AIYIMA H4 HIFI Portable Headphone Amplifier USB DAC AMP ES9039Q2M PCM768 DSD512 4.4mm Balanced/3.5mm Jack Output OLED Display

Feature1. Equipped with the flagship ES9039Q2M chip, supports high-resolution audio decoding up to PCM 32-bit/768kHz and DSD512.2.With gain adjustment, 8 PCM filter options, and High/Low two-level gain, can be tailored to meet the needs of both music enthusiasts and gamers.3.Features both 3.5mm single-ended and 4.4mm balanced outputs. Balanced output provides up to 240mW, driving various headphones with ease.4.UAC 1.0 mode compatible with Nintendo Switch and PS5 for high-quality audio.*Supports up to 16bit/44.1kHz or 48kHz input in this mode. Activate by holding the M button while powering on.5.OLED display with intuitive controls,In HID mode, control music playback (play/pause, skip) directly from the device without touching your phone.Built-in volume memory retains your last volume setting across different audio sources, preventing sudden volume changes.Volume control is temporarily unavailable in HID mode. SpecificationsDAC Chip: ESS ES9039Q2MOP AMP chip: RT68632Max Sampling Rate: PCM 768kHz/32bit DSD512 DSD512 (Dop)S/PDIF mode: PCM 384kHz Dop128Support system: Android/IOS/Windows10, 11/MacOS, etc.Supported devices: mobile phones, tablets, computers, players, etc.USB mode: USB1.0/USB2.0Headphone output: 3.5mm Single-Ended, 4.4mm BalancedHeadphone impedance: 16-300Ω 3.5mm single-ended parameters:Output power: 125mW@32RL=32Ω (mono)SNR: 122dB@RL=32Ω100mWDistortion: 0.00071%@RL=32Ω100mWDynamic range: 125dB@RL=32Ω100mWFloor noise: 1.5μVrms@RL=600Ω 4.4mm balance end parameters:Output power: 240mW@32RL=32Ω (mono)SNR: 120dB@RL=32Ω100mWDistortion: 0.00056%@RL=32Ω100mWDynamic range: 123dB@RL=32Ω100mWFloor noise: 1.9μVrms@RL=600ΩProduct size: 56x23x12.5mmPacking size: 145x85x33mmProduct weight(without wire): 22.5gIncluding package weight: 145g NOTE:AIYIMA reserves the right to make improvements that may result in specification or feature changes without prior notice.High-concerned chemical : noneSignal To Noise Ratio : 122dBDimensions (WxHxD) : 56x23x12.5Body Material : aluminumWIFI : NoBluetooth : NoPCM : YesDSD (Direct Stream Digital) : YesOperational Amplifier Chips Model : RT6863DAC Model : ESS ES9039Q2MChannels : 2 (2.0)Model Number : AIYIMA H4Type : Mini AmplifierRecommended Headphone Maximum Impedance : 251 - 300 OhmBuilt-in Battery : NoOutput Type : LINE OUT (AUDIO OUT),Balanced OutInput Type : USBBrand Name : AiyimaOrigin : Mainland ChinaCertification : CE,RoHS