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Colour: Black


  • AK4499EQ DAC with 132dB dynamic range and ultra-low distortion
  • Six-channel discrete NFCA high-performance headphone amplifier
  • Hybrid relay volume control for high-precision adjustment
  • Independent power for DAC and headphone amplifier circuits
  • Aurora UI with dual 2.0-inch full-color screens
  • Wide range of digital inputs and outputs
DX9 DAC Paramaters (Line out / USB In @ 96kHz)
THD+N@1kHz (A-wt) <0.00008% <0.00007%
THD @20-20kHz 90kBw <0.00015% <0.00015%
SNR@1kHz (A-wt) 127dB 131dB
Dynamic range @1kHz (A-wt) 127dB 131dB
Frequency Response 20Hz-20kHz (‡0.2dB)
20Hz-40kHz (+0.6dB)
20Hz-20kHz (‡0.2dB)
20Hz-40kHz (+0.6dB)
Output Level 2.1Vrms@0dBFS 4.2Vrms@0dBFS
Noise@A-wt <1.0uVrms <1.3uVrms
Channel Crosstalk -125dB@1kHz -125dB @1kHz
Channel Balance 0.3 dB 0.3 dB
Output Impedance 50Ω 100Ω
DX9 Headphone Amplifier specifications (USB In@96kHz)
Single-ended Output Balanced Output
THD N @1kHz (A-wt) <0.00010% @Output=550mW (32Ω)
<0.00008% @Output=60mW (300Ω)
<0.00007% @Output=550mW (32Ω)
<0.00007% @Output=60mW (300Ω)
THD @20-20kHz 90KBWN <0.00060% @Output=550mW (32Ω)
<0.00030% @Output=60mW (300Ω)
<0.00050% @Output=550mW (32Ω)
<0.00030% @Output=60mW (300Ω)
SNR @MAX OUT 1kHz (A-wt) 131dB @1kHz 132dB @1kHz
Dynamic Range @1kHz (A-wt) 131dB @1kHz 132dB @1kHz
Frequency Response 20Hz-20kHz (‡0.2dB)
20Hz-20kHz (‡0.2dB)
20Hz-40kHz (‡0.6dB)
Output Level 12Vpp @G=L
24Vpp @G=H
12Vpp @G=L
47Vpp @G=H
Noise@A-wt <1.6uVrms @G=L
<2.4uVrms @G=H
<1.3uVrms @G=L
<4.2uVrms @G=H
Channel Crosstalk -98dB @1kHz -121dB@1kHz
Gain G=L 12.5dB (Vrms/FS)
G=H 18.5dB (Vrms/FS)
G=L 12.5dB (Vrms/FS)
G=H 24.5dB (Vrms/FS)
Channel Balance 0.3 dB 0.3 dB
Output Impedance <0.10 <0.10
Output Power 3300mW × 2 @ 16Ω THD+N<1%
2100mW × 2 @32Ω THD+N<1%
1190mW × 2 @64Ω THD+N<1%
240mW × 2 @300Ω THD+N<1%
10000mW × 2 @16Ω THD+N<1%
7080mW × 2 @32Ω THD+N<1%
4250mW × 2 @64Ω THD+N<1%
950mW × 2 @300Ω THD+N<1%
460mW × 2 @600Ω THD+N<1%
Load Impedance >8Ω 100Ω
  • TOPPING DX9 DAC/Headphone Amplifier
  • Dedicated Remote Control
  • User Manual
  • Power Cord
  • Optical Cable
  • USB Cable

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