Price: $219.99
(as of Jan 18,2021 09:53:15 UTC – Details)



A50s Headphone Amplifier specs

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 degree @A-wt : <0.7uVrms @G=L/ <0. 8uVrms @G=H
Actual noise degree* @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 degree @A-wt : <0. 9uVrms @G=L/ <1.1uVrms @G=H
Actual noise degree* @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

Wide vary of adaptation to headphones —A50s has a excessive voltage swing of 42Vp-p, energy of 3500mW per channel when each channels are pushed and output impedance of lower than 0. 1Ohm. It simply drives power-hungry headphones with a variety of various impedance.
2 step acquire settings, adapt to varied sensitivities —A50s is provided with two acquire settings of 0dB/6dB at SE out- put(6dB/12dB at balanced output). Wide vary of acquire settings and the 0.3uVrms ultra-low noise makes A50s simply adapt to all varieties of headphones from extraordinarily delicate IEMs to most energy demanding full-sized over-ears.
P50 may present cleaner energy to A50s —(When powered by P50, max balanced output energy of A50s drop to 2 4W x 2, different energy spec just isn’t affected)
HPA/PRE computerized switching— When the A50s just isn’t linked to any headphones, it automati- cally works within the preaplifier mode, and the amplified sign is output from the RCA on the again panel. When the headphone is linked to six. 35mm or 4.4mm output, A50s mechanically switches to the headphone amp mode, and the sign is barely output to the 6.35mm and 4.4mm jack.