This is a great performer and value, except for the lack of an strict, accurate filter option that others have pointed out.
You would think that a DAC with volume control and remote might be connected to, say, an amplifier.
Like many DAC reviewed here (that also have remotes) there is no trigger.
This looks like an evolution from desktop products that has not been completed.
Perhaps, if Topping added a trigger, the rest would as well. They all seem to following one another.
If not a trigger out, how about a decent powered USB port. A Raspberry Pi3 with DietPi can run as a Roon endpoint from a standard 5 volt USB port without under-voltage warnings. My MiniDSP SHD has issues with its Roon implementation so I run a RPI3 powered from the SHD USB port. A USB port on the PRI3 is connected to a custom USB power to trigger cable that powers the AHB2 on and off. Like many modern amplifiers, the trigger is operates with 3.3 to 12 volts detection.
- Rich