Chord Mojo is great if you have current single-ended headphones and wish to delve into balanced audio later.
From worst to best:
Onkyo DP-X1 single-ended < Onkyo DP-X1 + Chord Mojo single-ended < Onkyo DP-X1 in balanced BTL mode < Onkyo DP-X1 Balanced in AGC mode.
However, if you never intend to use balanced headphones, don't get Onkyo DP-X1.
Get Pioneer XDP-100R so you can still have 2x MicroSD slots and MQA support,and use with Mojo.
That's my opinion ofc, and YMMV,as well as needs.
SORRY I got confused what forum thread I was on.
Chord Mojo is great GET IT!