solderdude
Grand Contributor
of course he did not use a high-Z source.
@Ethan Winer wrote this about the null tester:
The Completed Tester
Once the reduced Null Tester was completed, I made a video to demonstrate the device in operation. The first part of the video explains all about null testing in detail, then the demonstration portion compares three inexpensive wires plus a $700 “boutique” wire. I don’t mind giving away the ending: All four wires were proven to pass audio identically down to a level below –110 dB. In fact, I didn’t think to make this important point in the video: The Null Tester’s inherent noise floor is –110 dB, but our ears can discern the presence of music and speech as soft as 20 dB below the noise. When the Null Tester is set for the deepest null, no music can be heard at all. That means the null is actually 130 dB down, or even more, not “merely” 110 dB. I wish I had thought to make that point where I show music being nulled out completely in the video!
I see no -84dB and no 14 bits there. It really does not matter if the source is just 10 bits or 24bits in resolution.
They will both be able to null down to -110dB (noise floor from tester)
@Ethan Winer wrote this about the null tester:
The Completed Tester
Once the reduced Null Tester was completed, I made a video to demonstrate the device in operation. The first part of the video explains all about null testing in detail, then the demonstration portion compares three inexpensive wires plus a $700 “boutique” wire. I don’t mind giving away the ending: All four wires were proven to pass audio identically down to a level below –110 dB. In fact, I didn’t think to make this important point in the video: The Null Tester’s inherent noise floor is –110 dB, but our ears can discern the presence of music and speech as soft as 20 dB below the noise. When the Null Tester is set for the deepest null, no music can be heard at all. That means the null is actually 130 dB down, or even more, not “merely” 110 dB. I wish I had thought to make that point where I show music being nulled out completely in the video!
I see no -84dB and no 14 bits there. It really does not matter if the source is just 10 bits or 24bits in resolution.
They will both be able to null down to -110dB (noise floor from tester)