this is a super high quality IEM, very comfortable and isolating, with sparkly and punchy sound that lends itself best to bass-intensive recordings - whether this means reggae or rock, church organ or rhythm&blues is up to you to decide. it's a little less dependent on amplification in my opinion than the UERM. you'll be surprised to listen to a piano, for instance, on this one: it acquires bigger stomp without being thrown off balance completely. really good also with some classical recordings of big orchestras. watch the volume control, this is a very dynamic IEM!

this is my first custom IEM, and still has a special place here (in my outer ears). the shell is a bit hard but I can wear it on long flights or extended work sessions without any discomfort. it is highly revealing, and really lends itself for the most high quality recordings. always amazes me to return to it after listening on something else. highly recommended