Is curious, the m3 wireless is my favourite anc headphone in the sound quality after I trying in several years much anc headphones (qc35, qc35 II, qc20i, nc700, Sony 1000x, xm2, momentum 2, pxc550, h9, h9i, h9 3g, h8, new dali io-6, new mw65, px, new px7, new beats solo pro and new apple EarPods pro), and this is first time I posting in this thread.
I deciding posting because I have big disappointment with majority of anc headphones or earphones recently. Recently I trying h9i, h9 3g, qc35 II, nc700, mw65, px7, dali io-6, beats solo pro and AirPods pro. I posting first again after long time in px7 thread because my favourite sound is from b&w p7 wireless but this isn't anc headphone and I thinking previous px model is very bad sound and I have good hope for the new px7. The px7 is big disappointment and I deciding starting posting again for this reason. Then I trying mw65, then dali-io6, beats solo pro and airpods pro. Now is good time for I posting here.
Today my favourite sound is very clear: m3 wireless. The number 2 probably is qc35/qc35 II but is problem for me the plastic ear pads too that is make my ears very hot or sweating. My number 3 or maybe number 2 (because I don't comparing directly) is AirPods pro. AirPods pro is earphone and is better sound than much very more expensive anc headphones in my opinion. Is really fantastic job from Apple, but for people who thinking they audiophile isn't easy admitting AirPods pro is excellent product and sound.
M3 isn't perfect. How is really possible sennheiser giving completely ridiculous terrible mediocre case for this very good premium headphone?!! The battery of 17 hours isn't bad completely but today isn't exactly completely good with the competition. The minimum good battery today is is 20-22 hours in my opinion.
And the company more famous in the world of headphones why is using very bad ridiculous EQ in the app? Sennheiser having money for giving simple and good 5 or 7 bands EQ that is easy for using and very better with numbers and is looking more serious and professional like the design of the headphone (little retro/classic). But I'm happy because the default sound isn't perfect but is very very good.
Much people criticise the anc in m3. Yes, isn't strong like bose and sony, but other headphones with not good anc changing the sound when anc on or off very much (h8, mw65, h9, etc). m3 wireless is very good sound with anc on, off or ambient mode. I love ambient mode.
One big suggestion the next time for sennheiser is please looking at control buttons of p7 wireless and copy the perfect position and the feeling in the fingers. I changing volume and songs very much and the buttons in m3 isn't always easy recognising what is what, In p7 wireless (3 years old) is completely perfect.
Please also giving more volume steps for volume up and down. P7 wireless having many steps and is very good for small change in volume. In the iPhone m3 is bad because volume suddenly going 3 steps up very loud or very low and is necessary to do opposite for compensating this, so immediately after big jumping in volume is necessary going down 2-3 steps and iPhone having only 16 steps. bowers & wilkins is best in this aspect. I surprise very much because sometimes I think the manufacturers don't looking or listening at competition.
But the sound of the m3 is very very good, the construction is very solid, the design is very good, the comfort is great, the logo isn't showing from 20 kms (like b&w), the ambient mode is excellent, the call quality is good too and connection very quickly.