D90 For MQA Audio DAC Bluetooth 5.0 DAC Bluetooth Decoder AK4499 DAC Silver XMOS DSD512 For LDAC

D90 For MQA Audio DAC Bluetooth 5.0 DAC Bluetooth Decoder AK4499 DAC Silver XMOS DSD512 For LDAC

Advantages:
- AK4499 fully balanced decoder
- Support for MQA decoding on USB input
- USB processor for XMOS XU216
- AK4499 flagship decoder chip
- Hi-Res Audio and Hi-Res Audio Wireless certification
- Bluetooth 5.0
- AK4118 receiving chip
- CPLD programmable logic chip
- DSD PCM, DSD512 32bit 768kHz
- Femtosecond clock crystal oscillator
- German custom drive for Thesycon
- Support IIS input
- Support HD audio transmission for LDAC

Features:
- AK4499 flagship decoder chip. It adopts current output architecture and 4-channel design. D90 connects every two channels of AK4499 in parallel for better performance. -122dB distortion, 127dB dynamic range, DSD decoding supports DSD512, PCM decoding supports 768K. Attention: The above are the measured parameters of the machine.
- The pinnacle parameters of the flagship chip are fully presented on the product.
- SINAD is 122dB at 1kHz. Dynamic range is 127dB at 1kHz. Attention: The above is tested under A weighting conditions.
- High resolution music DSD512 PCM32bit 768kHz.
- With the help of AK4499 and components for XMOS, D90 can support 32bit 768kHz and DSD512 resolution, both data level and resolution far exceed CD and SACD. In addition, we have also customized the driver for Thesycon (for Win7 and higher) from German companies, so that your computer and D90 can be better matched.
- Bluetooth 5.0, redefine high-definition wireless audio with transmission for LDAC. D90 is equipped with CSR8675 chip, supports Bluetooth 5.0 and supports for LDAC, AAC, SBC, APTX, APTX LL, APTX HD and other audio coding. For LDAC coding
24bit 96kHz HD transmission. If you don't need Bluetooth input, you can also turn it off completely in the menu.
- AK4118 receiver. AK4118 is currently the lowest jitter S/PDIF receiver with good compatibility. It is used for D90's fiber, coaxial, and AES reception, and supports up to 24bit/192kHz.
- CPLD. D90 joins programmable logic chip CPLD, focusing on clock processing and signal optimization. CPLD cooperates with femtosecond crystal oscillator to bring a lower Jitter effect than using only femtosecond crystal oscillator; CPLD coordinates the processing of digital signal optimization, effectively improving signal quality and stability.
- Rich input interface. AES, USB, optical fiber, coaxial, IIS, Bluetooth input. Among them, USB and IIS support 32bit 768k and DSD512 input, AES, optical fiber, and coaxial support 24bit 192k input, and Bluetooth for LDAC supports 24bit 96k input. IIS input can be set in the machine, compatible with most IIS signals on the market that use HDMI transmission.
- IIS input is highly compatible. When you have a better interface, you can use the HDMI cable to input the IIS signal directly into the D90's AK4499 for decoding to obtain better sound effects. IIS input can support PCM32bit 768kHz & DSD512 native to achieve peak performance. The IIS input provides phase position, DSD channel setting, DSD indication pin selection setting, and is compatible with most digital interfaces on the market that use HDMI interfaces to output IIS signals. Attention: This function only uses the HDMI interface to transmit IIS signals, not standard HDMI signals, so it cannot be directly connected to the HDMI interface of computers, TVs, and set-top boxes.
- You can choose the output arbitrarily. Because the D90 has a fully balanced structure, it can be compatible with both balanced and single-ended outputs. You can choose any one output, the other closed, or both output at the same time. It is especially convenient when used with other devices.
- Power supply voltage can be switched, applicable to the global voltage. AC100-120V 50/60Hz uses 115V gear, AC220-240V 50/60Hz uses 230V gear.
- Use 2pcs femtosecond crystal oscillators for ACCUSILICON. CPLD programmable logic chip. LPF uses 3pcs LME49720. The simulation part of the whole machine uses 0.1% high-precision low-temperature drift resistors, and the performance is more stable.
- The power supply adopts 7pcs HIFI special capacitors for Nichicon, which has sufficient energy supply. A two-stage voltage stabilizer + 6 independent voltage stabilized power supply structure is adopted. The positive and negative power supplies are even added with instrument-level low-noise linear regulators TPS7A47 and TPS7A33. I/V conversion uses 4pcs OPA1612, taking into account high performance and good sound quality.
- DAC filter mode: D90 provides 6 different PCM filter modes for selection.
- Bluetooth decoder application: Connect the Bluetooth of your mobile phone, tablet, laptop to D90, and D90 will become your Bluetooth decoder. You can easily enjoy the high sound quality and convenience brought to you by Bluetooth 5.0. If your device supports for LDAC transmission, you will get better sound effects.
- Decoding + preamp application: D90 has a built-in volume control function, which can adjust the volume from -99dB to 0dB, so you can directly connect D90 to amp, pure amplifier, active speakers, and control the volume through remote control/button on D90. Enjoy music more comfortably.
- Pure DAC application: D90 can also turn off the volume control function and maintain the maximum level of 4Vrms (XLR balanced) and 2Vrms (RCA single-ended) output, so D90 works as a pure DAC.

Supported Specifications:
- USB IN: 44.1kHz-768kHz/16bit-32bit, DSD64-DSD512 (Native), DSD64-DSD256 (DoP)
- IIS IN: 44.1kHz-768kHz/16bit-32bit, DSD64-DSD512
- COAX/OPT/AES IN: 44.1kHz-192kHz/16bit-24bit
- BT: For AAC/SBC/APTX/APTXLL/APTXHD/LDAC



Package Included:
- 1 x Set of Decoder

Note:
- It is assembled and ready to use.