Oppo HA-1

Headphone Amplifier, DAC & Pre-Amplifier <b>Uncompromising Audio built with the latest technology</b>

The analog audio section of the HA-1 is a fully balanced design with an emphasis on keeping the audio signal in the analog domain once it leaves the DAC. The HA-1 is anchored by a hefty toroidal power transformer, and linear power regulators and filters with custom made capacitors ensure that the headphone amplifier has a clean power source with plenty of reserve energy. The fully balanced Class A power amplification section uses hand-picked and paired discrete components to ensure symmetry, and a motor-driven precision volume control knob allows for both manual and remote control volume adjustment while keeping the audio in a pure analog audio path.

<b>Class A Headphone Amp and Pre-Amp</b>
Fully balanced analog inputs and outputs, purely analog volume control, and an adjustable headphone gain switch.

<b>Toroidal Power SupplyToroidal Power Supply</b>
A custom OPPO transformer provides clean power with plenty of energy reserves.Mobile Device Support

<b>Mobile Device Support</b>
Bluetooth with Apt-X codec for high quality wireless audio and a USB input for mobile phones and tablets.ESS 9018 Sabre Reference DACESS 9018 Sabre32 Reference DAC
High resolution performance with extremely low noise and distortion.High Definition Audio Support

<b>High Definition Audio Support</b>
Numerous digital inputs including coaxial, optical, AES/EBU, and an asynchronous USB DAC input that supports PCM, DSD64 and DSD128.Display Driven Interface

<b>Display Driven Interface</b>
Physical volume and source selection knobs frame a 4.3-inch display for easy operation.