This is a drop for the O2+ODAC combo with Rear Power. At checkout, you will have the option to upgrade to an aluminum knob ($9.95) or a 6.5mm output as well as an aluminum knob ($34.95). There is also a limited amount of 220V power supplies available ($24.95). This is the only drop of the O2+ODAC that will happen this year, so act quickly to secure your pair.

Drop quantity is limited to 100 units. Shipment of the O2+ODAC combo will be first come, first serve. Each unit offered in this drop will be handmade. Units are expected to ship out in full within 1 month.