AOSHIDA Topping L50 NFCA Balanced Headphone Amp, TRS/RCA to 6.35mm/4-Pin-XLR Headphone Amps, 3500mW×3500mW Headphone Amplifier, TRS/RCA Passthrough Output Amplifiers for IEMs/Headphones (Black)

• Powerful and Ultra-Low Noise NFCA Circuit : Enjoy 2x the power output at 300Ω compared to L30, with an ultra-low noise of 0.3uV, 145dB dynamic range, and 0.00006% THD+N for an exceptional listening experience
• Wide Gain Range for High/Low Sensitivity : With three gain options, the L50 can easily match with low-sensitivity full-sized over-ears to high-sensitivity IEMs, without any background noise
• Adaptable to Any Headphone Impedance : The L50 is designed to meet the requirements of multiple ideal amps, allowing you to choose your favorite headphones without the need to consider impedance matching
• Input Pass-Through for Easy Connection : When shutting down, the input signal is directly output to RCA or TRS without amplification, making it easy to connect with active speakers
• Perfect Match with E50 : The L50 is the perfect partner for the E50 DAC, featuring a fully matched design language and balanced signal transmission via TRS, supporting PCM, DSD, and MQA decoding

L50 NFCA HiFi Headphone Amplifier Headphone Amplifier Spec THD+N@1kHz(A-wt) SE IN： <0.00006%@Output=780mW(32Ω) <0.00006%@Output=333mW(300Ω) BAL IN： <0.00006%@Output=780mW(32Ω) <0.00006%@Output=333mW(300Ω) THD 20-20kHz(90kBW) SE IN： <0.00008%@Output=780mW(32Ω) <0.00008%@Output=76mW(300Ω) BAL IN： <0.0001%@Output=780mW(32Ω) <0.0001%@Output=76mW(300Ω) SNR@MAX OUT 1kHz(A-wt) SE IN: 145dB BAL IN: 140dB SNR 50mV OUT 1kHz SE IN: 104dB BAL IN: 104dB Dynamic Range 1kHz (A-wt) SE IN: 145dB BAL IN: 140dB Frequency Response SE IN: 20Hz-40kHz(±0.05dB) BAL IN: 20Hz-40kHz(±0.1dB) Output Level SE IN： 35Vpp@G=L 35Vpp@G=M 37Vpp@G=H BAL IN： 6.6Vpp@G=L 35Vpp@G=M 37Vpp@G=H AP Measured Noise Level (A-wt) SE IN & BAL IN： <0.7uVrms@G=L <0.7uVrms@G=M <1.2uVrms@G=H Actual Noise Level (A-wt) SE IN： <0.3uVrms@G=L <0.3uVrms@G=M <1.0uVrms@G=H BAL IN： <0.3uVrms@G=L <0.3uVrms@G=M <1.1uVrms@G=H Channel Crosstalk@1kHz SE IN: -119dB BAL IN: -113dB Input Sensitivity SE IN： 60Vrms@G=L 12Vrms@G=M 2.7Vrms@G=H BAL IN： 12.7Vrms@G=L 12Vrms@G=M 2.7Vrms@G=H Gain SE IN： -14.3dB@G=L -0.1dB@G=M 13.9dB@G=H BAL IN： -14.5dB@G=L -0.3dB@G=M 13.7dB@G=H Output Impedance SE IN & BAL IN: <0.1Ω Out Power (SE IN & BAL IN) 3500mWx2@16Ω THD+N<0.1% 2800mWx2@32Ω THD+N<0.1% 2000mWx2@64Ω THD+N<0.1% 540mWx2@300Ω THD+N<0.1% 290mWx2@600Ω THD+N<0.1% Adapter Impedance SE IN & BAL IN: >8Ω Product Accessories 1 × L50 1 × AC adapter 1 × 6.35mm to 3.5mm adaptor 1 × User manual 1 × Warranty card