My Analog mixer Studer 928 has left channel a bit louder than the right in the master bus
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My Analog mixer Studer 928 has left channel a bit louder than the right in the master bus
Hi everybody,
Today doing some checking of my new analog mixer I realized that the left channel of master bus is louder right exactly 0.2 rms and 0.4 peak. I knew that when I did some checks on my daw with a meter plugin but for my ears the stereo was in the center.
Do you think this is normal in analog mixers or Do I have to bring it to the technician for a proper calibration?
Thanks
Today doing some checking of my new analog mixer I realized that the left channel of master bus is louder right exactly 0.2 rms and 0.4 peak. I knew that when I did some checks on my daw with a meter plugin but for my ears the stereo was in the center.
Do you think this is normal in analog mixers or Do I have to bring it to the technician for a proper calibration?
Thanks
- Primary perception
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Re: My Analog mixer Studer 928 in master bus has left channel a bit louder than the right
Forgot to mention. I did the check with mono kickdrum in a mono channel send it to the master.
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Re: My Analog mixer Studer 928 in master bus has left channel a bit louder than the right
Have you tried this on different channels? It may be that it’s the pan control on that channel and other channels will give different results. The two carbon tracks on the balance pot will have some tolerance on their values, and for an analogue circuit, 0.4dB difference is pretty good!
Reliably fallible.
Re: My Analog mixer Studer 928 in master bus has left channel a bit louder than the right
Thanks a lot for your reply!
I only tested it in one channel, I will do the test on Monday.
Yeah I would be pretty good for analog because to my ears the difference were not audible and in VU meter was ok.
I only tested it in one channel, I will do the test on Monday.
Yeah I would be pretty good for analog because to my ears the difference were not audible and in VU meter was ok.
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Re: My Analog mixer Studer 928 has left channel a bit louder than the right in the master bus
Mr Sweetbeats is our resident TOTAL expert on Studer mixers but in the meantime you will have to put up with my meagre knowings...
You need a SINE signal source and any DAW can generate them including Audacity. I would choose a frequency of 300Hz, less piercing than the standard 1kHz and since I suggest you use a Digital Multi-Meter to measured the levels that is low enough to be in its accurate range. Much over 1kHz will not be.
Once you have the voltage differences there are several online calculators that can turn them into "dBV" or "dBu".
If you don't know how to test this, come back to me and I can walk you through it. I will however need an attached user manual/better service manual. These will also surely give you the specification including channel match?
Jusfort! The desk might have a built in line up sine generator of its own!
Dave.
You need a SINE signal source and any DAW can generate them including Audacity. I would choose a frequency of 300Hz, less piercing than the standard 1kHz and since I suggest you use a Digital Multi-Meter to measured the levels that is low enough to be in its accurate range. Much over 1kHz will not be.
Once you have the voltage differences there are several online calculators that can turn them into "dBV" or "dBu".
If you don't know how to test this, come back to me and I can walk you through it. I will however need an attached user manual/better service manual. These will also surely give you the specification including channel match?
Jusfort! The desk might have a built in line up sine generator of its own!
Dave.
Re: My Analog mixer Studer 928 has left channel a bit louder than the right in the master bus
Earth to Dave, Earth calling Dave.
This isn’t about aligning the VU meters. The OP has taken the mixer outputs into his DAW to compare the signal levels on the L and R outputs and noticed a very slight discrepancy in levels.
0.2dB RMS level and 0.4dB peak. That’s probably under the threshold for the human ear to tell a difference, and you’ll get far bigger differences between drivers in speaker and headphone response, so it’s not a value to be concerned about.
A sine wave is an easier wave to measure accurately, so the OP may want to try again with a sine generated by the DAW and fed from the audio interface back into the mixer. They can then try the sine at different frequencies to check that the frequency response is the same on both channels.
This isn’t about aligning the VU meters. The OP has taken the mixer outputs into his DAW to compare the signal levels on the L and R outputs and noticed a very slight discrepancy in levels.
0.2dB RMS level and 0.4dB peak. That’s probably under the threshold for the human ear to tell a difference, and you’ll get far bigger differences between drivers in speaker and headphone response, so it’s not a value to be concerned about.
A sine wave is an easier wave to measure accurately, so the OP may want to try again with a sine generated by the DAW and fed from the audio interface back into the mixer. They can then try the sine at different frequencies to check that the frequency response is the same on both channels.
Reliably fallible.
Re: My Analog mixer Studer 928 has left channel a bit louder than the right in the master bus
Saturn (see Holst) to Wonks. Gotcha. You did not however spot that I mentioned a contributor that is not actually part of this forum!
Sweetbeats is the expert on all things whirly and analogue over at HR.com
Bleary and not had me Alpen yet. MUST put lappy away.
Dave.
Sweetbeats is the expert on all things whirly and analogue over at HR.com
Bleary and not had me Alpen yet. MUST put lappy away.
Dave.
Re: My Analog mixer Studer 928 has left channel a bit louder than the right in the master bus
This highlights the dangers of looking at the numbers and ignoring your ears!
0.2dB difference between channels is perfectly fine for a vintage analogue mixer and not something I'd get even slightly bothered about.
0.2dB difference between channels is perfectly fine for a vintage analogue mixer and not something I'd get even slightly bothered about.
- Hugh Robjohns
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In my world, things get less strange when I read the manual...
(But generally posting my own personal views and not necessarily those of SOS, the company or the magazine!)
In my world, things get less strange when I read the manual...
Re: My Analog mixer Studer 928 has left channel a bit louder than the right in the master bus
Hugh Robjohns wrote: ↑Sun Jan 16, 2022 10:23 am This highlights the dangers of looking at the numbers and ignoring your ears!
0.2dB difference between channels is perfectly fine for a vintage analogue mixer and not something I'd get even slightly bothered about.
True Hugh true but that is what the OP asked. Also I hope it never happens to you but I can no longer trust my ears. Not only are they very mutton but I also have a left/right discrepancy.
Dave.
Re: My Analog mixer Studer 928 has left channel a bit louder than the right in the master bus
It would be rather silly to invest in a Studer 928 if you couldn't trust your ears...
But I should have been clearer. A level discrepancy of 0.2dB is definitely inaudible and virtually unnoticeable on analogue meters -- even the lovely twin-PPM.
But on a DAW with digital readouts, different numbers take on a much greater apparent significance than they deserve.
Hence it being better to use metering to confirm and quantify what your ears are telling you, not the other way around.
But I should have been clearer. A level discrepancy of 0.2dB is definitely inaudible and virtually unnoticeable on analogue meters -- even the lovely twin-PPM.
But on a DAW with digital readouts, different numbers take on a much greater apparent significance than they deserve.
Hence it being better to use metering to confirm and quantify what your ears are telling you, not the other way around.
- Hugh Robjohns
Moderator -
Posts: 34083 Joined: Fri Jul 25, 2003 12:00 am
Location: Worcestershire, UK
Contact:
Technical Editor, Sound On Sound...
(But generally posting my own personal views and not necessarily those of SOS, the company or the magazine!)
In my world, things get less strange when I read the manual...
(But generally posting my own personal views and not necessarily those of SOS, the company or the magazine!)
In my world, things get less strange when I read the manual...
Re: My Analog mixer Studer 928 has left channel a bit louder than the right in the master bus
"It would be rather silly to invest in a Studer 928 if you couldn't trust your ears..."
?? Never said I woz Doc?
Dave.
?? Never said I woz Doc?
Dave.
Re: My Analog mixer Studer 928 has left channel a bit louder than the right in the master bus
Thanks a lot everyone for all the info!
It has been really helpful
I thought that was nothing important because to my ears was good but I wanted to be sure about it. ( Always the fear that something is broken)
It has been really helpful
I thought that was nothing important because to my ears was good but I wanted to be sure about it. ( Always the fear that something is broken)
- Primary perception
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