I think it's overall easier to make a more smooth v-shaped frequency response, but that cancels out a bit by sheer db you have to change which might cause distortion (never heard, never cared for it, would be cool to do a noise blind test sometime in the future). This hobby is so bs, you literally can't trust anything

Something closest to neutral or harman is usually the easiest to EQ assuming the driver is of equal quality. Even if you hate that FR target it's a great baseline to work off of.

Not sure if you mean in technical ability like mids are easier to boost than lows and highs?

[deleted]

It's just to have room for higher SPL and don't have to put too much pre amplification before EQ to avoid the need of amplifier.

Yeah.... No

My TH900 is super V shaped, but i like it that way. If i want a neutral curve i'd pick my hd600.

That's why I sold my Grado RS1. I simply coulden't tame them without ruining the sound.

Depends how you like to eq, quality of drivers and its own tuning mostly,if driver is good so it can handle this EQ and if base tuning is more even say no hursh peaks on the graphs ,yeah they are EQable cause you don't push it on the limits mostly you tune down thing... basically when you tune something really flat you need more bass or treble,eq eventually put more stress on the drivers and sometime it cant handle it...

Realistically, the size of headphone drivers and the proximity to the ears all increase the difficulty of making a excellent harman target headphone. This is why you see things like Susvara or HE-1 demanding some of the highest prices. A 3" speaker driver on the other hand, can easily get 95% to harman targets and a multitude of other potential sound signatures. So consequently, if you have a headphone that is leaning towards Harman but doesn't quite make the grade, then it can be hard to find a good profile from that point. Sometimes you find a EQ that sounds good but then realize another part of the FR became imbalanced. So a headphone that is more V shaped or imbalanced to begin with, can perceptually be more "fun" to EQ but NOT because it's accurate. It's more fun because it's less linear to begin with. There are other sound targets that people can tune to. I would say that many ZMF headphones (excluding some, auteur is more harmany if i remeber right) go for a more linear treble response with 6khz being a distinct peak. Meze Lirics also have a very good spin on a neutral U shape, which creates a good sound profile. So not saying it's wrong, but a harman headphone will technically still be more accurate, yet the results will probably be more underwhelming.