Sidestepping? - it is listed on page one (for the third time....)
Audiosmile DEQ2496
yeah sorry I missed it, hence the edit at the bottom of my post.
You are arguing that the ADC is perhaps masking differences.
Behringer is probably the biggest joke in the pro audio world and so yes, I am saying that attempting to do anything involving high fidelity on it is being masked.
I'm explaining to you that it clearly doesn't mask something as subtle as swapping one felt mat for another. If capable of revealing that difference, a pretty subtle one, it should be able to reveal the difference between £150 worth of Chord cable and some bits of brass and sweet wrapper.
The counter argument is that the ADC is applying some sort of intelligent masking. So explain it.
Look , your behringer is masking everything. You might as well be recording on a wax cylinder and then claiming cables make no difference.
Removing/changing your mat from your turntable will lower the height of the record and so you'll need to alter your turntables arm height tracking, it will also add more earthbound vibrations to the needle (your deck isn't suspended is it?) . I'm not suprised your can pick this up with the ADC you're using, as you're probably changing the whole sound balance of your TT.
Record onto something decent , record 24bit 96khz or similar with -4db headroom. Record with a dedicated ADC and not a glorified EQ for your local boozers version of chaz n dave.
I'm not saying that cables are different , im saying that your test is flawed.
Why did you choose a turntable to record from ? why didn't you use a CDP that are known for stability and then we could have done negative phase tests to see if any differences where present ?