The bigger question is whether you can really improve the sound by adding more connections?
So your Manley is not a balanced design and using the XLR input adds one more stage of conversion for the amp. But is this really inferior to using 2 more connections and lots of soldering? I will think not. And that's the exact reason I did not use adaptor to connect my CDP to my SF Line 3 SE to take advantage of my Line 3 SE balanced design.
Worth trying and sharing your knowledge with us though.
So your Manley is not a balanced design and using the XLR input adds one more stage of conversion for the amp. But is this really inferior to using 2 more connections and lots of soldering? I will think not. And that's the exact reason I did not use adaptor to connect my CDP to my SF Line 3 SE to take advantage of my Line 3 SE balanced design.
Worth trying and sharing your knowledge with us though.