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TOPPING DX1 II DAC Headphone Amplifier Black
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Topping DX1 II DAC Headphone Amplifier ES9039Q2M 32bit 384kHz DSD256 Black
The Topping DX1 II is a DAC and headphone amplifier based on an ESS ES9039Q2M conversion architecture combined with an XMOS XU316 interface, designed to deliver precise digital reproduction and controlled amplification in a compact form factor. It supports PCM streams up to 384kHz and DSD256, whilst delivering 0.00007% distortion and a dynamic range of 128 dB, utilising a low-noise design with minimal crosstalk to preserve signal integrity throughout the entire system.
It combines four-channel balanced amplification delivering up to 2x1000mW under 32Ω with a configurable 10-band equaliser, allowing you to fine-tune the sound reproduction to suit your equipment and personal preferences.
Topping DX1 II : ESS DAC chip
The Topping DX1 II features an ES9039Q2M DAC chip paired with an XMOS XU316 USB interface, enabling it to process PCM streams up to 384kHz and DSD256 whilst ensuring stable digital data transmission. This architecture is based on low-distortion conversion (0.00007% THD+N) and a dynamic range of 128dB, ensuring precise reproduction of subtle details whilst maintaining an extremely low noise level; added to this is a crosstalk figure of -140 dB, contributing to precise channel separation and a stable stereo image.
Topping DX1 II : 10-band equaliser
The DX1 II features a 10-band equaliser accessible via the TOPPING Home web interface, allowing for fine-tuning of the frequency response whilst enabling the saving and sharing of user profiles, making it easy to adapt to different headphones or sound signatures. This approach is extended by compatibility with the TOPPING Tune software locally, offering direct control of equalisation settings without relying on a network interface.
Topping DX1 II : Extended compatibility
The DX1 II features a USB-C interface that combines both power and audio signals, thereby minimising the number of connections whilst reducing the risk of unwanted ground loops. This focus on compatibility is extended with a switchable UAC 1.0 and 2.0 mode, allowing use with a variety of sources, including games consoles, whilst ensuring immediate device recognition, while the 3.5 mm TRRS headphone output extends compatibility to headsets by integrating microphone signal management.
Topping DX1 II : Balanced headphone amplification
The amplifier stage is based on a four-channel architecture that enables a balanced topology, resulting in better channel separation and reduced internal interference. It delivers up to 2 x 1000 mW under 32 Ω via 3.5 mm and 4.4 mm jack outputs, enabling it to drive a wide variety of headphones whilst maintaining a stable dynamic headroom, whilst the two-stage gain control adapts the amplification behaviour to the sensitivity of the drivers.
Technical characteristics
| Specifications | |
|---|---|
| Product type | DAC Headphone amplifier |
| Inputs | 1x USB-C 1x Optical SPDIF |
| Outputs | 1x Optical SPDIF 1x Stereo RCA 1x Jack 4.4mm 1x 3.5mm headphone jack 1x 4.4mm headphone jack |
| DAC chip | ES9039Q2M |
| Supported sampling rates | Optical : PCM 24bit 192kHz / DSD64 DoP USB : PCM 32bit 384kHz / DSD256 |
| RCA line output specifications | |
|---|---|
| Total harmonic distortion more noise (THD+N) | 0.00009% @ 1kHz, A-wt 0.0008% @ 20-20kHz, 90kBW |
| Signal-to-noise ratio (SNR) | 125dB |
| Dynamic range | 125dB |
| Frequency response | 20Hz-20kHz (±0.1dB) 20Hz-40kHz (±0.3dB) |
| Output level | 2.4Vrms @ 0dBFS |
| Noise level | ≤ 1.3µVrms |
| Crosstalk | -126dB @ 1kHz |
| Channel balance | 0.3dB |
| Output impedance | 50Ω |
| Jack 4.4mm line output specifications | |
|---|---|
| Total harmonic distortion more noise (THD+N) | 0.00007% @ 1kHz, A-wt 0.0005% @ 20-20kHz, 90kBW |
| Signal-to-noise ratio (SNR) | 128dB |
| Dynamic range | 128dB |
| Frequency response | 20Hz-20kHz (±0.1dB) 20Hz-40kHz (±0.3dB) |
| Output level | 5.1Vrms @ 0dBFS |
| Noise level | ≤ 2µVrms |
| Crosstalk | -140dB @ 1kHz |
| Channel balance | 0.3dB |
| Output impedance | 100Ω |
| Jack 3.5mm headphone specifications | |
|---|---|
| Total harmonic distortion more noise (THD+N) | 0.0005% @200mW, 32Ω / 1kHz, A-wt 0.00015% @22mW, 300Ω / 1kHz, A-wt 0.002% @200mW, 32Ω 20-20kHz, 45kBW 0.0003% @22mW, 300Ω 20-20kHz, 45kBW |
| Signal-to-noise ratio (SNR) | 125dB |
| Dynamic range | 125dB |
| Frequency response | 20Hz-20kHz (±0.1dB) 20Hz-40kHz (±0.3dB) |
| Output level | 2.3Vpp @G=L, 11.5Vpp @G=L 0.8Vrms @G=L, 4.0Vrms @G=L 0.3dBu @G=L, 14.4dBu @G=L |
| Noise level | ≤0.9µVrms @G=L ≤1.9µVrms @G=L |
| Crosstalk | -102dB |
| Gain | G=L : -1.6dB (Vrms/FS) G=H : 12.4dB (Vrms/FS) |
| Channel balance | 0.3dB |
| Output impedance | ≤1Ω |
| Output power | 2x800mW @16Ω 2x510mW @32Ω 2x260mW @64Ω 2x58mW @300Ω 2x29mW @600Ω |
| Load impedance | >8Ω |
| Jack 4.4mm headphone specifications | |
|---|---|
| Total harmonic distortion more noise (THD+N) | 0.001% @850mW, 32Ω / 1kHz, A-wt 0.0001% @90mW, 300Ω / 1kHz, A-wt 0.005% @850mW, 32Ω 20-20kHz, 45kBW 0.0003% @90mW, 300Ω 20-20kHz, 45kBW |
| Signal-to-noise ratio (SNR) | 128dB |
| Dynamic range | 128dB |
| Frequency response | 20Hz-20kHz (±0.1dB) 20Hz-40kHz (±0.3dB) |
| Output level | 4.6Vpp @G=L, 23.0Vpp @G=L 1.6Vrms @G=L, 8.1Vrms @G=L 6.3dBu @G=L, 20.4dBu @G=L |
| Noise level | ≤1.2µVrms @G=L ≤3.3µVrms @G=L |
| Crosstalk | -140dB |
| Gain | G=L : 4.4dB (Vrms/FS) G=H : 18.4dB (Vrms/FS) |
| Channel balance | 0.3dB |
| Output impedance | ≤2Ω |
| Output power | 2x730mW @16Ω 2x1000mW @32Ω 2x1000mW @64Ω 2x230mW @300Ω 2x115mW @600Ω |
| Load impedance | >8Ω |
| General | |
|---|---|
| Dimensions | 100 x 100 x 32mm |
| Color | Black |
| Package | 1x Topping DX1 II 1x Remote control 1x USB-C to USB-A cable 1x USB-C cable |
| Input | USB |
| Input | Optical |
| Output | RCA |
| Output | Jack 4.4mm |
| Output | Optical Toslink |
| Output | Jack 3.5mm |
| DAC / ADC Chip | ES9039Q2M |
| Max sampling rate | 384kHz |
| Max sampling rate | DSD256 |
| Color | Black |
| Class | N/A |
| Networking | No |
| Remote Control | Yes |
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