I've been deciding whether to buy an M7 or an M9 for a few days, since the Z1Rs spend too much on my budget. I mainly listen to instrumental music, especially jazz, solo piano, some electro, type Autechre, Boards of Canada, Plaid ... I'm a big crush on the EX1000 and I don't know to what extent one of these two models would be an improvement or just a complement.
Thank you very much in advance!
I don’t own the M9’s or the EX1000’s.. But for the music you crave from acoustic, to Boards of Canada and Autechre, the M7 would be a great all-rounder. It has an even tonal balance with a linear response without any major spikes and dips, but it’s also never boring. In fact it is very nuanced and sounds quite engaging and non-fatiguing, at least to me.. What it won’t do is that same impactful bass like the best DD driver, on let’s say some old school Jamaican Dub.. It has great fast and extended bass though for a BA, just not as visceral.