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Specification
AgeRangeDescription : Adult
Brand : LEAUDIO
BulletPoint1 : 【Discrete DAC lmplementation with DualOp-Amps】 Featuring the ESS9281AC PRO decoding chip paired with dual RT6863C high-current operational amplifers, the device delivers significantly increased output power, supporting PCM decoding up to 32-bit/768kHz for lossless Hi-Fi audio and a premium listening experience.
BulletPoint2 : 【3.5mm and 4.4mm Dual Headphone Outputs】 Offering both 3.5mm single-ended and 4.4mm balanced outputs, the dual ports provide versatile compatibility with a wide range of professional audio equipment, enabling a more diverse experience and expanded possibilities.
BulletPoint3 : 【Separation of Analog and Digital Power Domains】 The circuit board features a discrete design for the power supply and digital-to-analog sections, with dedicated optimization of the DAC, signal, and power layers to achieve uncompromising audio quality.
BulletPoint4 : 【Small and portable design,easy to use】 The device boasts a minimalist and lightweight form factor, constructed with a metal exterior, weighing only 19g for enhanced portability and enduring durability.
BulletPoint5 : 【USB-C Plug and Play】 Compatible with most USB-C devices, including phones, tablets, and computers, for high-quality audio playback. Plug and play for seamless audio enjoyment.
Color : Pink
ConnectivityTechnology : Ethernet
HeadphonesFormFactor : In Ear
IncludedComponents : ATOM 4
ItemName : LEAUDIO Audirect Atom 4 Portable Audio DAC Amplifier ESS9281AC Pro Decoding chip Op-amp RT6863C*2 USB C to 3.5mm 4.4mm Outputs (Pink)
ItemPackageDimensions_Height : 7 centimeters
ItemPackageDimensions_Length : 27 centimeters
ItemPackageDimensions_Width : 10 centimeters
ItemPackageQuantity : 1
ItemTypeKeyword : headphone-amps
Manufacturer : AUDIRECT
Material : Aluminum
ModelName : goodstumbler8mza3g14vk
ModelNumber : goodstumbler8mza3g14vk
NumberOfItems : 1
PartNumber : ATOM 4
ProductDescription : Technical Specifications
Model: ATOM 4
DAC Chip: ESS9281AC PRO *1
Op-Amp:RT6863C *2
Audio Input: USB-C
Audio Output: 3.5mm Single-ended /4.4mm Balanced
Frequency Response: < ±0.08dB up to 40kHz
Two-Stage Amplification: Dual RT6863 Op-Amps in the First
Stage, Switching Amplifier in the Second Stage. True Balanced
4.4mm Qutput.

3.5mm SE. @utput Power:
Up to 2Vrms
≥126mW (32Ω).Current Drive
≥7mW (600Ω).Woltage Drive

4.4mm Balanced Headphone Output Power
Maximum Output Voltage: Up to 4.2Vrms
Output Power:≥137mW @ 32Ω(Current Drive)
Output Power:229mW@ 600Ω (Voltage Drive)

SNR: -119dB
THD+N: 0.0004%
Sampling Rate: up to 32-bit/768kHz
DSD support:up to DSD512
Weight: 19g
Built-in Battery: No

ProductSiteLaunchDate : 2025-02-26T07:48:09.914Z
Size : 7.68x3.94x1.57inch
SupplierDeclaredDgHzRegulation : not_applicable
SupplierDeclaredHasProductIdentifierExemption : 1
UnspscCode : 52161547
WirelessCommunicationTechnology : Bluetooth