That is a good point about the price difference. Does the er4s have a good enough advantage over the triple.fi to justify two iems, one for classical and one for rock?
My music collection is in flac and is about 3 parts classical (orchestral all the way down to solo):3 parts rock:1 part soundtrack:1 part classical vocal/chorus:1 part other (r&b, jazz, pop, rap, electronic, folk).
With the diversity found in my library, would I be better off with the er4s and a dap and add another more rock oriented iem down the road such as the sure 530? Or would I be better off investing in the triple.fi? I want a more analytical iem so I can listen for the slight differences in various classical passages and hear the individual instruments.