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Details
Topping L30 II
NFCA Headphone Amplifier Preamplifier Black
Topping unveils its L30 II, evolution of the very good L30 headphone amplifier and preamplifier. This new version is based on the architecture of the first model, while bringing many improvements to optimize the performance of the device and its sound reproduction.
Differences between L30 II and L30
L30 II
L30
Amplifier
Optimized NFCA module
NFCA
THD+N
< 0.00006%
< 0.00007%
Dynamic range
144dB
141dB
Output power @ 300 Ohm
2x 560mW
2x 280mW
Gain
-14dB / 0dB / 16.5dB
-9.9dB / 0dB / 9.5dB
Output voltage
37Vpp
26Vpp
Improved NFCA
The Topping L30 II uses a revised NFCA (Nested Feedback Composite Amplifier) amplifier module. This one allows notably to double the output power available under 300Ω, compared to the L30. An output power offering the possibility to the L30 II to accompany the vast majority of headphones on the market, including the most demanding models with a high impedance. The new circuit also offers an ultra-low noise level measured at 0.3µV, a dynamic page of 144dB as well as a THD+N of 0.00006%.
Gain setting
In order to allow the L30 II to accompany both high-impedance headphones and very sensitive in-ear monitors, the amplifier offers a three-level gain control: -14dB, 0dB and 16.5dB.
| 1 | Output selector |
| 2 | Gain selector |
| 3 | Power indicator |
| 4 | Jack 6.35mm headphone output |
| 5 | Volume button |
| 6 | Right channel RCA input |
| 7 | Left channel RCA input |
| 8 | Right channel RCA output |
| 9 | Left channel RCA output |
| 10 | Power connector |
Technical characteristics
| Specifications | |
|---|---|
| Product type | Headphone amplifier and preamplifier |
| Amplification module | NFCA |
| Input | 1x Stereo RCA |
| Outputs | 1x Stereo RCA 1x Jack 6.35mm headphone outout |
| Headphone amplifier measurements | |
|---|---|
| THD+N @ 1kHz, A-Weighting | < 0.00006% @ 500mW, 32Ω < 0.00005% @ 80mW, 300Ω |
| THD @ 90kBw, 20Hz-20kHz | < 0.00008% @ 500mW, 32Ω < 0.00007% @ 80mW, 300Ω |
| SNR @ Max Out, 1kHz, A-Weighting | 144dB |
| Dynamic range @ 1kHz, A-Weighting | 144dB |
| Frequency response | 20Hz-40kHz (±0.05dB) |
| Output level | 14Vpp @ G=L 31Vpp @ G=M 37Vpp @ G=H |
| Noise level | < 0.3µVrms @ G=L < 0.3µVrms @ G=M < 1.4µVrms @ G=H |
| Crosstalk @ 1kHz | -92dB |
| Input sensitivity | 25Vrms @ G=L 11.2Vrms @ G=M 2.0Vrms @ G=H |
| Gain | -14dB @ G=L 0dB @ G=M 16.5dB @ G=H |
| Output impedance | < 0.1Ω |
| Output power | 2x3500mW @ 16Ω, THD+N < 0.1% 2x2700mW @ 32Ω, THD+N < 0.1% 2x2000mW @ 64Ω, THD+N < 0.1% 2x560mW @ 300Ω, THD+N < 0.1% |
| Load impedance | > 8Ω |
| Preamplifier measurements | |
|---|---|
| THD+N @ 1kHz, A-Weighting | < 0.00006% |
| THD @ 90kBw, 20Hz-20kHz | < 0.00007% |
| SNR @ Max Out, 1kHz, A-Weighting | 144dB |
| Dynamic range@ 1kHz, A-Weighting | 144dB |
| Frequency response | 20Hz-40kHz (±0.05dB) |
| Output level | 14Vpp @ G=L 31Vpp @ G=M 37Vpp @ G=H |
| Noise level | < 0.3µVrms @ G=L < 0.3µVrms @ G=M < 1.4µVrms @ G=H |
| Crosstalk @ 1kHz | -92dB |
| Input sensitivity | 25Vrms @ G=L 11.2Vrms @ G=M 2.0Vrms @ G=H |
| Gain | -14dB @ G=L 0dB @ G=M 16.5dB @ G=H |
| Output impedance | 20Ω |
| General | |
|---|---|
| Dimensions | 100 x 135 x 32mm |
| Color | Black |
| Package | 1x Topping L30 II 1x Power adapter 1x Male Jack 6.35mm to Female Jack 3.5mm adapter |
Additional Information
| Brand | Topping |
|---|
