Lurk650
Headphoneus Supremus
Strange, *knock on wood* but I haven't had any issue with mine. Though, I don't use it as a USB DAC.
Strange, *knock on wood* but I haven't had any issue with mine. Though, I don't use it as a USB DAC.
Was audio actively playing when you plugged in the headphones?I have gone through 3 replacement devices, and I'm now on my 4th one and it just died minutes ago. I'm using it as a USB DAC with my IE80's on my PC and I just went to plug my headphones in and it died on me. I get a loud popping and rustling noise through the headphones and it's clearly damaged.
Was audio actively playing when you plugged in the headphones?
There is a warning in the EarStudio app:
I haven't been able to replicate it. I use it weekly on both my PC and while I'm at work (on bluetooth). I have a pretty high end setup with a nice Seasonic power supply and MSI Z370 mobo. I can't imagine that would cause any issues.
Has in broken while on bluetooth, or only while on USB?
I only use mine on bluetooth.
I have not used it as a USB DAC, but for 8 months using with my phone - no problems. I wish you were not having that problem. Good luck.I haven't been able to replicate it. I use it weekly on both my PC and while I'm at work (on bluetooth). I have a pretty high end setup with a nice Seasonic power supply and MSI Z370 mobo. I can't imagine that would cause any issues.
I have not used it as a USB DAC, but for 8 months using with my phone - no problems. I wish you were not having that problem. Good luck.
It's all to do with Radsone's 'Dual Drive' techWhat does this "audio output lock" do exactly? It shouldn't be a hw lock, so how it would protect the device?
Btw, I would be glad to see headphone/earphone profiles in the app, where, by selecting a profile it would adjust the EQ, volume limit, output level estimation in one step.
I'm using an MH751 at home through the 3.5 jack and a Tin Audio T2 at work through the 2.5 jack, so I would just select the correct profile in the app, and go. Or if it could sense the connection, it could also select the profile automatically.
Check me on this: I think the 3.5 mm jack has a switch (or other means) that detects insertion.It's all to do with Radsone's 'Dual Drive' tech
When you insert/remove a plug you can damage the unit as it tries to switch automatically and when music is playing you'll get a warning. By setting the output to 'Locked' you can avoid that issue by stopping it from trying to switch
That sounds like a good idea for a future firmware updateCheck me on this: I think the 3.5 mm jack has a switch (or other means) that detects insertion.
Without locking, when there is no plug inserted in the 3.5 mm jack, the unit assumes that we're using the 2.5 mm jack, and inverts L+ and R+ to L- and R- on Ring 1 and Sleeve of the 2.5 mm jack.
The moment you insert a TRS in the 3.5 mm jack, L+ and L- are shorted, and R+ and R- are likewise shorted. Bridged mode, apparently, doesn't kick in before those connections are made.
Hopefully, the output at that moment before the 3.5 mm plug is detected is small, as the output impedance is relatively low. Locking is a bit inconvenient, if you're switching between those outputs often, but I prefer the present configuration over "paying" for extra relays (battery power, BOM cost, board space, and impedance). I really think that the locking should always kick in after leaving the Audio Output menu.