For clear upgrade over the A3/ Z5, the Z1R is clearly the one. After getting the Z1R my A3 is relegated to be a beater all rounder movie watching when i'm out and about but i dont want to risk bringing my IER-Z1R out, for me the A3 is just outclassed in everything music playback related. the A3 is still pretty fantastic for gaming and movie watching, and they are overall easier to drive than the Z1R, so I've been plugging them to my bro's PS5's Dualsense port whenever I need the privacy. PLaystation's H/O is much improved from DS4 days, they just still have over 5 ohm OuZ so i cant use my sensitive Audio Technica IEMs on them.Just got my m7 in yesterday. A bit of context before I share some initial impressions. I've been a long-time fan of the a3's and had the z5 for a week before both were stolen. I didn't have enough time on the z5 to remember in detail how they sounded, so my comparison will be with the A3 (from memory). I've been saving up for the z1r for a while but haven't pulled the trigger as I've been sidetracked with headphones and earbuds for some time. My listening tastes are almost exclusively classical music (mostly piano and violin concerti and the occasional orchestra piece. The m7's were an impulse buy and sort of a sub-conscience decision to fill the hole left by my a3 and z5. @gerelmx1986 pushed me over the edge with his picture showing the oppo ha2 with his m7's plugged in, listening to Paganini. (I love the ha2 and Paganini.)
Some quick observations after a couple of hours on them.
- The m7's are really light. I wasn't expecting them to be so light in weight. They are really comfortable, more so than the a3 or z5.
- The bass is stronger on the A3 than the M7. But the bass is much more controlled with the M7.
- both have the typical slight treble roll off I associate with the sony house sound.
- the drop off in the lower brilliance range (6k to 8k) is slightly more pronounced with the m7, and because of this, I have a really hard time hearing the concert hall ambiance. This also makes for a warmer, almost darker, sound with the m7 compared to the a3.
- the m7 is much stronger with technicality. no contest compared to the a3.
I like the m7 a lot, but can't really recommend them broadly. The main reason is the price. The m7 price point is flooded with competitors I'd recommend over the m7 -- the lz a7 and isn est50 are clear winners in the $300 to $500 market.
sad to hear you got your Sonys stolen, had a brush with something similar myself, a thief barge into the house at the dead of the night, made out with laptop bags and other easy to carry valuables, but left a case with my A3 inside alone. I guess i'm lucky that my thief aint an audiophile, I could see some sign of it being rummaged around, but I wonder why they decide to just leave it I guess the image that headset: cheap stuff is way more prevalent still.