I've just picked up my first headphone amp and DAC (NFB-5.2) and thinking about new open cans now that power isn't an issue. I have the AD900s at the moment and love their spacious presentation and detail retrieval, but I'd like more bass presence. I like a fairly neutral and accurate sound, but definitely lean towards energetic and fun so long as detail and staging stay strong. Any recommendations for an open can that fits this description under $500?
Senn HD 650.