Well, EX600 wasn't meant to be a flagship, but XBA-40 and EX1000 was. But I can see how you relate EX600 and XBA-40. Their street prices are similar. XBA40 and MDR7550 would probably be a fair comparison. XBA40 is current BA flagship while MDR7550 is current dynamic flagship. But IMO, 7550 destroys XBA40.