Focal Stellia Headphones, iBasso DX300 with Burson Conductor 3R

Just received the item but so far love the sound and build quality. Not sure what the additional op amps are for though. Would be good if we additional information on this.,

Just received the item but so far love the sound and build quality. Not sure what the additional op amps are for though. Would be good if we additional information on this.,