It didn't necessarily sound bad...just not up to par compared to an old, legacy dap (the rio karma). It's all about synergy too, so for all I know the iem's I'm using just didn't mate that well. However, I also tried my old stalwarts, the 7506's and Grado SR60's, and they too sounded quite sterile...which is the furthest from their sound signatures. I'm still sitting on the bench waiting for a rio karma killer. The sansa clip is pretty close, it's a lively little dap with a healthy headphone out that mates well with iem's.