CMD-23 9038Q2M Full Balanced Headphone Amplifier DAC Audio Bluetooth 5.0 DAC DSD512 Assembled

CMD-23 9038Q2M Full Balanced Headphone Amplifier DAC Audio Bluetooth 5.0 DAC DSD512 Assembled

Description:
The decoder adopts dual ES9038Q2M decoder chips supports 5 kinds of audio input, complete functions, convenient power supply, and the sound quality is not inferior to large desktops.

Attentions:
- It is recommended to use balanced earphones as much as possible, and use balanced to single-ended 3.5 or the like, the amp performance will be greatly reduced!
- Bluetooth antenna can be installed on the antenna base, and it does not need to be tightened, otherwise it may drive the wires inside the base to rotate and cause the wire to break and fail to receive signals.

Features:
- Light-touch power switch, and there are power-on and standby indicator lights.
- OLED screen display, high contrast, bright colors.
- Soft control dual 9038Q2M decoding, support digital switching input, filter format selection.
- Balanced XLR output, balanced amp output.
- Built-in asynchronous USB chip for XMOS XU208, support DSD256 hard solution mode, support mobile phone OTG.
- Built-in CSR8675 Bluetooth module, Bluetooth 5.0 supports for LDAC and APTX HD.
- Support IIS input, coaxial and optical fiber support DSD DOP64.
- Output with mute relay DSD, PCM playing without switching noise.
- With 7pcs JRC4580 by default, with socket, users can replace by themselves.
- Double-layer circuit board. The top is a balanced amp circuit. A total of 5pcs mute relays are used.

Front Panel Introduction:
- Power/Mute: In standby status, short press to turn it on. In power-on state, short press the button to mute, long press the button to shut down.
- BALANCED OUT: Balanced headphone output port.
- Volume Filter: Volume/Filter, input selection knob. Short press the knob to choose inputs. Long press to select filter type. Turn left and right to adjust volume.

Screen Displays:
- Input channel
- Sampling rate
- Filter
- Data format
- Volume
- Volume bar

Technical Parameters:
- Amplifier power: 1.5W/32 ohms, 200mW/300 ohms (balanced 4-core to 3.5mm stereo requires impedance matching resistance)
- Audio output distortion: 0.0006% (tested with operational amplifier NE5532)
- SNR: 119dB
- Audio output amplitude: 2V RMS (SE/XLR)
- Working voltage: 5V 2A (be careful not to overvoltage)
- Coaxial support format: PCM 44.1K-192K/24bit, DSD64 DOP
- Optical fiber support format: PCM 44.1K-192K/24bit, DSD64 DOP
- USB input support format: PCM 44.1K-384K/32bit, DSD64-DSD256 native automatic identification and decoding
- Bluetooth support modes: For APTX-HD, LDAC, APTX-LL, APTX-L, AAC, SBC
- IIS support format: PCM 44.1K-384K/32bit, DSD64-DSD512 native automatic identification and decoding
- Dimensions: 173*110*53mm (excluding the sizes of protruding parts)
- N.W.: 750g

Package Included:
- 1 x Set of Headphone AMP DAC

Note:
- It is assembled.
- Instructions is not included.
- Only the main unit is included, other accessories are not included.
- This product does not come with CD, manual, USB drive, player. Plug-in download link: https://pan.baidu.com/s/1Mg2dH5l7M7jF9-UW_pSqow
(If you need a cracked version of the Native playing driver, please contact us, only for systems below WIN7, not for WIN10).
- It is best to use player for FOOBAR 2000, and install ASIO plug-in in the player to play 352.8K-384K music files. It is normal that computer system can only display up to 192K!
 
Download DSD Music Test File:
DSD64: http://pan.baidu.com/s/1bnGWI2V
DSD128: https://pan.baidu.com/s/1GWZT4eP8PN_C9F0Kx76eJg

Driver Installation & Setting Up Player For FOOBAR:
First connect USB cable to computer and install the driver.
Attention: When installing the player for FOOBAR, choose "Full Installation"

Settings For FOOBAR Player:
1. First open the player "File-Parameter Options", click "Components" on the left, and then click "Install" in the lower right corner to install the downloaded ASIO plug-in: foo_out_asio.fb2k-component (first unzip the downloaded plug-in package ), press "OK" and restart FOOBAR, after the installation is complete, as shown below


2. Install the "ASIO Proxy Install-0.7.1.2.EXE file" in the folder "foo_input_sacd-0.7.1" in the plug-in package, as shown below

3. On the "Parameter Options" page for FOOBAR, click "Playback" --- "Output" on the left, and select the output device on the right: ASIO:foo_dsd_asio, as shown below. (When the system for WIN10 uses FOOABR1.3.14, output device selects "DSD:ASIO:XMOS USB AUDIO 2.0 ST 3004 ASIO 1.03")


4. Click "ASIO" in the "Output" drop-down menu on the left, double-click on the right: foo_dsd_asio, as shown below

After double-clicking foo_dsd_asio, the menu that pops up is set as follows and closed


5. Then click "Tools" on the left, and select "SACD Decoder" in the drop-down menu. In the right menu, select "DSD" as the first item, and then press "OK" to complete the setting. As shown below:


When playing DSD songs, the system volume of sound card for XMOS must be adjusted to 100 to have sound, as shown in the figure below