Hmmmm, that's hard the AKG, and open AT line compete soundstage wise but the AT has less bass imo, and supposedly the AKG also has less bass, have not personally tried the AKG line though. Maybe the hd 600 or hd650 but both of their sound stages are smaller than the 598, good soundstage still but smaller. What would your budget be? I have an odd feeling someone may suggest a good closed back. That mdr 3k talked about earlier sounds like something worth looking into if it fits your budget.