I'm looking for a good cheap (~$75) IEM that's available to Canadians. Will be used for commuting/studying/workouts listening to hip-hop, rock, classical, jazz. It obviously must sound pretty good but must not need an amp to do so and also must be durable. Comfort varies from person to person...

I'm looking for a DAC/AMP to output to either DT880, HD650, K701 (haven't decided yet). I listen mostly to classical, rock, jazz and pop. I also use headphones for watching movies and games. So my criteria for selection would be less than $500 and must be Linux compatible. It should have...