Update.
After allowing the Lumin U1 mini to burn in for around 100 hours the gap widened between it and the Node 2i. I believe the Lumin is more transparent and tonally more natural than the Node. I am keeping the U1 mini and selling the Node. It's not a huge difference, but I find I enjoy music through the Lumin more when the dust settles.
Oz
After allowing the Lumin U1 mini to burn in for around 100 hours the gap widened between it and the Node 2i. I believe the Lumin is more transparent and tonally more natural than the Node. I am keeping the U1 mini and selling the Node. It's not a huge difference, but I find I enjoy music through the Lumin more when the dust settles.
Oz