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Sold by: SHENZHENAUDIO
Sold by: SHENZHENAUDIO
(4190 ratings)
98% positive over last 12 months
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Topping A50s Preamplifier NFCA Fantasy HPA for Desktop HiFi 4.4mm Balanced Output Headphone Amplifier (Black)

3.8 3.8 out of 5 stars 33 ratings

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Black

Purchase options and add-ons

Item Dimensions LxWxH 4.84 x 4.33 x 1.02 inches
Voltage 15 Volts
Manufacturer TOPPING
Mounting Type Tabletop mount
Brand Fanmusic

About this item

  • 6.35mm SE & 4.4mm balanced output ---Although there is only a single-ended input, A50s has a bilt-in balanced amp circuit. Therefore, it can drive single-ended head- phones by 6.35mm output, and drive balanced headphones by 4.4mm balanced output.
  • Wide range of adaptation to headphones ---A50s has a high voltage swing of 42Vp-p, power of 3500mW per channel when both channels are driven and output impedance of less than 0. 1Ohm. It easily drives power-hungry headphones with a wide range of different impedance.
  • 2 step gain settings, adapt to various sensitivities ---A50s is equipped with two gain settings of 0dB/6dB at SE out- put(6dB/12dB at balanced output). Wide range of gain settings and the 0.3uVrms ultra-low noise makes A50s easily adapt to all types of headphones from extremely sensitive IEMs to most power demanding full-sized over-ears.
  • P50 could provide cleaner power to A50s ---(When powered by P50, max balanced output power of A50s drop to 2 4W x 2, other power spec is not affected)
  • HPA/PRE automatic switching--- When the A50s is not connected to any headphones, it automati- cally works in the preaplifier mode, and the amplified signal is output from the RCA on the back panel. When the headphone is connected to 6. 35mm or 4.4mm output, A50s automatically switches to the headphone amp mode, and the signal is only output to the 6.35mm and 4.4mm jack.
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$190.53
Get it Apr 5 - 17
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$379.00
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Get it as soon as Sunday, Mar 31
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Topping A50s Preamplifier NFCA Fantasy HPA for Desktop HiFi 4.4mm Balanced Output Headphone Amplifier (Black)
Topping A50s Preamplifier NFCA Fantasy HPA for Desktop HiFi 4.4mm Balanced Output Headphone Amplifier (Black)
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Price$190.53-15% $246.49
Typical:$289.99
-13% $173.13
List:$199.00
$99.00-13% $173.13
List:$199.00
Delivery
Get it Apr 5 - 17
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Sound quality
4.2
4.6
4.6
4.5
Volume control
4.1
4.4
4.5
4.4
Value for money
2.8
4.5
4.5
4.2
Remote Control
4.2
4.6
5.0
Sold By
SHENZHENAUDIO
SHENZHENAUDIO
Aoshida Audio-US
GenCoDeals
SHENZHENAUDIO
number of channels
4
2
4
voltage
15 volts
240 volts
220 volts
mounting type
Tabletop mount
Tabletop
Surface Mount
Surface Mount
Surface Mount

Product Description

A50s Headphone Amplifier specifications

6.35mm headphone jack

THD+N @1kHz A-wt : <0.00007% @Output=850mW(32Ω)/ <0.00006% @Output=90mW(300Ω)
THD @20-20kHz 90kBW :<0.0004% @Output=720mW(32Ω) / <0.0002% @Output= 77mW(300Ω)
SNR @MAX OUT 1kHz A-wt : 137dB
Dynamic Range @ 1kHz A-wt : 138dB
Frequency Response : 20Hz-200kHz(+0.05dB)
Output Level: 21Vpp
AP measured noise level @A-wt : <0.7uVrms @G=L/ <0. 8uVrms @G=H
Actual noise level* @A-wt : <0.3uVrms @G=L/ <0.45uVrms @G=H
Channel Crosstalk @1kHz: -86dB
IMD CCIF@(18kHz + 19kHz) : -116dB
IMD SMPTE @(60Hz + 7kHz) : -110dB, SMPTE4: 1 / -118dB, SMPTE1: 1
Input Sensitivity : 7.5Vrms @G=OdB / 3.8Vrms @G=6dB
Gain: 0.0dB@G=0dB 6.0dB@G=6dB
Output Impedance: <0.1Ω
Output Power THD+N<1 % : 1.4Wx2@32Ω / 192mW x 2@300Ω
Output Power @2Vrms IN : 485mW x 2 @32Ω / 52mW x 2 @300Ω
Load Impedance : > 8Ω

4. 4mm Balanced headphone jack

THD+N @1kHz A-wt : <0.00007% @Output=3.4W(32Ω)/ <0.00006% @Output=367mW(300Ω)
THD @20-20kHz 90kBW : <0.001% @Output=2.88W(32Ω)/ <0.0005% @Output=307mW(300Ω)
SNR @MAX OUT 1kHz A-wt : 143dB
Dynamic Range @ 1kHz A-wt : 144dB
Frequency Response : 20Hz-200kHz(+0.05dB)
Output Level: 42Vpp
AP measured noise level @A-wt : <0. 9uVrms @G=L/ <1.1uVrms @G=H
Actual noise level* @A-wt : <0.6uVrms @G=L / <0.95uVrms @G=H
Channel Crosstalk @1kHz: -128dB
IMD CCIF@(18kHz + 19kHz) : -116dB
IMD SMPTE @(60Hz + 7kHz) : -110dB, SMPTE4: 1 / -118dB, SMPTE1: 1
Input Sensitivity : 7.5Vrms @G=0dB / 3.8Vrms @G=6dB
Gain: 6.0dB@G=0dB 12.0dB@G=6dB
Output Impedance: <0.2Ω
Output Power THD+N<1 % : 3.5Wx2@32Ω 760mW x 2@300Ω
Output Power @2Vrms IN : 1950mW x 2 @32Ω / 208mW x 2 @300Ω
Load Impedance : > 8Ω


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Topping A50s Preamplifier NFCA Fantasy HPA for Desktop HiFi 4.4mm Balanced Output Headphone Amplifier (Black)


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Customer reviews

3.8 out of 5 stars
3.8 out of 5
33 global ratings

Top review from the United States

Reviewed in the United States on March 10, 2023
Color: BlackVerified Purchase

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Ricchitelli Dario
1.0 out of 5 stars Produit pas neuf!!!!
Reviewed in France on March 25, 2023
Color: BlackVerified Purchase
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Ricchitelli Dario
1.0 out of 5 stars Produit pas neuf!!!!
Reviewed in France on March 25, 2023
J'ai acheté cet Ampli NEUF noir et j'ai reçu l'ampli Silvèr et pas neuf !
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franco.tagliaro
5.0 out of 5 stars ottimo prodotto
Reviewed in Italy on December 1, 2022
Color: BlackVerified Purchase
Hans Öström
5.0 out of 5 stars Låter bra!
Reviewed in Sweden on September 15, 2022
Color: SilverVerified Purchase
Lopie
5.0 out of 5 stars 初めてのヘッドホンアンプ単体
Reviewed in Japan on July 10, 2021
Color: SilverVerified Purchase
6 people found this helpful
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Emanuele P
4.0 out of 5 stars very good but too small
Reviewed in Germany on March 18, 2024
Color: BlackVerified Purchase