IEM or closed back for phone & USB DAC use

[SteveR750]

It's been a while since I frequented these forums, about 3 years or so. Meantime, my trusty LZ-A4 IEMs have failed, and need a replacement. In truth, I don't do much "critical" listening any more, and certainly not with headphones, so looking for something sensitive enough to be of use with a phone or USB DAC (I use the Cambridge Audio USB DAC), and needs to be isolated so it doesn't disturb others in the room! Budget up to £150, is there anything new that's appeared worth investigating? I was hoping by now that Dale Thorn's headphone bible would have been published and available from all good books stores!