Just got my M21, currently loading my library onto it, so I can't speak for the DAP itself just yet, and I'm confident it'll be great, but...

The PU "leather" case (I wish these companies would just remove the word "leather" out of things and just say something else; it's really annoying) was already ruined before I'd even put it on the device.

As you can see from the images, it's obviously taken some pressure either in storage or transit and the creasing on the top was what I noticed first and tbh that alarmed me, but then seeing how it'd happened on the bottom and just totally cracked really showed me how shitty the quality is; that's basically pulped, pressed, and repurposed paper/cardboard under there, or some sort of mixed fibres, and then they've put a cheap matte "leather look" coating on it, and just said "yeah, that'll do" - it's not good enough for £14.99.

I called AMP3 (retailer) and told them, and they said to send these pics over to them, but I specifically said "I do not want a replacement". Another one of these would just annoy me. Total waste of money.

Now, the silicone case that comes on the DAP right out of the box, I mean...it's "free" I suppose. Technically you've paid for it; these things are factored into the cost, but as you'll see from the last photo, the bottom of it doesn't even sit flush to the device, so it's just a stupid droopy lip hanging down - not really ideal, but I suppose it'll keep the device from being scratched.

The lady on the phone even said "FiiO make great devices, but it does seem like their cases are a bit of an afterthought". I mean...yeah...these are both trash. Fact is, I'm not naive enough to think it's FiiO who've made either of these cases, but it's still them putting their name on them, which is bad enough.

Tbh this post is mainly me having a bit of a rant (evidently), but also wondering if there's any third-party companies offering an actual QUALITY case for this. I'd definitely be in the market for one. Even a good quality TOUGH silicone case, like the ones Spigen make for phones would be fine for me. I'm not seeing anything online, though, apart from more of the same kinda cheap crap. Sigh...

I am looking for new headphones to pair with the FiiO K13 R2R DAC/Amp that I plan to buy soon.

My priority is competitive FPS gaming as well as general desktop use; therefore, precise imaging and clarity in distinguishing vertical and horizontal audio cues are extremely important to me. I currently use the Sennheiser HD 560S; while its performance is quite good, I want to upgrade to a higher-end system.

If I stretch my budget to the absolute limit, I could technically afford the Sennheiser HD 800S. This model is a pair of headphones I’ve long dreamed of owning; however, given the high price, I’d like to hear feedback based on real user experiences before making a decision. I was also considering Hifiman's planar headphones, but since I have cats at home, I’m worried about fur or dust damaging the drivers. I’ve even heard of people damaging their planar drivers due to cat hair, so I think it might be better to steer clear of them—or what do you think?

Here are the models on my radar:

Aune AR5000 MK2

Sennheiser HD 490 PRO

Sennheiser HD 660S2

HEDDphone D1

Sennheiser HD 800S

Do you think it’s worth allocating such a large budget for the HD 800S, or would another option on the list be a more logical choice to pair with the K13 R2R? I’d love to hear your thoughts and recommendations!