Solved Problem with Presonus Studio 1824c.

[MC2]

I have a strange problem with interface Studio 1824c. Yesterday everything was working fine. I worked with plugged into MacStudio M2 Ultra - it did not betray any problems.
Today I turn on the computer, and the interface switch button turns red and that's the end of its activity. After switching on, all the input lights on the display blink only once, and lightly highlighted in blue are 48V and Line. On the other hand, no switch works (does not respond to being pressed), and the interface is not visible in the system. Universal Control can't see the interface on both the Mac Studio with Sequoia and the old MacBook Pro with Catalina. Where previously on both it worked without problems.
The question is what else can I do about it?

 

[aoVI]

I had a similar issue on an older Presonus interface (44VSL).

After trying to troubleshoot it I ended up replacing it with an 1824c. On a whim when installing the new unit, I tried using the new power supply from the 1824c on the old 44VSL and it worked perfectly. Apparently the old wall wart wasn't performing up to needed specs.

 

[MC2]

The power supply gives 12.1V and seems to be ok. I did not do load tests.
I still connected a lab power supply instead. At 12V power supply it drew only 0.1A, where the original power supply protects the current supply up to 3A. So I guess it looks like the interface is defective.
Unless someone has another idea?

 

[THW]

Hi there -- Also an 1824C user, though in Windows 11. It's bee an great interface over the years!


I recall a time needing to replace the USB cable. If it doesn't seem to be a power issue, perhaps it's related to the usb-c connection. Have you tried a new usb-c cable?

 

[MC2]

I changed the cable and nothing helped. The next day after booting up the computer everything started working properly.
Somehow the interface is strangely unstable. This is the second time its behavior like this. How can not predict when it will happen.
Earlier it was connected via USB-C now via USB-B and it works.
No less difficult for me to find a pattern of behavior in this.

 

[THW]

Over the last couple of months I have noticed some quirks since updating Universal Control - occasional dropped audio and need to turn off and on the interface or restart the computer. It has gotten better with the last update (it hasn't happened in weeks). However, prior to the release of the new interfaces and the older version of Universal Control -- I really can't recall ever having an issue and all was very stable. I'm not particularly technical, so I don't know if there is any causation here...but it did come to mind there might be some connection there.

My plan is to use the 1824C for as long as I can!

 

[Craig Anderton]

The power supply gives 12.1V and seems to be ok. I did not do load tests.
I still connected a lab power supply instead. At 12V power supply it drew only 0.1A,

100 milliamps seems very low for what the 1824c would require. That seems to imply a hardware problem where either something no longer connects to the power supply, or a crucial component has failed so that it no longer draws current.

Assuming the 1824c has internal connectors, if it was my interface I'd open it up and remove a connector, use contact cleaner on the pins or ribbon (or at least seat/re-seat the connector several times to clean the contacts), then re-insert the connector. I'd do this for all the connectors. It's not certain that would solve your problem, but I've been able to fix several pieces of gear that way over the years, especially when I lived in places with high humidity. I don't know if the 1824c has an internal fuse, but that's also worth checking. Good luck!

 

[MC2]

Support recommended resetting the firmware in the interface to the factory version and upgrading again to the latest one. So far, it is working fine.
So I'll leave disassembling and checking connections to myself for the occasion of the next failure

 

[Craig Anderton]

Wow, that's great! My Studio 192 had a preamp channel go bad and I fixed it with the procedure described above, so yes, put that in your back pocket for future reference

 

[MC2]

And one more question for macOS users.
Is it possible to stably “merge” in Studio One several Presonus interfaces (in this case Studio 1824c and HD8) into “one” so that they can work simultaneously in the program?
Because I'm thinking of upgrading my studio setup and either the 1824c will go on sale, or.... I will have to rethink the subject

 

[MC2]

Unfortunately, my Studio 1824c interface has just died (the computer does not detect it and only the red switch light is on, and support no longer has solutions other than a physical visit to the repair center). I am currently in the process of developing an alternative and/or backup solution.
And here two interfaces caught my attention - Quantum HD8 and Arturia AudioFuse 16Rig with new firmware.
The hardware differences between the interfaces in basic functions are not significant, and probably the biggest one is that the HD8 is 32bit and the 16Rig is only 24bit.
On the other hand, I am curious about the 3D sound formats. Arturia solved this topic with new firmware for 16Rig. So the question is whether it can also be solved effectively on the Presonus platform - using Studio One and HD8 possibly adding some additional plug-ins (if necessary) such as dearVR PRO2.
Simply as to buy a new interface is with the possibility of further development of the studio, for example, to 7.1 format or into more advanced.