Description
Topping L30 Headphone Amplifier
The Topping L30 Headphone Amplifier uses NFCA (Nested Feedback Composite Amplifier) that allows it to drive low impedance headphones with ease. It has an ultra-low noise level of 0.3uV that blows out the competition, while producing a high dynamic range of 141dB with no audible noise or dark backgrounds in sensitive IEMs.
High voltage swing of 26Vp-p, power of 3600mW per channel, and output impedance of less that 0.10 ohms let the L30 drive power hungry headphones with wide range of impedance.
The three gain settings add to the ability of the L30 to drive a wide range of devices. Finally, the L30 can also be used as a pre-amp and again produces high performance numbers. Output impedance in pre-amp mode is as low as 20 ohms.
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Features
- Headphone Amp/ Preamplifier Application
- Drives power hungry headphones with different impedance
- Hi-Res Audio
- 3 Step Gain Settings
- NFCA Modules
Ultra-High Performance NFCA modules
L30 uses the same NFCA (Nested Feedback Composite Amplifier) module from flagship A90.
Voltage Current hybrid feedback architecture along with UHG (Ultra High Gain Feedback) technology provides excellent performance. High output current drive capability allows the amp driving low impedance headphones with ease.
Ultra-low noise of 0.3uV is miles ahead of the competition, giving an absurdly range of 141dB and no audible noise and darkest background for the most sensitive IEMs.
Wide range of adaptation to headphones
L30 has a high voltage swing of 26Vp-p, power of 3500mW per channel when both channels are driven and output impedance of less than 0.10hm. It easily drives power-hungry headphones with a wide range of different impedance.
3 step gain settings, adapt to various sensitivities
L30 is equipped with three gain settings of -9.9dB/0dB/9.5dB. Wide range of gain settings and the 0.3uVrms ultra-low noise makes L30 easily adapt to all types of headphones from extremely sensitive IEMs to most power demanding full-sized over-ears.
Also an excellent preamp
The NFCA modules of L30 are not only able to drive the headphones but also apply to be a preamplifier with the same ultra-high performance. When it is in preamp mode, output impedance is as low as 200hm, which is widely suitable for various devices.
Specifications
| THD+N @1kHz A-wt | <0.00007% @Output=500mW(32Ω) |
| <0.00006% @Output=80mW(300Ω) | |
| THD @20-20kHz 90kBW | <0.0001% @Output=500mW(32Ω) |
| <0.00009% @Output=80mW(300Ω) | |
| SNR@MAX OUT 1kHz A-wt | 141dB |
| Dynamic Range@1kHz A-wt | 141dB |
| Frequency Response | 20Hz-40kHz(±0.05dB) |
| Output Level | 26Vpp @G=L |
| 26Vpp @G=M | |
| 26VppG=H | |
| AP measured noise level@A-wt | <0.7uVrms @G=L |
| <0.7uVrms @G=M | |
| <0.9uVrms @G=H | |
| Actual noise level*@A-wt | <0.7uVrms @G=L |
| <0.7uVrms @G=M | |
| <0.9uVrms @G=H | |
| Channel Crosstalk@1kHz | -91dB |
| IMD CCIF@(18kHz+19kHz) | -116dB |
| IMD SMPTE@(60Hz+7kHz) | -110dB@SMPTE4: 1 |
| -115dB@SMPTE1: 1 | |
| Input Sensitivity | 25Vrms @G=L |
| 9.0Vrms @G=M | |
| 3.0Vrms @G=H | |
| Gain | -9.9dB @G=L |
| 0dB @G=M | |
| 9.5dB @G=H | |
| Output Impedance | < 0.1Ω |
| Output Power | 3500mW x 2 @16Ω THD+N<0.1% |
| 2300mW x 2 @32Ω THD+N<0.1% | |
| 280mW x 2 @300Ω THD+N<0.1% | |
| Load Impedance | >8Ω |
| L30 Pre-AMP Specifications | |
| THD+N@1kHz A-wt | <0.00006% |
| THD@20-20kHz 90kBW | <0.00009% |
| SNR@MAX OUT 1kHZ A-wt | 141dB |
| Dynamic Range@1kHz A-wt | 141dB |
| Frequency Response | 20Hz-40kHz(±0.05dB) |
| Output Level | 26Vpp @G=L |
| 26Vpp @G=M | |
| 26Vpp @G=H | |
| AP measured noise level@A-wt | <0.7uVrms @G=L |
| <0.7uVrms @G=M | |
| <0.9uVrms @G=H | |
| Channel Crosstalk@1kHz | -91dB |
| IMD CCIF@(18kHz+19kHz) | -116dB |
| IMD SMPTE@(60Hz+7kHz) | -110dB@SMPTE4: 1 |
| -115dB@SMPTE1: 1 | |
| Input Sensitivity | 25Vrms @G=L |
| 9.0Vrms @G=M | |
| 3.0Vrms @G=H | |
| Gain | -9.9dB @G=L |
| 0dB @G=M | |
| 9.5dB @G=H | |
| Output Impedance | 20Ω |
