I upgraded to these from the MSR7NC's and I'm not disappointed at all. I look for female vocals and overall clarity of sound in headphones the most. As an audiophile it's satisfying to hear instruments and other sounds in the most accurate and clear production possible and these are excellent at it. These render instruments in a precise, realistic way and it's really satisfying to hear any kind of instruments with these headphones. I've never heard instruments be this accurate before from a pair of headphones, these just excel at it. They are also a slightly V-Shaped headphone but the key is slightly, not fully. Their vocals sound awesome, especially female vocals. The vocals and the overall sound is bright and sparkly while not being exhausting at the same time. The MSR7's were too bright in my experience, the brightness was enjoyable but it would also get tiring. The WP900's have a perfect balance of being bright enough to bring out vocals and have a fun, sparkly sound while at the same time not being tiring for your ears. I can listen to any already bright songs on these for as long as I want, while on the MSR7NC's I would get tired after only 30-60 minutes of listening to bright songs. Even though these are slightly V-Shaped, the vocals on these are actually amazing and sound better than my MSR7 cans, which are known to be really bright with vocals. The vocals are just more clearer and more natural sounding, and they still get brought out especially when it's anything with female voices. The sound overall is perfectly clear and I'm hearing sounds/instruments I've never heard of in the same songs before. They bring out every single detail a song and render the song exactly how the artist intended it, without overdoing anything. The MSR7's were not too neutral as they were overly bright, and these are definitely more neutral sounding. The WP900 also has the minimal bass you need for music such as hip-hop. The bass in these is solid and comes out as natural when needed, but it's not overdone like on many other headphones. These don't have thumpy bass like so many other headphones so if you're looking for headphones that will thump your heart with bass these are not for you. However, their bass is still there and more than enough for people who aren't bass-heads. There's also a good sound isolation and these also block outside sound well without having anything weird like ANC in them. Overall the sound is awesome for anything, but it is especially awesome for anime, feminine songs and movies. And even more for a feminine anime voice/vocal. The soundstage is the best I've heard in a closed-back. These also excel at it and there's great instrument separation. If you're coming to these from an open-back, you probably won't be dissapointed in how good the soundstage is. The sound signature is a fun, unique one. These will sound really weird at first and hard to listen to, but that's because the sound signature of these is not like other headphones. These have a special sound render that can make any song more fun to listen to while sounding accurate and clear. You just have to burn into them. It's real and the more audiophile a headphone is the more weird they sound at first. These have the same specs as other high-end/expensive audophile level headphones and there's a lot going into your ears, even though you can't process all of those frequencies. They sounded really weird to me at first and I even thought of returning them when having them for the first few days, but after about 2 weeks of using them I was getting used to their sound and that's when I realized I made the right choice to not return them. I was having an orgasm to my ears with how great these sounded to me, after I was starting to get used to their sound signature. As more time passed by, I was enjoying them more and these headphones have got me to listen to music all day. Now after having them for 30 days, these are like an eargasm to me everytime I put them on. When you get these, they'll sound strange at first but just let yourself and your ears burn into them before judging them. Amazon gives you 30 day returns, so you have plenty of time to get used to their sound and determine if you will enjoy them. Just give it a try for at least three weeks and trust me, you'll be happy. I recommend using a DAC with these, they do not need much power so there's no need for any AMPs and you can easily use these with any smartphone or any device in general. I still recommend a DAC with these just to get the best out of their amazing sound. You don't need to use the balanced wire that comes with them, but using a DAC to render audio will help you get the best of any audiophile headphones in general, not just these. Anyways enough about the sound. The sound is excellent, but that's not the only advantage you're paying for. The wood on these headphones just gives a feeling I cannot forget. It looks beautiful, it feels premium and makes you feel like a classic person. Once you feel the wood in person you can just never go back. Wearing these outside will bring you attention from people and it will put a good impression because these just look so great and appealing. You not only get amazing sound with these, but you also get amazing looks and feel while wearing these classy cans. The wood and design overall is what makes it unique and more on the old fashioned side. These are also fully comfortable. They are light like a feather and you will forget you're wearing headphones often. Their earpads are comfy and will not create any pressure on your ears no matter how long you wear these for. Even the MSR7 cans, which have thicker earpads than these can hurt my ears but these never do. The only downsides of these I can think of is the wires they give are a little short and the padding on top is thin, but those are just minor and not much compared to the positives about the WP900. I highly recommend getting these if you want sexy audiophile headphones that have fantastic sound and are also fully portable at the same time. These are probably the best portable headphones you can get, because they push the limits with how good they sound, while being portable and working anywhere with any device, and having no requirement for external power.
