I can understand rotating the transformer. But not quite the reason why you turn it upside down. Does it really makes a difference if you only rotate?
The in/out of the wires are at the upper part of the transformer, so make it upside down may block some EM radiation. In addition, the length of the wires between the transformer and the PCB is pretty short; without turning the transformer upside down, you won't be able to rotate the transformer much.
I believe the lengths of wires should be similar between units. Turning the transformer upside down will make some more room to rotate. I have also adjusted the rotation of the ground wire lug.
I've received my unit yesterday as well - thank you goes out to RTX team!
I did some quick tests at 0dB settings - looks as good as expected.
I then also ran one quick test with Jan's Autoranger (also 0dB setting) in the right channel loop... it's almost as good as RTX, but one can see about 5dB difference in noisefloor. That does show how good the RTX is - I sure am happy with it.
I did some quick tests at 0dB settings - looks as good as expected.
I then also ran one quick test with Jan's Autoranger (also 0dB setting) in the right channel loop... it's almost as good as RTX, but one can see about 5dB difference in noisefloor. That does show how good the RTX is - I sure am happy with it.
Attachments
Some more results.
RTX6001 left ch loopback - out setting 0dBV / in setting 0dBV
For THD the levels below approx 0.47V show same THD. Above that a small raise.
For IMD it seems <0.4V is the lowest distortion.
dBV wise the stepping was from -20...-4 dBV
In any case the results are below 0.001% which is superb as is.
RTX6001 left ch loopback - out setting 0dBV / in setting 0dBV
For THD the levels below approx 0.47V show same THD. Above that a small raise.
For IMD it seems <0.4V is the lowest distortion.
dBV wise the stepping was from -20...-4 dBV
In any case the results are below 0.001% which is superb as is.
Attachments
I am not getting any output when connected to the MacBook. Connected to the unbalanced output. Trying to do some music playing.
All the Mac settings are correct, the sample rate will switch to match whatever music is playing, but I am not getting any sound on the output. Volume controls on the player don’t seem to work.
All the Mac settings are correct, the sample rate will switch to match whatever music is playing, but I am not getting any sound on the output. Volume controls on the player don’t seem to work.
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Which audio software did you try? iTunes should work. Make sure it's not sending audio to some AirPlay thingy (happens to me all the time).
The audio configuration can by confusing like hell on Mac OS X.
Check the audio config in the Mac OS X Settings
Check the audio config in the Audio Midi application
No problem on my Mac. The volume control slider is simply disabled if the RTX is selected.
I tried Jriver and iTunes. I switch between three other sound cards with no problem. But I could check again.
You don't control the playback volume via the "software volume control". Either you use the signal level switch at the RTX front, or the audio analyser software (REW, MATAA, whatever) changes the signal amplitude by scaling the samples by some factor before sending them to the RTX.
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