Nope, different shell material (zinc alloy vs aluminum), and different drivers as well. The vent holes are also different between the 2 models. The sound is 'kind of' similar between the 2, but I prefer the EDR1 much more. To me it sounds cleaner, less grainy vs the EDR2, has deeper extension on both ends, and is a little more v shaped. I have about 8-9 EDR1s and only 2 EDR2s. The EDR2 isn’t poor by any means, but when I let people hear the EDR1, the typical reaction is “wow” or “holy s*it, how much did you say this cost again?”. I’ve never heard that reaction from anyone on the EDR2.