I'm skeptical of the capacity claim of 4500mAh there. The original is 3400mAh. If the battery is of a larger capacity, that shouldn't be a problem. There are other batteries with wires instead of alu tabs, you may know of them already. I just replaced the battery in mine. Got one with leads...

I just tried some of the downloads and they work fin here. I tried straight from Europe and with VPN via Europe and the USA - all works fine. If using FireFox, it stops the download and throws a warning saying that it's not a secure download (http instead of https), but you can choose to...

It's all on their forum site, here: https://forum.fiio.com/note/showNoteContent.do?id=202105171718501451453&tid=21

Mine is perfectly stable with the latest fiio music app (3.0.9). I run the jkbuha custom kernel though (link here). BTW, I discovered that efter installeing 3.0.9, the app's data and cache must be cleared, or the app would just hang (I've seen other report this, and some even did full firmware...

A year on I can conclude that the 250Ohm mDT-880 on X5 iii works just fine as long you deem it loud enough, which I do. There's more than enough power for my (hearing safe) listening, and there's no diminished sound or anything.

No of course not, it does 8V, as mentioned. This has nothing to do with battery tech. The voltage of a battery is pretty much irrelevant since DC-DC converters eliminate that as an issue. Well, I'm far from tone deaf. In fact my hearing is pretty good for a 50++ year old. I'm also a hobby...

Well, DC-DC converters are used in all kinds of portable gear to get any voltage you want. E.g. the Fiiio X5iii has a 3.7V battery, but 8Vpp amp output. The S/N is so high in today's equipment that it's of no concern to me. The X5 is far better than my ears in this regard. I'm beginning to...

Wouldn't mind a pair of those. That would certainly be loud enough with another 6 dB in efficiency. I'm on a budget though, and just got the 880s for allround use, including with the DAP. Hence the interest in a dirt-cheap try-out amp, or maybe simply finding out if that isn't necessary.

Thanks for chiming in, PaganDL! :) Yes, of course. I thought it best to look away from those finer aspects for this question, and focus on the drive capability and FR. Well, the DAP itself has these specs for the 3.5mm TRS output: Max power: >= 26mW @ 300Ohm Max voltage: 8V pp Max current...

No takers? OK, I will go further. A widely made claim I'm reading is that without an (extra) amp the DT-880, or high impedance / low efficiency cans in general, will sound "anemic", which I suspect is meant as "weak bass" or "lack of dynamics". It's only when your amplifier actually runs out...

I've just got a DT-880 Edition 250 Ohm headset. My DAP is a Fiio X 5 III. I was previously using a pair of DT-901s (closed back, 250 Ohm) with the X5iii. Very nice, but they're old, not that mechanically solid and they creak a bit when I walk with them on my head, so I got the DT-880 based on...

Edit: silly user error (can't find a delete post function)

Almost. There's a few more steps. I used this guide. Just follow every step, and it'll work out fine.

Thank you @WitzyZed - that's a lot of good info! The 3.41 kernel @ 1416MHz is what i ended up with, and it all seems to run smoothly here. The only niggle with the OS so far is the drop in USB transfer speed when entering display sleep mode, and also the loss of ability to get the USB mass...

I'm in the process of installing the custom kernel - very exciting :) Big thanks to @jkbuha and @prispewnic for undertaking such an ambitious project and sharing it! I'm unsure which kernel version to install though - my main concern is battery life... Is there an significant difference in...

Hi fellow music lovers! I finally got myself a decent DAP, a FiiO X5 III, and thought it was time to sign up here :)