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Topping A50 III Headphone Amplifier NFCA modules 12V Trigger Fantasy HPA for Desktop (Black)
- Ultra-high Performance NFCA modules. A50 Ill uses the same NFCA(Nested Feedback Composite Amplifier) module from A50s. Voltage Current hybrid feedback architecture along with UHGF(UltraHigh Gain Feedback) technology provides excellent DC and AC performance. High-output current drive capability allows the amp to drive low-impedance headphones with ease.
- Full aluminum case. A50 Ill has a unique integrated design. lt has gone through dozens of processes of planning, design and precision machining from solid aluminum bricks. CNC machining provides excellent electromagnetic shielding while giving the A50 Ill a smooth appearance and superior strength. lt is not only the masterpiece of craftsmanship, but also the perfect combination of art and technology.
- Single-end / Balanced application. The A50 Ill has a 6.35mm single-ended and 4.4mm balanced headphone jack, as well as RCA single-ended and TRS balanced input. t is simple and efficient for you to choose different input and o
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Overview
Specs
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Specifications
:SEIN/SE OUT BAL IN/SE OUT SE IN/BAL OUT BAL IN/BAL OUT
THD+N <0.00006% <0.00007% <0.00007% <0.00012%
@1kHzA-wt @Output=500mW (32O) @Output=500mW (32O) @Output=2000mW (32O) @Output=2000mW (32O)
<0.00006% <0.00006% <0.00006% <0.00008%
@Output=80mW (300O) @Output=80mW (300O) @Output=320mW (300O) @Output=320mW (300O)
THD <0.0002% <0.0005% <0.0002% <0.0002%
@20-20kHz 90kBW @Output=500mW (32O) @Output=500mW (32O) @Output=2000mW (32O) @Output=2000mW (32O)
<0.0001% <0.0003% <0.0001% <0.0001%
@Output=80mW (300O) @Output=80mW (300O) @Output=320mW (300O) @Output=320mW (300O)
SNR 141dB 136dB 144dB 137dB
@MAX OUT 1kHz A-wt Dynamic Range 141dB 136dB 144dB 137dB
@1kHzA-wt
Frequency Response 20Hz-40kHz (+- 0.05 dB) 20Hz-40kHz (+- 0.1 dB) 20Hz-40kHz (+- 0.05 dB) 20Hz-40kHz (+- 0.05 dB)
10Hz-100kHz (+- 0.1 dB) 10Hz-100kHz (+- 0.5 dB) 10Hz-100kHz (+- 0.1 dB) 10Hz-100kHz (+- 0.1 dB)
Output Level 21Vpp @G=L 21Vpp @G=L 18Vpp @G=L 18Vpp @G=L
21Vpp @G=M 21Vpp @G=M 42Vpp @G=M 42Vpp @G=M
21Vpp @G=H 21Vpp @G=H 42Vpp @G=H 42Vpp @G=H
AP measured noise level <0.7uVrms @G=L <0.7uVrms @G=L <0.9uVrms @G=L <0.9uVrms @G=L
@A-wt <0.7uVrms @G=M <0.7uVrms @G=M <0.9uVrms @G=M <0.9uVrms @G=M
<1.2uVrms @G=H <1.1uVrms @G=H <2.1uVrms @G=H <2.1uVrms @G=H
Actual noise level * <0.3uVrms @G=L <0.3uVrms @G=L <0.7uVrms @G=L <0.7uVrms @G=L
@A-wt <0.3uVrms @G=M <0.3uVrms @G=M <0.7uVrms @G=M <0.7uVrms @G=M
<1.0uVrms @G=H <1.0uVrms @G=H <2.0uVrms @G=H <2.0uVrms @G=H
Input sensitivity 13Vrms @G=L 9.2V rms @G=L 13Vrms @G=L 9.2V rms @G=L
8.0V rms @G=N 8.0V rms @G=M 7.8V rms @G=M 7.8V rms @G=M
1.9V rms @G=H 1.9V rms @G=H 1.9V rms @G=H 1.9V rms @G=H
Gain - 12.0 dB @G=L - 12.0 dB @G=L - 6.0 dB @G=L - 6.0 dB @G=L
0dB @G=M 0dB @G=M 6.0 dB @G=M 6.0 dB @G=M
11.9 dB @G=H 11.7 dB @G=H 17.9 dB @G=H 17.7 dB @G=H
Output Impedance <0.1O <0.1O <0.2O <0.2O
Input lmpedance 10.0 kO @G=L 2.0 kO @G=L 10.0 kO @G=L 2.0 kO @G=L
2.5 kO @G=M 2.0 kO @G=M 2.5 kO @G=M 2.0 kO @G=M
2.5 kO @G=H 2.0 kO @G=H 2.5 kO @G=H 2.0 kO @G=H
Output Power 2150mWx2 @16O THD+N <0.1% 3500mW x 2 @32O THD+N<0.1%
1400mW x 2@32OTHD+N <0.1% 2700mW x 2 @64O THD+N<0.1%
190mW x 2@300O THD+N <0.1% 760mW x 2@300O THD+N<0.1%
100mW x 2@600O THD+N <0.1% 395mW x 2@600O THD+N<0.1%
Load lmpedance >8O
* Note: The actual noise level is obtained by boosting the noise of A50 III by 40dB using a low noise amplifier in front of the APx555B then dividing the measured noise by 100 times.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by JMDesign Return Policy
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