Specification AmplifierType : Solid State AudioInput : USB Brand : Fosi Audio BulletPoint1 : Compact Yet Powerful: The SK02 employs a minimalist and stylish design language. Despite its small size, it boasts mighty features. It supports DSD256 and PCM 32bit/384kHz high-resolution decoding, along with 3.5mm single-ended and 4.4mm balanced headphone outputs. Its robust power can easily drive wide range of headphones and IEMs with an impedance range of 16-300 ohms BulletPoint2 : Stunning Performance: It features a high-end ESS SABRE ES9038Q2M DAC and SGM8262 op-amps. Its excellent circuit design ensures superior parameters with a SNR as high as 120dB, a low noise floor of only 3.7μV, and an incredibly low THD of 0.001%. The 4.4mm balanced output power reaches an impressive 1100mW at 32 ohms. The exceptional high-resolution capability and pure sound quality make every listening experience an extraordinary sensory journey BulletPoint3 : User-Friendly Design: The SK02 requires no drivers and offers plug-and-play convenience. It integrates a big multi-functional control knob, allowing easy access to power on/off, play/pause, and volume adjustments. The unit features quick-switch buttons for high/low gain and input modes. Additionally, its colorful indicator lights enable effortless identification of the current working mode and the song's sampling rate BulletPoint4 : Remarkable Versatility: Supports USB and optical input, widely applicable for decoding with computers, laptops, CD players, TVs, and projectors. Not only can it function as a headphone amplifier, but it can also serve as a preamp, pairing with active speakers or an amplifier like Fosi Audio V3, ZA3, TB10D amp and passive speakers to form a desktop listening or home audio system BulletPoint5 : Exquisite and Durable: The SK02 is crafted from a single piece of aluminum alloy using CNC machining and a delicate sandblasting process. This not only gives it an exquisite appearance but also ensures lasting durability BulletPoint6 : Connects with USB-C iPad Pro Models Color : black CompatibleDevices : Laptop, Computer, CD player, TV, Projector ConnectivityTechnology : Wired ConnectorType : USB-C, 3.5mm Jack, 4.4mm Balanced ControlType : Button Control CustomerPackageType : Standard Packaging Directions : 1. If you hear 'zhi ~ zhi' noise in your headphones while using B4-X with your cellphone, keep your cellphone far away from B4-X to avoid interference from WIFI or 4G signals. 2. If the right channel has static, it might be due to a poor contact of the tube after long shipping. Open the chassis and adjust the screw near the tube while listening. If the tube is broken, buy a 5899 tube in local shops and we will refund you the cost. 3. If it breaks with four loud pops and doesn't work, charge the battery as it might be run out of power. 4. Keep the amp away from devices that can transfer signals like cellphones and routers to avoid electronic feedback/interference. 5. If the charger is broken, contact us to get a new one. ExternallyAssignedProductIdentifier : 3265575523782 ExternallyAssignedProductIdentifier1 : 6970141855170 ExternallyAssignedProductIdentifier2 : 6970141856719 ExternallyAssignedProductIdentifier3 : 00805676301419 ExternallyAssignedProductIdentifier4 : 08056763014190 FitType : body-worn FrequencyResponse : 96 KHz Hazmat1 : LITHIUM ION BATTERIES CONTAINED IN EQUIPMENT Hazmat10 : DE_SmallLithiumIonBatteryInEquipment Hazmat11 : EG_SmallLithiumIonBatteryInEquipment Hazmat12 : ES_SmallLithiumIonBatteryInEquipment Hazmat13 : FR_SmallLithiumIonBatteryInEquipment Hazmat14 : GB_SmallLithiumIonBatteryInEquipment Hazmat15 : IE_SmallLithiumIonBatteryInEquipment Hazmat16 : IN_SmallLithiumIonBatteryInEquipment Hazmat17 : IT_SmallLithiumIonBatteryInEquipment Hazmat18 : JP_SmallLithiumIonBatteryInEquipment Hazmat19 : MX_SmallLithiumIonBatteryInEquipment Hazmat2 : UN3481 Hazmat20 : NL_SmallLithiumIonBatteryInEquipment Hazmat21 : PL_SmallLithiumIonBatteryInEquipment Hazmat22 : SA_SmallLithiumIonBatteryInEquipment Hazmat23 : SE_SmallLithiumIonBatteryInEquipment Hazmat24 : SG_SmallLithiumIonBatteryInEquipment Hazmat25 : TR_SmallLithiumIonBatteryInEquipment Hazmat26 : US_SmallLithiumIonBatteryInEquipment Hazmat27 : ZA_SmallLithiumIonBatteryInEquipment Hazmat28 : 9 Hazmat3 : II Hazmat4 : AE_SmallLithiumIonBatteryInEquipment Hazmat5 : AU_SmallLithiumIonBatteryInEquipment Hazmat6 : BE_SmallLithiumIonBatteryInEquipment Hazmat7 : BR_SmallLithiumIonBatteryInEquipment Hazmat8 : CA_SmallLithiumIonBatteryInEquipment Hazmat9 : CN_SmallLithiumIonBatteryInEquipment HeadphonesFormFactor : External/Standalone IncludedComponents : remote control IncludesRechargableBattery : 1 ItemName : Fosi Audio SK02 DAC Amp Headphone Amplifier Desktop USB C to AUX Digital to Analog Audio Converter Adapter Preamp Optical to 3.5mm 4.4mm Balanced Combo for Home Audio System ItemPackageDimensions_Height : 19.304 centimeters ItemPackageDimensions_Length : 7.493 centimeters ItemPackageDimensions_Width : 13.6906 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : headphone-amps Manufacturer : Fosi Audio Material : aluminum alloy MaximumSampleRate : 192 KHz ModelName : SK02 ModelNumber : SK02 NoiseControl : none NumberOfBands : 8 NumberOfChannels : 4 NumberOfItems : 1 OperatingSystem : Mac OutputChannelQuantity : 2 OutputWattage : 0.34 watts PackageLevel : unit PartNumber : SK02 PowerSourceType : Corded Electric ProductDescription : LOXJIE 2024 NEW D30 ProductSiteLaunchDate : 2024-02-21T08:00:00.000Z RecommendedUsesForProduct : personal audio enhancement Size : 3.74 x 1.18 x 0.63 StrapType : Clip/Lanyard StreetDate : 2015-01-22T00:00:01Z Style : GROOVE SupplierDeclaredDgHzRegulation : not_applicable SupportedSoftware : Mac OS UnspscCode : 52161547 WarrantyDescription : 24 Month Manufacturer