I need an XLR switcher that allows me to use my balanced DAC with three different amplifiers.
I've read positive comments about these two switchers:
https://www.amazon.com/Nobsound-Audio-Balanced-Converter-Selector/dp/B07QVKPR2V/ref=sr_1_1?dchild=1&keywords=Nobsound+1-IN-3-OUT+XLR+Audio+Switch+;+Balanced+Audio+Converter+;+3-Way+Stereo+Passive+Audio+Selector+Switcher+(MC103+Pro+3-Out)&qid=1593517314&sr=8-1
https://www.amazon.com/Nobsound-Balanced-Converter-Audio-Selector/dp/B07D7P7366?tag=headfi-20
But so far no comments about this one:
https://www.ebay.co.uk/itm/Stereo-3...3?hash=item3f70c4a363:g:Z1AAAOSw505dm6~C#rwid
As I have cerebral palsy, the unit with three rocker switches would be easier for me to operate, but I don't know if it will function as I require. It's advertised as a "3-input / 1-output" device, so I emailed to ask them if it can be used as a "1-input / 3-output" device and this is the response I got:
"both of 2 are supports
best wishes
Douk Audio"
I'm assuming this is a yes but just wanted to double check in case I'm missing anything?
Are there differences between this rocker switch unit and the two Nobsound units that would mean one having superior transparency and longevity than the other, in terms of the quality of the components and complexity of the design?
Also, with regards to the switcher with the rockers, I'm assuming it can function as both a switcher and a splitter, depending how the rocker switches are set? i.e. if all rocker switches are in the 'on' position then the signal will be output to all three amps simultaneously? Most of the time I'll just be using it as a 1-in / 1-out switching device, so as long as the DAC doesn't "see" the input impedance of the two amplifiers connected to the rocker switches in the 'off' position then the performance of the DAC shouldn't be affected, should it?*
* I currently have my DAC connected to two amps with a basic XLR splitter cable and don't experience any performance issues, unless I introduce an amp that shorts its inputs when it's switched off, which then causes distortion in the other amp and means I can't listen to clean audio unless both amps are turned on. Hence the importance of the switcher being able to isolate the other amp/s if need be.
EDIT - One final question: With the MC3 (3-input / 3-output unit), what happens when you send an XLR input to the RCA output? i.e. does the 4Vrms balanced signal remain at 4Vrms or is it halved to 2Vrms? (I'd hope it would be halved to 2Vrms as most amplifiers single-ended inputs are only rated for 2Vrms).