This document describes a Digital to Analog Converter with a built-in Headphone Amplifier and Bluetooth V5.0 Receiver.
Function Description:
This device is designed for both home and professional audio signal switching. It converts coaxial, Toslink digital audio, or Bluetooth signals into analog L/R stereo audio and a 3.5mm jack audio signal. It also features a headphone amplifier for direct audio output to headphones. The Bluetooth functionality allows for wireless connection to mobile devices and supports phone calls through a built-in microphone, with controls for answering, ending, and declining calls via a selector button.
Important Technical Specifications:
- Input: Bluetooth, Coaxial, Toslink
- Output: R/L stereo, 3.5mm jack headphone
- Bluetooth Version: V5.0
- Bluetooth Decoding Mode: APT-X, AAC, SBC
- Bluetooth Protocol: A2DP V1.3.1, AVRCP V1.6, HFP V1.7, HSP V1.2
- Bluetooth Distance: >10M
- Optical/Coaxial Input Audio Format: PCM / LPCM
- Optical/Coaxial Input Sampling Rate: 32, 44.1, 48, 96 and 192KHz
- Headphone Amplifying Power: 125mW x2 @ 32Ω
- Suggested Headphone Resistance Range: 16-300Ω
- THD (Total Harmonic Distortion): <0.0003%
- Frequency Response: 20Hz - 20KHz
- SN (Signal to Noise Ratio): >120DB
- Operating Temperature: 0°C to 70°C
- Operating Humidity: 10% to 85% RH (no condensation)
- Storage Temperature: -10°C to + 80°C
- Storage Humidity: 5% to 90% RH (no condensation)
- Power Requirements: External Power Supply Via USB cable
- Power Consumption: Max=5W
- Dimensions (LWH): 85 x 100 x 28 mm
- Net Weight: 119g
Usage Features:
The device features a front panel with an input selector for optical, coaxial, or Bluetooth signals, along with corresponding LED indicators (Bluetooth signal LED, Toslink signal LED, Coaxial signal LED). It includes a headphone jack, a gain switch for output audio, and an ON/OFF selector and volume control knob.
The rear panel includes a Micro-USB DC 5V input for power, L/R analog stereo audio outputs, a coaxial digital audio input port, an optical digital audio input port, and a Bluetooth antenna.
Connecting to Bluetooth:
- Power on the device and switch to Bluetooth input. The No. 1 Bluetooth signal LED will light up and blink blue.
- On your mobile device, enable Bluetooth, open your mobile phone's Bluetooth settings, and pair with the new device.
- Select "GVAUDIO" from the device list. Once connected, the No. 1 Bluetooth signal LED indicator will stop flashing.
Bluetooth Call Answering Instructions:
The device has a built-in microphone and supports phone call functions via Bluetooth.
- Answer a call: Press the select button.
- End a call: Press the select button.
- Decline an incoming call: Press and hold the select button for 4 seconds.
Important Note on Digital Audio Output:
The Bluetooth DAC S/PDIF input only supports PCM and LPCM audio signals and does not support Dolby, DTS, or other surround sound signals. It is crucial that the digital audio output of your device defaults to or can be set to PCM/LPCM output. Otherwise, the sound output will be noise/static.
Maintenance Features:
To ensure a long lifetime for the machine, please adhere to the following instructions:
- Place the machine away from damp, high-temperature, dusty, and oxidative environments.
- Protect all parts from strong shakes, hits, or falls.
- Do not touch the power adapter with wet hands.
- When disconnecting from the socket, hold the power adapter head and do not pull the power cord.
- Turn off the power when the machine is not in use for extended periods.
- Do not open the cover or touch the internal parts.
- Use only the original factory power adapter.
Package Contents:
- 1 x Audio Converter
- 1 x Antenna
- 1 x USB Cable
- 1 x User Manual
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