Does anyone have an opinion about the Audioengine D2?

After listening to the output of my PC soundcard distributed across the house for many years I almost bought one to transmit to the HiFi to avoid the cheap coax and cheap card amp.
Instead I spent half as much on my first streamer and was immediately blown away. Still am.
I only use the PC now for ripping and loading the streamers over WiFi.

Not with this unit.  I have one of their Bluetooth DACs and I am very impressed 

Really depends on the rest of your system. If you have the A5’s it’s probably gonna be fine.