(Andy 5-Star) AkLIAM PD5 AK4493SEQ Portable USB Dac Amp 4.4mm Balanced & 3.5mm Headphone Amplifier PCM768KHz DSD512

Must be clear before purchasing: ▶ The AK4493SEQ chip generates a significant amount of heat during operation, so it is normal for the PD5 to feel a bit warm to the touch. ▶ This product is an audio usb DAC headphone Dac&Amp and has no microphone function,so headphone mic cannot be used. ▶ When PD5 is close to the phone and there is a call/text message, the earphones will emit electromagnetic interference noise. This phenomenon is normal, and it will return to normal after the call/text message ends. ▶ PD5 has a relatively high power consumption (normal operating current is 100mA to 200mA). Due to the power output limitations of iOS devices, there will be abnormal sound if the threshold is exceeded for some high impedance headphones/iems.Therefore, we DO NOT recommend using iOS devices for PD5. ▶ Starting from April 2025, the panel at the bottom of PD5 has been replaced with tempered glass. ▶ Please avoid inserting both 4.4mm and 3.5mm earphones at the same time, as it may damage the PD5. ▶ Please feel free to contact us if you have any doubt or need help. About External Power Cable EC02 / EC03: ▶ The interference and noise caused by the internal baseband and RF operation of the mobile phone are likely to be transmitted to the USB DAC/AMP through power supply, so the mobile phone is not an ideal power supply for audio Dac&Amp. When using this cable, the current between the phone and the USB Dac/Amp is zero, and the power is directly introduced into the Dac/Amp from the outside power supply without passing through the phone. ▶ Mobile phone output has limitations, especially for Apple devices or some high energy consuming Dac&Amp, using EC02/EC03 can perfectly avoid power supply problems. The phone is only used for data transmission and no longer for power supply tasks.Please click on the image below if you need to purchase separately. PD5 Firmware Update: ▶ Resolve the issue of low volume on Apple devices under the iOS 10 system. ▶ Update Time: December 2024 ▶ Firmware Download: https://tinyurl.com/akliamfirmware PD5 Review Videos: ▶ Andy Audio Vault: https://www.youtube.com/watch?v=xVl7hnVEdI8 (English Version) ▶ SyncerTech: https://www.youtube.com/watch?v=Rx8nOvlfIBQ (Russian version) Tech Support: ▶ AkLIAM ASIO Driver: https://tinyurl.com/akliam-driver ▶ Firmware Update: https://tinyurl.com/akliamfirmware ▶ User Manual: https://tinyurl.com/akliam-manual ▶ Email: akliamaudio@foxmail.com Features: ▶ High Specification Audio Bridge Controller CT7601 ▶ High Performance DAC Chip AK4493SEQ ▶ Headphone Operational Amplifier Chip 2*RT6863 ▶ Built-in FPGA DSP Processing Function ▶ Adopt Multiple Ultra-low Noise LDOs ▶ Support up to 768KHz/32Bit DSD512 ▶ Easily Drive all Headphones 6Ω to 600Ω with Rich Sound Details ▶ High/Low Gain Switch(Long press Botton ⑤) ▶ 6-Mode Filter(Long pressing ⑥ and ⑦ at same time) ▶ 100-Level Independent Volume(with slow/fast selection,has power-off memory function) ▶ with UAC1.0/UAC2.0 Function(Default is UAC2.0 mode,press and holding down Button⑤ and powering on,wait for the purple indicator light to light up, then release the Button⑤, and the device will work in UAC1.0 mode) ▶ Coming with 4.4mm Balanced Output and 3.5mm Stereo Output ▶ Perfect support for USB exclusive output such as Tidal, Hiby ▶ Suit for Android/iOS/Windows/Mac ▶ Precision CNC Process Aluminum Alloy Shell ▶ The USB Interface is Specially Designed for Durability ▶ Only 21g ultra-light design for easy to carry Parameters: ▶Working Voltage: +4.9V ~ +5.3V ▶Required Matching USB Cable Internal Resistance: ≤200mΩ ▶Working Current: 97mA ~ 204mA ▶Gain Adjustment: 1.35V ~ 4V ▶ Decoding Support: PCM 44.1-768KHz 16/24/32Bit DSD 64/128/256/512 ▶ Output: 4.4mm balanced + 3.5mm stereo ▶ Frequency Range: 20Hz～48KHz ▶ 3.5mm Output Power: 260mW(High gain) @32Ω Load ▶ 4.4mm Output Power: 500mW(High gain) @32Ω Load ▶ Headphone Impedance Suit: 6Ω-600Ω ▶ THD+N: -102dB～-115dB ▶ SNR: 120dB@3.5mm,125dB@4.4mm ▶ Channel Crosstalk: -72dB～-135dB ▶ Size: 58*23*10/12mm ▶ Weight: 21g Package: ▶ 1 * AkLIAM PD5 USB Dac&Amp ▶ 1 * USB C to C Cable ▶ 1 * USB A to C Adapter ▶ 1 * User Manual ▶ 1 * Certificate ▶ 1 * EC02 External Power Cable(optional) Related Chart Display: ▶ Function Explanation ① USB-C Socket ② LED indicator, Red for PCM, Blue for DSD ③ 3.5mm SE Socket ④ 4.4mm BAL Socket ⑤ Play/Pause(Short press)High/Low Gain(Long press 1 second)/Next(Press twice)/Previous(Press 3 times) ⑥⑦ Volume+/-(Short press)/Fast Volume++/--(Long press)/Filter Switch(Long pressing at same time 1 second) ▶ Gain Adjustment Max Output Level ▶ Filter Adjustment Instructions ▶ Test Diagram@32 Ohm load@4.4mm BAL@High Gain@1KHz