Leafaudio Black Upgraded Version CMD30 DAC Dual ES9039 PRO Fully Balanced Audio Decoder Bluetooth5.4 LDAC

Leafaudio Black Upgraded Version CMD30 DAC Dual ES9039 PRO Fully Balanced Audio Decoder Bluetooth5.4 LDAC

Differences:
- Standard version: imported low phase noise crystal oscillator + noise cancellation circuit, Japan’s new low-noise power bridge stack, capacitor for Panasonic, pure copper socket. It is thick and durable in mid to low frequencies, and it has sufficient high-frequency resolution, which is suitable for pop music and vocals.
- Upgraded version: for Crystek 957 crystal oscillator + noise cancellation circuit, for Infineon silicon carbide rectifier bridge, four capacitor for Mundorf, for Furutech gold-plated socket. Its high frequency extension is good and more delicate, while also maintaining the original low-frequency dynamics, which can accommodate almost all types of music.

Precaution:
- When connecting the decoder to other devices such as ear amplifiers and power amplifiers, adjust the decoder's volume to 100 and use the back-end device to control the volume to achieve maximum dynamic effect.
- The default option for AMANERO sound card firmware is to support for WIN system playback of DSD512; If you need to support for DAPHILE system, please contact us before payment. (note: the two systems are not fully compatible)
- This machine is a pure DAC without headphone amplifier.
- The HDMI-compatible port is not a video port and can only connect to digital player or I2S input of the digital interfaces.
- Due to the use of imported materials for most parts of the machine, it is often out of stock due to the international situation. Therefore, any changes in materials or design will not be notified separately.

Features:
- Using 2pcs ES9039PRO chips, one chip per channel, working independently, with two channels of digital and analog independent power supply to avoid crosstalk.
- Original clock noise elimination technology, -165dBc at 1KHZ, CNC shielding module, built-in independent LT3042 voltage regulator, four layer circuit board with multi-layer shielding.
- 32 IV operational amplifier circuits. In order to adjust to the ideal sound, these 32 operational amplifiers did not use the recommended OPA1612, but instead used input field-effect transistor operational amplifiers for JFET with an output current of 100mA. The purpose is to solve the problem of thin intermediate frequency in previous chips for ESS series, so this machine will be different from the sound you hear from previous chips for ESS.
- Four imported transformers for Talema with balanced and durable sound. Each digital analog circuit uses a transformer to reduce mutual interference, and the two channel operational amplifiers independently stabilize the power supply, creating a -150dB separation (±3dB), a large sound field, and more accurate positioning.
- The LPF filtering circuit uses JFETLC5 Class A discrete operational amplifier module, which has a larger output current, finer sound, and larger low-frequency dynamics compared to ordinary operational amplifiers. The operational amplifier module comes with a socket, making it easy for players to replace it themselves.
- Configure Bluetooth 5.4 module for easy upgrade and support for LDAC high-definition audio format.
- By default, it is paired with the module for Amanero, which has good sound resolution and supports up to DSD512 and PCM384. Equipped with ground wire isolation to prevent computer power from contaminating the decoder and causing a decrease in signal-to-noise ratio.
- Due to the use of 32 IV operational amplifiers in this machine, there is a significant amount of heat generated. Therefore, a CNC all aluminum heat sink has been specially customized to provide both heat dissipation and shielding (the capacitors inside the heat sink are designed to withstand high temperatures).
- Each ES9039PRO's analog power supply is independently stabilized with one LT3042 to eliminate mutual interference and improve separation, signal-to-noise ratio, and distortion.

Bluetooth Connection Setting:
- Connect the Bluetooth antenna that comes with the device (it can be installed on the antenna base without tightening it, otherwise it may cause the wires inside the base to rotate, resulting in a disconnection and inability to receive signals).
- Adjust the input selection until the display shows "BT".
- Taking the phone as a column, enter "Settings" - "Bluetooth" and click "Search for Devices". Later, you will search for "QCC3084" and then click "QCC3084". The phone will automatically pair and connect successfully, and "Connected to Media Audio" will be displayed in the "Paired Devices" section, and then you can play the song.
- It is recommended to use a phone that supports for ATPX, APTX-HD, and LDAC functions, with excellent sound quality. (Different mobile phones also have significant differences in Bluetooth sound quality)
- If you find that Bluetooth devices cannot be found, please turn off this DAC for 1 minute (unplug the power cord) and then turn it back on to re-pair.

Specification:
- Dynamic range: 126dB for RCA; 132dB for XLR
- Separation degree: 145dB for RCA; 150dB±3dB for XLR
- Audio output amplitude: 2.75Vrms for RCA; 5.5V RMS for XLR
- Audio output distortion + noise: 0.0002% for RCA, 0.00018% for XLR
- SNR: 128dB for RCA, 133dB for XLR
- Supported format:
  Coaxial: PCM 44.1K - 384K/24bit, DOP DSD64 - DSD128
  Optical fiber: PCM 44.1K - 192K/24bit, DOP DSD64
  USB: PCM 44.1K - 384K/32bit, DSD64 - DSD512
  Bluetooth: for APTX-HD, LDAC, APTX-LL, APTX-L, AAC, SBC
  IIS: PCM 44.1K - 384K/32bit, DSD64 - DSD512
  AES/EBU: PCM 44.1K - 384K/24bit, DOP DSD64 - 128
- Working voltage: 110V/220V
- Static power consumption: < 30W
- Standby power consumption: < 2W
- Packaging weight: 9.6kg

Package Included:
- 1 x Host
- 1 x Remote Control
- 1 x USB Data Cable
- 1 x AC Power Cable
- 1 x Bluetooth Antenna