Topping’s DX3 Pro has a long list of excellent specifications, and at the top are the highly regarded XMOS XU208 USB chip with dual AK4493 DACs and an OPA1612 opamp.
This combination allows the DAC/amp to drive headphones with great accuracy and power: an impressive 1,000 mW from the eighth-inch jack on the front panel.
The unit is quite versatile, too, accepting input via USB, optical, coaxial, and Bluetooth, the last of which supports SBC, AAC, aptX, aptX II, and aptX HD protocols. Looking to pair the DX3 Pro with an even more powerful headphone amp? It can operate as a DAC via its RCA output.
- 4 output modes: Headphone amp, headphone amp + line out, DAC, preamp
- XMOS XU208 + 2x AK4493 + OPA1612
- USB input supports up to 32bit/768kHz PCM decoding and DSD512 native decoding
- 2x coaxial inputs and 1x optical input support up to 24bit/192kHz PCM decoding
- Bluetooth input supports SBC, AAC, aptX, aptX II, and aptX HD protocols
- Headphone amp output power: 1,000 mW x 2 at 32 ohms, 125 mW x 2 at 300 ohms
- Output impedance: < 0.1 ohm
Bluetooth 5.0 LDAC transmission
DX3 Pro have the certification of Hi-Res Audio Wireless and LDAC,it uses CSR8675 chipset to support LDAC/AAC/SBC/aptX/aptX /aptX-HD protocol.To get even better sound quality of Bluetooth,we abandon the built-in DAC of CSR8675 and connect it’s digital signal to 2*AK4493 to decode.
Bluetooth headphone amp/Bluetooth receiver application
You can connect your phone, ipad, or laptop to DX3 Pro by Bluetooth, and then you can use a headphone to listen to the high quality music. Or you can connect DX3 Pro’ s RCA output to let it served as a high quality Bluetooth receiver.
DX3 Pro’s USB input is able to compatible with Android and lOS, no matter phone or pad, DX3 Pro’s DA will bring much better sound to you.
*The Android devices are required to support OTG USB sound card. The IOS devices are required to use special DAc cable or camera kit to connect.
DAC+ Preamplifier application
If you have need DX3 Pro cooperate with an amplifier or active speakers, you can set output mode of it to be preamplifier, then you can decode and adjust volume in DX3 Pro. The remote of it will help your operate more easily.
When you only need a simple DAC, you can set DX3 Pro’s output mode to be DAC, then it could served as a simple DAC,screen will display current sampling rate and volume will keep outputting 2Vrms.