Recently I have been playing my Boss Katana more and more through headphones, especially since both my girlfriend and I have been working from home full-time since March. It's a one bedroom apartment, so no other options really. I've been using a pair of Philips SHB9850NC so far, which are OKish, but the plastic's starting to break on one side and they're less and less useable. The way it looks I'll have to keep going through headphones for a good while going forward, so, I'm considering upgrading to a better set of headphones that'll give me a good guitar signal straight from the amp, and comfortable to wear for long periods of time. I'm assuming closed-back is the way to go, as the sound leakage from the open/semi-open could be a problem. Do you have any recommendations as to what I should look at? I've seen some suggestions for Sennheiser HD280, Beyerdynamics DT770 Pro, and AKG K240 (though that one is open back, and I think it would be too much sound leaking for my needs). I'm willing to go up to about 150$/Euro for a good pair that'll last me.