Discuss Quantum Series Interfaces Here
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Can someone please help me, ive been talking to support for a week but no help..
ive tried everything, disabling crsutil, disabling sip, reinstalling, fresh OS nothing seems to work.

But sometimes the interface just decides its going to work?? out of the blue.. This is a new unit too.

I can see sound coming into and out the main outs 1 and 2 in UC but no sound from my monitros. I can confirm this is some weird bug because with the exact same setup it sometimes just works..

here's a quick video of the issue at work
https://www.swisstransfer.com/d/dda319c ... 94dac29803

Also this static noise only happens when the issue happens, so when the interface works.. the static noise is gone too..

im lost
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by ianaeillo on Mon May 01, 2023 10:11 am
What OS are you on? What Quantum interface do you have?

Studio One Pro 5.5, Studio One Pro 6.12, Faderport 16, Faderport Classic (1.45), Metric Halo ULN-8 MKIV, Presonus Quantum, Presonus Quantum 2, Ferrofish Pulse 16, (2) Digimax DP88, Audient ASP800, BLA HD192, 27-Inch Late 2012 3.2GHZ i5 32 GB 1600 DDR3, 2Tb SSD, 10.13.6 High Sierra + 10.14 Mojave + Windows 10
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by nxfdqsyh on Mon May 01, 2023 1:08 pm
ianaeillo wroteWhat OS are you on? What Quantum interface do you have?

latest ventura on m1 macbook pro, quantum 2626 and the correct apple 0.5 thunderbolt cable. If i use my mates twin x, everything works flawlessly.
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by nxfdqsyh on Wed May 03, 2023 3:24 pm
Someone please? im trying for days
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by ianaeillo on Wed May 10, 2023 2:21 am
Could you link it on YouTube? I keep getting a non private connection warning.

Studio One Pro 5.5, Studio One Pro 6.12, Faderport 16, Faderport Classic (1.45), Metric Halo ULN-8 MKIV, Presonus Quantum, Presonus Quantum 2, Ferrofish Pulse 16, (2) Digimax DP88, Audient ASP800, BLA HD192, 27-Inch Late 2012 3.2GHZ i5 32 GB 1600 DDR3, 2Tb SSD, 10.13.6 High Sierra + 10.14 Mojave + Windows 10
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by bartbalint on Wed May 10, 2023 4:57 am
Just as an outside possibility, you might try new cables/cords from your unit to your computer.

Studio One v6.5, Win11 latest build, Quantum2, Huion Tablet, ATOM, GR55, HPD-20, iRigKeys, Mackie Big Knob, Elgato StreamDeck+, 8-)
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by nxfdqsyh on Sat Aug 05, 2023 6:41 am
its fixed by rma now
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by avelinogarcia on Sat Nov 18, 2023 6:47 pm
Same issue with my quantum 4848..
Tried everything softwarewise, same results. Main issue noticed: hardware seem initialisation abnormal with panel lights lights sequentially then stop, power led dimly lighted, tb led dark -not lighted blue -, unit recognized in windows app and uc, will show activity in uc output screen. But no actual hardware sound.
Raised a ticket, done all suggestions, same issue.
Finally open the unit, measured the test points. 3.3V is ok, +VA is 13V, -VA is -13V. But +5VD is 1.9V and +5VA is 0V, and the 5v regulator ic is ST N29150, 4 pin with inhibit.
I would appreciate if anyone could provide me with q4848 schem
atic diagram so i could check if the regulator is ok or probably inhibited by any other shorts in the circuits..
Thanks in advance..

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