I consider myself to be pretty unsophisticated in terms of evaluating the sonic performance of headphones, so my evaluation of these will be general and probably too vague for discerning audiophiles.
Anyways, I got these because they only cost $70 at Brookstone (I got it at the retail store), and I had read that their design is akin to the Radius DDM2, and, based on the reviews of the Radius DDM2's sound, I thought I'd really like it.
Perhaps surprisingly, I found that I enjoy listening to the Brookstone Clear Dual Drive more than listening to my TripleFi 10, MTPC, Scosche IEM856 (hybrid dynamic/balanced armature) and Westone 4. The BCDD beat all the rest in that the sound was how I like it: bombastic, huge, bassy, dynamic.
Of note, I used the Monster Gel-Filled Supertips on the BCDD.
Later on, I bought some silicone ear plugs and smooshed it on the earphones w/o any tips, being careful to not let it get into the nozzle tips. This made it sound even better, i think partially because i was able to push the earpieces deeper and because the isolation was better.
