Listen to Charnett Moffett Solo Bass Works right now. Sounds fantastic. Every detail is perfectly revealed. I am a big fan of solo bass. Stanley Clarke, Marcus Miller, Renaud Garcia-Fons, SMV and more. They all sound great on the Sig Pro. And female voices like Diana Krall, Celine Dion, Barbara Streisand, Amy MacDonald, Alanis Morissette, Adele, Pink sound fantasic. The voices are prominent, never get lost behind the instruments, like on bass heavy cans. But also male voices sound great.
I love this headphone.