Just picked up a Sony XBA-A3 and I want to know if it will benefit from the Aegis or Astrapi. I usually listen at high volumes and I find I get close to max on my iPhone 6+ I'm not looking to change the sound signature drastically. I'm just looking to use the a3's to their full potential while keeping my daily carry light and portable. I tested the a3's with the AK Jr. I could tell there was an improvement in the soundstage and this is what I'm looking for with the iPhone. I don't really want to carry another device so something small like the Cozoys look ideal. Any advice?