Oppo HA-1 - User Manual

HEADPHONE AMPLIFIER HA-1
USER
MANUAL
USB
Made for

Summary

Safety and Compliance Information

General Safety Instructions

Read, keep, heed instructions; avoid water; clean dry; ensure ventilation; avoid heat sources; check plugs; protect cords; use specified accessories; unplug during storms or long periods; refer servicing to qualified personnel.

Precautions

Ensure correct voltage supply, use protective earth, be aware of continuous power, unplug when unused, hold plug when unplugging, ensure ventilation, avoid direct sunlight/heat.

Setup and Installation Guide

Front Panel Controls

Identifies and describes front panel components: Power Button, Indicator, Headphone Jacks, Source, Display, IR Sensor, Volume Knob, Mobile USB.

Back Panel Connectors

Identifies and describes back panel connectors: Analog/Digital Inputs/Outputs, Triggers, AC IN.

Remote Control Operation

Remote Control Buttons

Lists and describes functions of remote buttons: POWER, MUTE, VOLUME, playback, input selection.

Connecting Headphones

Headphone Output Options

Connecting headphones using 6.35mm or 4-pin XLR connectors, including adapter use and gain adjustment.

Balanced Headphone Jack Pin-out

Details the pin assignment for the 4-pin XLR balanced headphone jack.

Pre-Amplifier and DAC Usage

Audio Input Connections

USB (Type B) Audio Input

Connecting a computer via USB-A to USB-B cable for digital audio playback.

Bluetooth Connectivity

Bluetooth Pairing and Connection

Instructions on pairing and connecting Bluetooth-capable mobile devices for audio streaming.

Basic Operations Guide

Power On;Off and Display Modes

Covers powering the unit on/off and understanding the front panel display modes (Status, Spectrum, VU Meter).

Source Selection

How to select active input sources using the Source Selector Knob or remote control buttons.

Volume Control

Instructions for adjusting volume using the knob or remote, and its behavior when powered off.

Advanced Settings and Operations

Home Screen Selection

Headphone Gain Adjustment

Adjusting Headphone Gain

Home Theater Integration

System Integration Example

How to integrate the HA-1 into a home theater system for stereo and multi-channel audio.

Bypass Mode Configuration

Support and Reference

Troubleshooting Guide

A chart to help resolve common operational problems and their solutions.

Technical Specifications

General Specifications

DAC and Pre-amplifier Performance

Headphone Amplifier Performance

Oppo HA-1 Specifications

General

Product color	Black
Pre-out connectivity	Yes
Power source	AC
AC input frequency	50 - 60 Hz
Power consumption (typical)	70 W
DC-in jack	No
Audio (L/R) in	1
Headphone connectivity	6.3mm

Weight and Dimensions

Depth	333 mm
Width	254 mm
Height	91 mm
Weight	5900 g