 2017 And here are some photos of the PCB. http://s1378.photobucket.com/user/Mmartin33520/media/IMG_20170528_194002_zpsqheoalkb.jpg.html?sort=3&o=2 R2 and C2 on both channels are empty as well as the third hole just next to the R and L letter on the PCB. Would it be for a negative part of the balanced input signal? What kinds and values of the caps and resistors should be soldered in there? Would it be possible to have a switch for a single ended or balanced mode? If so would it be complicated or difficult to do? My DAC can work in pre-amp mode so the stock pot is not essential, unless it could be modified for the purpose. Maybe at some point I can find a 4 gang one, but for now, I can bypass it completely. Please let me know if I have omitted any relevant info. many thanks regards Martin Quote Link to comment Share on other sites More sharing options...
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