Silly we're still talking about the HP-150 / 151. Soundmagic has just released their HP-1000! I'll be soon receiving a demo unit to me for a review and I will post a link to it here a while after I'm finished with a thorough evaluation with multiple amps. They spent 3 years designing it and so far it's got 5-star reviews. It goes for about $320 but Amazon is having a sale at the moment.