So this is what I heard with the Isine 10 & 20 hooked up to my HTC 10 and Elemental Watson using FLAC and a flat eq on poweramp alpha with a bass boost on the dial of 30% and a treble boost on the dial of 30% and a boost on stereo expand of 20%. So firstly I listened to the Isine 20 and wow, I was truly impressed, the soundstage was immense and that already blew my away, but then came the vocals, I heard no werid distance or recession in the mids. The mids were actually nicely upfront, crystal crystal crystal clear, listening to Wu Tang gravil pit proved this. On my Oriveti New Primacy, this song sounds very good vocals are clear and it all sounds nice but the Isine 20 was just in a whole new different league. The bass was amazing, extremely punchy, amazing textured and layers for days. The treble was of very nice quality, didn't feel like it was lacking but i'd call it smooth and relaxing like a true planar. Overall I was in love and yes I listened to many more headphones including, the LCD3, Oppo PM1, Beyerdynamic Amiron, Sennheiser HD800, Pioneer SE Master 1 and the Grado PS1000e, all listened with the Watson and HTC 10 with the same Eq settings. All were impressive but I was just in love with the Isine 20. What was next? Well I decided to try the Isine 10. At first listen I noticed sound is slight smaller but defs just a tad, instrument separation was stellar but then something just made me smile like a mad man. The energy the Isine 10 have compared to the 20 is a step higher. The treble was slightly more lively, more energetic and kinda felt more extended?.?. The mids were still nicely upfront and extremely clear but the bass. The punch was slightly softer but I mean this in a good way as I felt the Isine 20 could give out maybe a little to much and become fatiguing after a good while, but my oh my way the sub bass the most impressive thing I have ever heard in my entire life. Layers, textures, details, speed and the pure quality I was hearing was out of this world. I was ready to pull the trigger and buy them immediately but unfortunately I don't have the money
. After all this listening, I decided to use the Cipher cable on my friends IPh8, and yes the 10 & 20 sounded very nice indeed which would be good for portable use, maybe the treble was just slightly to energetic but that could be eqd down easily, but did the cipher sound as good as the Watson? No where near it. So please ladies and gents, I really need to know how similar the M300 sound to the 10 or 20. Use same eq for all iems and tell us what differences you hear. We are all eagerly waiting. If the M300 can be as good or even better then the Isine 10 or somewhere inbetween the 10 & 20. Im sold 100% no questions asked