Best WiFi Music Streamer Does it exist?

" Audirvana integrates a decoder for MQA files (Master Quality Authenticated), a PCM format able to reproduce HD quality in a file small enough to be streamed or downloaded."

" A “MQA Decoder” DAC takes care of all the decoding process. If your DAC is an “MQA Renderer”, decoding is shared between Audirvana and your DAC. Both options grant you an optimal quality. "

"  Even if your DAC isn’t MQA compatible, you can still read the files with Audirvana’s integrated decoder and benefit from their high resolution, including the unfolding of the upper half hires signal. "

Using HQPlayer would be more of a Basis for how your system works.

From Signalist description: "  Asynchronous FIFO provides maximum isolation between processing and audio reproduction." 

But the Terminator DAC also uses a FIFO Buffer for isolation.

The exaSound Sigma Streamer supports WiFi (with network interface) :

https://exasound.com/Products/SigmaStreamer.aspx

Check into the Sigma Streamer for compatibility with Terminator DAC.

HQPlayer would typically be used for a Custom Audio PC and is enbedded in many streaming Products.

My Integrated Amp (also WiFi capable) does Streaming and DSP noise shaping and more making playback notably good all at once.

My component Headphone Gear - two Amps / one DAC sound good 

but I know that my DAC can be much better.

Maybe I'll have a chance to use HQPlayer sometime soon.

Auralic Aries G1 streaming transporter. Connect your hard drive to it connect it to your DAC. If you want an all in one with internal storage and DAC they have other products. It can be controlled with BubbleUPnP, Kazoo instead of the Lightning app which is iOS.

If your serious about making this streamer your primary listening device then you have to connect with a CAT 5,