Signal To Noise Ratio:105
Dimensions (WxHxD):148. 5 * 98 * 33mm
Body Material:Aluminum
Operational Amplifier Chips Model:LM49720
DAC Model:ESS9018Q2M
Channels:2 (2.0)
Package:Yes
Output Power:500mW/1000mW 32Ω load
Model Number:DAC-A5 Pro
Type:Professional Amplifier
Recommended Headphone Maximum Impedance:501-600 Ohm
Built-in Battery:No
Output Type:LINE OUT (AUDIO OUT),Balanced Out
Input Type:USB,COAXIAL,OPTICAL
Origin:Mainland China
Certification:CE,FCC,RoHS
PC-USB Chip:CM6642
Relay:NEC
Headphone Amplifier Chip:TPA6120
Feature 1:Headphone Amplifier
Feature 2:Audio interface

Note: please downlod the driver before operating DAC-A5 PRO if your system is Window 7.
https://www.mediafire.com/file/xffmyytamgcbbb5/B2D2326.rar/file
Parameters:
PC-USB input Sampling Frequency: 192K/24Bit
Optical/Coaxial input Sampling Frequency: 192K/24Bit
Frequency Range: 20H-20kHz (±3dB)
PC-USB System supported: XP/W7/W8/10/MAC/linux
THD: 0.01%
Headphone Max power output: 400mW 32Ω load
SNR: ≥105dB
Headphone matching impedance:16-300Ω
Product Dimension: L148.5 * W98 * H33mm
Working voltage: DC12V
Product Weight: 0.35kG
Output level: 2V
Basic edition operation steps:
1.Make sure the VOL turnto the minimum.
2.Connect the external back-end equipment to the output interface of sound source.
3.Connect the sound source that needs to be used.
4. Connect to power.
5. Press the power switch.
6. Press the input signal selection switch to select the signal (the default input of boot is
PC-USB)
7. Turn the VOL button clockwise to select the desired volume.
8. If the headphone head is 3.5mm, it can be connected with the 6.35rpm 3.5mm adapter configured
by the manufacturer(to use RCA analog output, unplug the headset and unplug 6.35 to 3.5 heads)
Operation steps with Bluetooth version:
1. Make sure the VOL turnto the minimum.
2. Connect the external back-end equipment to the output interface of sound source.
3. Connect the sound source that needs to be used.
4. To select bluetooth mode, you need to switch the input channel to bluetooth mode for pairing
connection.
5. Connect to power.
6. short press switch, again short press select input channel,long press switch it off
7. signal (coaxial/optional/pc-usb/bluetooth)
8. When connecting AUX input in any input mode, it disconnects the current input and jumps
to AUX input
9. Turn the VOL button clockwise to select the desired volume
10. The RCA analog output will automatically disconnect when connected to the headset output,
such as the headset.
PC-USB Operation Instructinos:
1. Connect the PC-USB interface of the rear surface of the machine with factory provided USB cable
(USB can support hot plug)
2. Press the input signal selection switch to select USB input.
3. The following photo shows the icon with horn symbol in the lower right corner of
PC
4. Right click to pop up the dialog box and click 5. Select the playback device recognized by PC in the pop-up dialog box (USB of this machine is
automatic identification, no manual installation and drive).
6. Click to confirm the identified digital output.
Package list:
1* Headphone Amplifier
1* Cable
1* User's Manual
1* 12V Power Adapter (Optional)