Black AP20 DSD Digital Turntable Lossless Audio Player with 7-inch IPS Screen (ES9038Pro DAC + TXCO Version)

Black AP20 DSD Digital Turntable Lossless Audio Player with 7-inch IPS Screen (ES9038Pro DAC + TXCO Version)

Description:
- AP20 adopts a multi-core CPU and for FPGA architecture, and uses a low-level hard decoding processing architecture, which has unique technical advantages in the audio processing industry.
- In order to maintain the purity and delicacy of playback, for FPGA core is used for separate playback, which is vastly different from most digital broadcasting for Android systems on the market. No matter how fast the CPU processing speed is, it cannot guarantee clock stability. Adopting a fully digital phase-locked loop system with local clock function and FIFO buffer, the clock jitter of all digital output interfaces is reduced through phase-locked loop technology for FPGA and two low phase noise temperature compensated crystal oscillators (TXCO) (or femtosecond crystal oscillators, optional). For FPGA playback processing algorithm, clock restructuring technology, and global low jitter clock control technology ensure the purity of the sound.

Features:
- The whole machine adopts a linear power supply system: each module is powered separately and all use low-noise LDO. The ARM processor is powered separately, for FPGA audio processing module, USB interface, screen, clock circuit and Bluetooth are powered separately, and the USB interface is optimized to support high current output. It can be directly driven by an external portable hard drive.
- The overall integration of the machine is higher, with the power transformer integrated on the motherboard, eliminating cables, reducing the number of connectors, and optimizing the power supply circuit.
- The main filter capacitor of the decoding board adopts for Nichicon ZUI high-end HiFi capacitor FW series, and the rectifier diode adopts a silicon carbide Schottky diode without recovery time. The positive and negative voltages are provided by imported LM317 and LM337. The DAC power supply circuit uses a separate super noise LDO (LT3045) for power supply and adopts a three-level LDO design.
- Three level power filtering effectively removes various interferences from the mains power supply, ensuring the purity of the sound and providing assurance for sound quality.
- Adopting for NORATEL power transformer, anti vibration, input voltage range, sufficient power, up to 6 independent AC power outputs, built-in overcurrent overload fuse protection is reliable; High priced digital broadcasting and decoders often use this type transformers.
- Using for Nichicon KG series audio capacitors, the sound is more charming and suitable for expressing classical, modern, and vocal music. The sound is smooth, the sound field is large, the sound quality is naturally balanced, the tone is gorgeous, and the resolution is very high.
- For FPGA directly outputs the IIS signal to 9038PR0, while the master clock MCLK is restructured through a phase-locked loop and provided to the DAC, without using the built-in SRC of 9038PRO. The sound is far superior to other decoding methods of 9038PRO.
- I/V conversion uses two advanced audio operational amplifiers OPA1612 for TI; Paired with a specially tuned LPF circuit, it provides a CD level auditory experience for enthusiasts. The decoding board circuit is made of luxurious materials, using high-precision low-temperature drift AVX round crystal metal film resistors, imported brand thin film capacitors for single ended analog output, using two AD797 operational amplifiers for ADI, and balanced analog output using two OPA1612.
- 7-inch HD IPS large screen display, using 1024x600 resolution IPS large screen, with clearer display and bright colors.
- A brand new user-friendly UI interface, displaying various functional zones. The playback interface integrates volume, playback status, song name, album cover, playback time, song format, etc; Suggest using a remote control for more convenient operation.
- AP20 has a simple and smooth design, and has been optimized for miniaturization. It is a desktop level premium player, with an all aluminum CNC integrated body, precision machining, extraordinary craftsmanship, and high standard surface treatment.
- Integrated with high-quality Bluetooth chip CSR5125, supporting high bit-rate protocols such as LDAC, and combined with an independent management system for FPGA chip, it can be directly connected to a mobile phone for playback, which is not only convenient, but also the sound quality will not disappoint you. At the same time, it also supports direct connection to a phone or PC through a USB interface, allowing for direct playback without a drive, bringing you more convenience.
- Supports USB interface input, can connect to computers and mobile phones. DSD supports up to 512 and PCM sampling rate up to 24BIT 384KHZ, serving as an external sound card for computers/mobile phones.
- Support mobile app browsing, song selection, control playback, display song name, time, folder, etc., using CSR5125 Bluetooth chip, supporting for LDAC and ATPX-HD protocols for convenient and practical use. Note: The mobile app supports for Harmony OS, Android, and IOS operating systems; The APP control must be connected to the same network as the mobile phone and AP20.
- Support SPDIF input, allowing AP20 to be used as a decoder simultaneously. The overall integration of the machine is higher, with the power transformer integrated on the motherboard, eliminating cables, reducing the number of connectors, and optimizing the power supply circuit.
- Supports multiple operations and external storage devices; Panel operation/remote control operation/mobile APP operation; Supports playing songs on USB flash drives/external hard drives/NAS. In order to improve the operating experience, it not only supports the rotary encoder and button operation of the panel, but also allows remote control and mobile APP operation.

After booting up, you can perform the following operations on the machine panel:
- File management: you can choose the folder of songs you want to play, enter the folder, select your favorite songs, and lightly press the knob to start playing.
- NAS settings: set the NAS address, username, and password.
- Wireless settings: set up WiFi and Bluetooth. Select the WiFi you want to connect to and enter the WiFi password to establish a wireless network connection; Select to enable Bluetooth detection and connect to your phone's Bluetooth. Search for AP20 Bluetooth (commonly known as AP20) on your phone, connect and confirm on the machine interface to enter Bluetooth playback. The LDAC function requires high-quality sound quality to be enabled in the phone's Bluetooth settings.
- Play settings: set the playback mode and interface, lightly press the knob to confirm your selection.
- System settings: digital front-end, DTS output, and automatic screen shutdown time can be set.
- Product information: select 'Check Version' to automatically upgrade the product (requiring network transfer).

Specification:
- Panel material: silver aluminum alloy anode frosted/black aluminum alloy anode brushed
- Size: 300 x 244 x 127mm
- Host net weight: 5kg
- Power consumption: ≤15W for normal working; ≤50W for peak value

Supported Format:
- WAV: stereo 44.1kHz ~ 384kHz, 16bit ~ 24bit supports WAVDTS (built-in dual channel DOWNMIX, source code output 7.1 channels)
- APE: stereo, FAST/NORMAL/HIGH 44.1 ~ 48kHz, EXTRAHIGH <= 48kHz, 16/24bit
- FLAC: stereo 44.1kHz ~ 192kHz, 16/24bit
- AIFF: stereo 44.1kHz ~ 384kHz, 16bit ~ 24bit
- ALAC: stereo 44.1kHz ~ 192kHz, 16/24bit
- AAC: stereo, LCILD | HE | HEV2PROFILE
- MP3: dual channel, 320KBPS, CBR and VBR
- WMA: supports for WMA9, WMA10PRO and WMA lossless
- DTS: built in dual channel decoding, supports DOWNMIX, can output 7.1 channels from source code
- CUE: supports automatic track splitting such as WAV, AIFF, APE, FLAC, etc. Supports encoding such as Unicode, UTF-8, ANSI, etc.
- DSD: supports DFF | DSFISACDISO (including compressed and uncompressed), uncompressed supports DSD64 | 128256512, compressed supports DST64, coaxial supports DSD64 source code output, HDMI-compatible to IIS supports DSD64 ~ 512 source code output.

Package Included:
- 1 x Host
- 1 x Remote Control
- 2 x Antenna
- 1 x Power Cable
- 1 x User Manual