My old wavelength audio DAC is still usable


Hello everyone,
I am new to digital. Yesterday I just bought the Bluesound Node 2. After hooked it up into my stereo system, to my supprise, the Node sounds much better through my wavelength Cosine compared to hookup directly throgh its rca out put even my Dac cannot decode MQA format.
Could someone tell me why please.
 Thanks 
dangcaonguyen
@dangcaonguyen pls read this:

http://bobtalks.co.uk/blog/science-mqa/mqa-playback/

The first unfold is done by your Node 2.
If the external DAC does not support MQA, then Node 2 will output either 88.2 or 96 kHz.  You will not get full decoding which can be up to 384 kHz depending on the MQA FLAC file original resolution.

@anwar thanks for the link.
I will read it several more times to get better understanding the subject.
bottom line the first unfold and remaster is worth something, combine that with Rankin SQ and engineering and you beat most stuff......