Qudelix-T71 Thread | 8V RMS, PEQ & 7.1 Surround USB DAC/Amp
Feb 26, 2024 at 8:22 AM Post #317 of 433
Anyone tried pairing it with Sennheiser HD800?
And use some negative gain on preamp so I can add like 4-6db of bass boos with eq.
I use it almost on daily basis with my HD800s with an EQ which has 6,5db of bass boost and a negative preamp of -7db. It drives It without any problem on normal gain. You shouldnt have any issues unless you listen to unhealthy levels.
 
Last edited:
Feb 26, 2024 at 9:17 AM Post #318 of 433
My T-71 suddenly won't turn on anymore. Anyone else had this happen?
Yes, after a firmware update. You probably just need to for reset it:

The T71 firmware could get into unexpected corner cases, and T71 can be locked and unresponsive.
• In this case, please press the orange button for 10 seconds.
• It will reset the system forcibly.
From the manual, page 14. https://drive.google.com/file/d/1zXtwc2wmOe_ArqTDASqQwQ7wcx0nwrl8/view

If that doesn't work contact Qudelix support, they are excellent to deal with.
 
Feb 29, 2024 at 4:24 AM Post #323 of 433
Looks like with the new FW the product ids changed (again). Here are the new rules for Linux users:

# Stereo / 384 KHz / FS 44.1x KHz with MIC
KERNEL=="hidraw*", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="7330", MODE="0666"
# Stereo / 384 KHz / FS 48 KHz with MIC
KERNEL=="hidraw*", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="7331", MODE="0666"
# Stereo / 384 KHz / FS ALL
KERNEL=="hidraw*", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="7332", MODE="0666"
# 7.1 Surround / 96 KHz / FS 44.1x KHz with MIC
KERNEL=="hidraw*", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="7310", MODE="0666"
# 7.1 Surround / 96 KHz / FS 48 KHz with MIC
KERNEL=="hidraw*", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="7311", MODE="0666"
# 7.1 Surround / 96 KHz / FS ALL
KERNEL=="hidraw*", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="7312", MODE="0666"
# PS5
KERNEL=="hidraw*", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="7400", MODE="0666"
# NSW
KERNEL=="hidraw*", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="7401", MODE="0666"
 
Last edited:
Feb 29, 2024 at 8:06 AM Post #324 of 433
Hey guys, I just flipped through the 22 pages. Interesting device. I have got the Quloos MUB1 as well as the Calyx K in my possession. Anyone here who can say something to the 2-channel output of the t71? How is the „normal“ stereo sound compared to similarly priced DAC dongles?
 
Mar 1, 2024 at 3:41 PM Post #328 of 433
Hi, guys. Im having a couple lf issues with my T71 after the update.

First one and most important, when I use UAPP on my phone, It sounds at a very low volume. It was totally fine before the T71 firmware update.

Second one it's not important and I could be wrong, but I think that before the update, my screen was turning off completely. With the new update, the screen doesn't show anything, but the backlight is still on.

Anyone experiencing the same?
Thanks!
 
Mar 1, 2024 at 3:50 PM Post #330 of 433
Hi, guys. Im having a couple lf issues with my T71 after the update.

First one and most important, when I use UAPP on my phone, It sounds at a very low volume. It was totally fine before the T71 firmware update.

Second one it's not important and I could be wrong, but I think that before the update, my screen was turning off completely. With the new update, the screen doesn't show anything, but the backlight is still on.

Anyone experiencing the same?
Thanks!
There is something weird in the two channel mode. Was it always like this (instead of L and R, we have FL, M and FR)?
1709326282839.png
 

Users who are viewing this thread

Back
Top