Opamp card is card where in XD 05 pro you could exchange opamps in amplification section of the device. There won't be any additional opamp cards. If you have damaged one or want replacements contact xduoo support. Why do you think they'd be any additional released in the first please? - if...

I am using it with AUKEY PA-D5 (rated max 63W although only 3A on 5V so theoretically 15W - but It didn't even get noticeably hot). So if your charger is not constant 65W and sth like usb plug charger you should be safe.

I'm not the electrician but usually the rating is maximum output that said device can handle. So on case of for example your phone or MUB1 the device that being charge will draw as much current as it needs. Again I'm not an electrician so I am not aware why that is but my observation is that...

It depends on the source and on the iems. On phone and BT all my iems are good at high gain up to around 60-65/100 volume max. But when playing from volumio pc the volume is so noticeably decreased that I have to use super gain up to around 75/100 volume max (but on volumio the dynamics are...

On my device at first there was little noise in the background but know there are none - don't know why. I use it on 4.4mm with he400i, hd6xx, fiio fd3, letshuoer s12, tinhifi t3pro and hidizs mp145.

It's great out of box (speaking of 3m experience). Frankly speaking ESS is the best dac on this device, but the fact that I can chang the dac on the go makes it more appealing. I usually change the chip once every two weeks. As to the op amps of you aren't into it they are good. I think many...

On amazon.de it is even cheaper than on hifigo - 419.33 eur (excluding vat). And on top of that you don't have to wait two weeks for shipping. https://www.amazon.de/dp/B0CLZWFFDP/ref=sr_1_1?keywords=fiio+ft5&sr=8-1&language=pl_PL&currency=EUR Probably a good Christmas present for myself ;).

In my case it didn't blew up. This days fast charging is operated by special chips both in charger and the device being charged so MUB1 would draw as much current as it need.

In my opinion, one can answer classically "it depends". First of all it depends on your taste, the AKM is slightly warmer and more natural (slightly), the ESS is really good and against the AKM it is more detailed, the stage is wider and deeper the holography is audibly better. *For my part...

Check here, I bought from this locally in Poland but If you ask maybe they will send to You. https://allegro.pl/oferta/wymienny-modul-dac-akm-ak4499ex-dedykowany-do-xduoo-xd05-pro-14460137721

Check if hiss I audible only on battery power. Also I think that hiss might be dependant on opamp. Currently I am using BB opa 2228p and hiss Is only audible when solar power is on in my building. Before there was small hiss audible on burson v5i.

Could you share a link or send it to pm?

I don't know if I understand correctly (I assume you mean if it is possible to display information about currently playing songs on the xd05 pro screen). - if I understand correctly the answer is no. The only information you can set is either the frequency range of the song or the current volume.

To my taste, I agree with your statement. Today is only the second day I'm using the AKM so I'm waiting first to see if there will be any burn-in (in my case that's how much my ears got used to the ROHM about 1 week, after that it sounded the same) so I expect a similar time with the AKM. ESS...

It is unlikely that they will fit, Sonic Imagery Labs is up to 10 to 12 mm wider, from the photos you can see that the sparkos fit almost touching sides.