The Alpha diverges from Adv's budget models as a $ 499 full - sized headphone sporting proprietary single - sided 96
mm planar magnetic drivers.
As the name implies, these use tiny 30
mm planar magnetic drivers to produce sound which is pretty impressive for a pair of in - ears.
The Monolith M1060 is a beast of a set of headphones, weighing in at 1.1 lbs (500g) with enormous ear cups, mostly - metal and wood construction, and 106
mm planar magnetic drivers.