OAD is a performance-oriented company that strives to advance state-of-the-art music reproduction at all times. Driven by genuine advances in technology and performance, the OAD brand uses Ultrafidelity as both its trademark and hallmark, as this underpins everything that we do.

OAD products offer outstanding value for money without any compromises in music reproduction. For example, we use: non-ferrous chassis to preserve the integrity of the electromagnetic signal; custom made bulk metal foil resistors (originally designed for the aerospace industry to provide the perfect resistor) in selected areas of the signal path; and direct coupling to remove all capacitor colouration.