@JensH,
Thanks for the answer. The settings are:
48kHz sample rate, 2 channels in/out 32 bits, buffer 256 samples, safe mode checked.
I'm new in this way of measuring. For the time being I'm experimenting with Audiotester (registered) using a Zotac box (W7/64, 4GRam, VIA 1.2GHz)(a lot of hiccups..). I'm not sure of my setup of Audiotester, I'm trying to replicate your measurements found in this thread, not sure for the results. Attached test.
Thanks for the answer. The settings are:
48kHz sample rate, 2 channels in/out 32 bits, buffer 256 samples, safe mode checked.
I'm new in this way of measuring. For the time being I'm experimenting with Audiotester (registered) using a Zotac box (W7/64, 4GRam, VIA 1.2GHz)(a lot of hiccups..). I'm not sure of my setup of Audiotester, I'm trying to replicate your measurements found in this thread, not sure for the results. Attached test.
Attachments
Hi Ghianni,
Is that a XLR to XLR connection or BNC to XLR connection?
I am not familiar to Audiotester to help you by feedback, but with ARTA, xlr->xlr, 44K, 131K FFT window and not warm RTX...I have seen THD 0.000099% - 0.00012%
Is that a XLR to XLR connection or BNC to XLR connection?
I am not familiar to Audiotester to help you by feedback, but with ARTA, xlr->xlr, 44K, 131K FFT window and not warm RTX...I have seen THD 0.000099% - 0.00012%
@Ghianni
What do you mean by "a lot of hiccups"? Do you get transmission errors?
If so, I would suggest to set the "ASIO Buffer Size" to "Auto" instead of 256 samples.
The computer doesn't look like the fastest, so a larger buffer might be an advantage.
If you get dropouts you should also check the USB port. Try to avoid going through a USB hub if at all possible. I have seen issues when going though a USB hub, but that was at 192 kHz sample rate.
What do you mean by "a lot of hiccups"? Do you get transmission errors?
If so, I would suggest to set the "ASIO Buffer Size" to "Auto" instead of 256 samples.
The computer doesn't look like the fastest, so a larger buffer might be an advantage.
If you get dropouts you should also check the USB port. Try to avoid going through a USB hub if at all possible. I have seen issues when going though a USB hub, but that was at 192 kHz sample rate.
@Ghianni,
What were the settings used for the measurement, output level (dBFS), attenuator settings?
What were the settings used for the measurement, output level (dBFS), attenuator settings?
For lower measurements 0.000099-0.00010%, you need to test with one RTX channel in operation, otherwise with two RTX channels the THD increased to 0.00012%-0.00014% range.
RTX output/input...0dBV/0dBV
Hello jensH,
I received the RTX6001 a few days ago and took it out of the box this afternoon. I followed the instructions in the “Quick-Start Guide”.
I changed the fuses and found a power cord.
I downloaded the PDF User manual.
The USB driver will not download in a usable file format. How do you open this file? How do you use it?
Thanks DT
Page 4 of Quick-Start Guide
2.2 Installing the RTX6000 Series PC Driver When using a Windows PC, a driver is needed to support USB Audio Class 2.0. The driver for the RTX6001 must be installed on a PC for proper operation. The driver supports Windows 7, 8, 8.1 and 10. Both 32 and 64 bit systems are supported.
Download the software installation package from the download center on the RTX website 404 - The page you are looking for can't be found. - RTX Run the program RTX_v4.33.0_2017
I received the RTX6001 a few days ago and took it out of the box this afternoon. I followed the instructions in the “Quick-Start Guide”.
I changed the fuses and found a power cord.
I downloaded the PDF User manual.
The USB driver will not download in a usable file format. How do you open this file? How do you use it?
Thanks DT
Page 4 of Quick-Start Guide
2.2 Installing the RTX6000 Series PC Driver When using a Windows PC, a driver is needed to support USB Audio Class 2.0. The driver for the RTX6001 must be installed on a PC for proper operation. The driver supports Windows 7, 8, 8.1 and 10. Both 32 and 64 bit systems are supported.
Download the software installation package from the download center on the RTX website 404 - The page you are looking for can't be found. - RTX Run the program RTX_v4.33.0_2017
You should know that some browsers strip out the .exe extension from the download. So you need to get to the file and rename it and then you're all set. This happened to me when I was trying to get the RTX driver from their site. I was more than a bit annoyed before I finally figured out what happened.
Renamed the file, added .exe, appears to be installed and functioning after only limited profanity.
Thanks
DT
Glad that you got it sorted out. I will check if there is something that can be done from RTX side to eliminate the issue.
@Ghianni,
Here a sample with 44K loop-back, with RTX one channel active and 32K FFT window.
THD = 0.000099%
Attachments
Hello,
I did not pay attention. The RTX6001 does not have single end BNC’s at the analyzer inputs.
I am supposing that all the loopback plots posted are XLR cable balanced FFT’s?
Has anyone fabricated a custom cable to plot single end loopback?
I grew impatient while we were anticipating the arrival of the RTX6001. There is an APx on my bench. See the attached BNC loopback; 1V out 96K FFT.
After I sort the Audio Tester V3.0 SW I will post that FFT.
DT
I did not pay attention. The RTX6001 does not have single end BNC’s at the analyzer inputs.
I am supposing that all the loopback plots posted are XLR cable balanced FFT’s?
Has anyone fabricated a custom cable to plot single end loopback?
I grew impatient while we were anticipating the arrival of the RTX6001. There is an APx on my bench. See the attached BNC loopback; 1V out 96K FFT.
After I sort the Audio Tester V3.0 SW I will post that FFT.
DT
Attachments
Last edited:
Here single ended loopbacks of the RTX6001. Out switch set to 20dBV, in switch to 10dBV, output signal 1kHz -14dB (thus 1V at SE-out) 96kHz.
First picture with the above mentioned adapter
Second with a cable where Pin 1 is only connected to the screen but not to the BNC (the earlier recommended "no17" wiring).
First picture with the above mentioned adapter
Second with a cable where Pin 1 is only connected to the screen but not to the BNC (the earlier recommended "no17" wiring).