rdodevThe matrix has all neutrik connectors a Nortel torodial transformer wima caps and high grade nichicon audio capacitors. All of which you won't find in the massdrop thx aaa. You get cheaper grade components cheaper connectors and a wall wart power supply.
DareToBeTwice the power @ 300/600 ohm. I upgraded the opamp to an opa1656 and truth be told I listen to it more than my 789. It just has a less metallic or less cold sound and as some would say a class-A sweetness.