So i bought this rather new Topping E30II, was to curious not to and it could be this was my own Xmas present
I find this very amousing actually to see with own eye's and equipment
I decided to take some measurement of the Topping, as a reference to my modded Behringer and Twin-T passive notch.
The Audiosciencereview showing sinad (THD+N) of -117dB. @ USB input.
First measurement showing direct from Topping into the balanced input on my modded Behringer.
THD+N is showing -101dB (Which is rather far from Audiosciencereview Amir's -117dB)
- But it's clearly showing some very good result's comming from the Topping.
Now with my passive 1KHz notch and calibration file applied. (Red curve is calibration file)
Showing a better THD+N @ -105dB, but still 12dB from Audiosciencereview's.
I'am sure that if i used some very high grade active notch i could end up near -117dB, but due to component shortage and price increasing, i find it to expensive to build one at moment.
LEFT channel notched:
RIGHT Channel notched:
Just for the fun of it i also tried measuring two of the DAC filter's (Outputfilter 2 is the default)
Outputfilter 2:
Here is the DAC filter 1:
Jesper.