Specification Brand : TOPPING BulletPoint1 : 【New NFCA Circuit with Flagship-Class Performance】 The TOPPING L50 features a redesigned NFCA module inspired by the A30 Pro, delivering up to 2x more power at 300Ω vs. L30. Enjoy ultra-low 0.3uV noise, a dynamic range of 145dB, and an ultra-clean 0.00006% THD+N for crystal-clear sound. BulletPoint2 : 【Powerful Output for Any Headphone】 With up to 3500mW x2 @16Ω and 540mW x2 @300Ω, the TOPPING L50 drives everything from high-impedance studio headphones to power-hungry planar magnetics with ease, delivering full dynamics and headroom at any volume. BulletPoint3 : 【Perfect Match for Any Impedance or Sensitivity】 Forget impedance matching worries. Thanks to high output voltage (37Vpp), high power, and ultra-low output impedance (<0.1Ω), the L50 pairs effortlessly with low-impedance IEMs or high-impedance over-ears. BulletPoint4 : 【3-Step Gain Control with Dead-Silent Background】 Switch between three gain levels to optimize your listening experience. The 0.3uV noise floor ensures silent operation, even for the most sensitive in-ear monitors—no hiss, just pure audio. BulletPoint5 : 【RCA/TRS Input Pass-Through When Powered Off】 When the TOPPING L50 is turned off, the input signal passes through unamplified to output—ideal for use with active speakers or studio monitors, especially when your DAC supports preamp output. BulletPoint6 : 【Designed to Pair Perfectly with TOPPING E50 DAC】 Combine the TOPPING L50 with the E50 DAC for a sleek and fully matched desktop stack. Benefit from balanced TRS interconnects and premium decoding (PCM, DSD, MQA) via E50’s ES9068AS chip. CoaxialDigitalInput : yes Color : Black ConnectorGender : female-to-male ConnectorType : usb ControlMethod : touch ExternallyAssignedProductIdentifier : 6977577361855 IncludedComponents : Quick Start Guide ItemName : TOPPING L50 NFCA Balanced Headphone Amplifier – 145dB Dynamic Range, 0.00006% THD+N, RCA/TRS Input Pass Through, for IEMs & High-Impedance Headphones (Black) ItemPackageDimensions_Height : 3.2 inches ItemPackageDimensions_Length : 11.4 inches ItemPackageDimensions_Width : 8.2 inches ItemPackageQuantity : 1 ItemTypeKeyword : headphone-amps Manufacturer : TOPPING ModelNumber : Gnbzxce NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : TP-L50 ProductDescription : The TOPPING L50 features a redesigned NFCA circuit, delivering up to 3500mW x2@16Ω with ultra-low 0.3uV noise, 145dB dynamic range, and 0.00006% THD+N. With high output voltage (37Vpp), low output impedance (<0.1Ω), and 3-step gain control, it effortlessly drives everything from high-impedance headphones to sensitive IEMs with dead-silent backgrounds. Input pass-through allows direct signal output when powered off, ideal for active speakers. Pair it with the TOPPING E50 DAC for a high-performance balanced desktop stack. ProductSiteLaunchDate : 2025-05-25T07:00:00.000Z Size : L50-BK Style : US Plug SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 52161547 WarrantyDescription : 2 Year Manufacturer