Description
Topping L50 Headphone Amplifier
The Topping L50 Headphone Amplifier adopts the New NFCA circuit. Redesigned new NFCA circuit based on the same working principle as the one in A30 Pro.
It provides 2x power at 300 Ohm compared to L30. The new circuit shares the same 0.3uV ultra-low noise and 145dB dynamic range as well as 0.00006% THD+N. With the help of NFCA, L50 easily reaches the top of the industry, and it has almost perfect performance regardless of distortion, dynamic range, and multi-tone testing. L50 has three gain options.
Covering a wide gain range is sufficient to meet the needs of low-sensitivity full-sized over-ears to high-sensitivity 1EMs. With the help of extremely low noise 0.3uV, even lEMs will not hear any background noise.
View L50 User Manual >>
Features
- Bypass output when power off
- Hi-Res Audio
- 3 step gain settings
- NFCA Modules
- THD+N <0.00006%
- 145dB DNR
- Noise <0.3uVrms
- Output Impedance <0.1Ohms
New NFCA circuit
Redesigned new NFCA circuit based on the same working principle as the one in A30 Pro. It provides 2x the power at 300 Ohm compared to L30.
The new circuit shares the same 0.3uV ultra low noise and 145dB dynamic range as well as 0.00006% THD+N.
Sound quality is never a problem
With the help of NFCA, L50 easily reaches the top of the industry, and it has almost perfect performance regardless of distortion, dynamic range, and multi-tone testing.
Wide range of adaptation to headphone impedance
Since L50 meets the requirements of multiple ideal amps at the same time, it leads you to break the inertial thinking in the choice of amps: From now on, there is no need to choose amps based on the impedance of headphones. All you need to do is choose L50, and then choose your favourite headphones, L50 can easily drive them well.
Easily match with high or low sensitivity
L50 has three gain options. Covering a wide gain range is sufficient to meet the needs of low-sensitivity full-sized over-ears to high-sensitivity IEMs. With the help of extremely low noise 0.3uV, even IEMs will not hear any background noise.
Input pass through
When shutting down, the input signal is directly output to RCA or TRS without amplification, which will be more suitable for working with active speakers/monitor speakers when the DAC has pre-amp function.
E50 will be the best DAC for L50
E50 and L50 have fully matched design languages and styles, and signals can transmit in balanced by TRS. E50 uses ES9068AS sub-flagship chip, supports PCM, DSD, MQA decoding.
Specifications
| THD+N @1kHz A-wt | SE IN: <0.00006% @Output=780mW(32Ω) |
| SE IN: <0.00006% @Output=333mW(300Ω) | |
| BAL IN: <0.00006% @Output=780mW(32Ω) | |
| BAL IN: <0.00006% @Output=333mW(300Ω) | |
| THD @20-20kHz 90kBW | SE IN: <0.00008% @Output=780mW(32Ω) |
| SE IN: <0.00008% @Output=76mW(300Ω) | |
| BAL IN: <0.0001% @Output=780mW(32Ω) | |
| BAL IN: <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 |
| BAL IN: 6.6Vpp @G=L | |
| SE IN: 35Vpp @G=M | |
| BAL IN: 35Vpp @G=M | |
| SE IN: 37Vpp @G=H | |
| BAL IN: 37Vpp @G=H | |
| AP measured noise level (A-wt) | SE IN: <0.7uVrms @G=L |
| BAL IN: <0.7uVrms @G=L | |
| SE IN: <0.7uVrms @G=M | |
| BAL IN: <0.7uVrms @G=M | |
| SE IN: <1.2uVrms @G=H | |
| BAL IN: <1.2uVrms @G=H | |
| Actual noise level (A-wt) | SE IN: <0.3uVrms @G=L |
| BAL IN: <0.3uVrms @G=L | |
| SE IN: <0.3uVrms @G=M | |
| BAL IN: <0.3uVrms @G=M | |
| SE IN: <1.0uVrms @G=H | |
| BAL IN: <1.1uVrms @G=H | |
| Channel Crosstalk@1kHz | SE IN: -119dB |
| BAL IN: -113dB | |
| Input Sensitivity | SE IN: 60Vrms @G=L |
| BAL IN: 12.7Vrms @G=L | |
| SE IN: 12Vrms @G=M | |
| BAL IN: 12Vrms @G=M | |
| SE IN: 2.7Vrms @G=H | |
| BAL IN: 2.7Vrms @G=H | |
| Gain | SE IN: -14.3dB @G=L |
| BAL IN: -14.5dB @G=L | |
| SE IN: -0.1dB @G=M | |
| BAL IN: -0.3dB @G=M | |
| SE IN: 13.9dB @G=H | |
| BAL IN: 13.7dB @G=H | |
| Output Impedance | SE IN: < 0.1Ω |
| BAL IN: < 0.1Ω | |
| Output Power | 3500mW x 2 @16Ω THD+N<0.1% |
| 2800mW x 2 @32Ω THD+N<0.1% | |
| 2000mW x 2 @64Ω THD+N<0.1% | |
| 540mW x 2 @300Ω THD+N<0.1% | |
| 290mW x 2 @600Ω THD+N<0.1% | |
| Adapter Impedance | >8Ω |
