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TOPPING PROFESSIONAL E1X2 OTGU SB Audio Interface White

With the E1x2, Topping offers an excellent audio interface designed for musicians and audio professionals. This great interface offers a very high level of performance for perfectly transparent recording and playback.

Average votes for this product
5.0 / 5
  Based on 1 customers reviews.

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Reference : 19375
New product

159,00 €tax incl.

132,50 € tax excl.
Including 0,05 € for green tax

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Shipping date: 01-04-2026.

Orders placed before 12h (GMT+1) will generally be shipped the same day (working day).

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Facturation France
SAV France

2 Years warranty

Accessories for this product

Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.

 
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Topping E1x2 OTG Audio Interface USB 1 In 2 Out 24bit 192kHz White

Topping E1x2 : Front view

With the E1x2, Topping offers an excellent audio interface designed for musicians and audio professionals. This great interface offers a very high level of performance for perfectly transparent recording and playback.

Topping E1x2: Key functions
Topping E1x2: Mobile connection

Topping E1x2: Direct mobile connection

All you need is a USB OTG cable to connect a smartphone directly for live streaming, with lossless sound transmission.

The interface requires an external power supply when used with an OTG smartphone.

Topping E1x2: Mobile livestream with PC synchronization

You can connect the interface to a PC when you're using it for a live stream via your smartphone. By using a DAW to optimize the voice, you can enhance the sound quality of your live stream.

Topping E1x2: Mobile livestream with PC synchronization
Topping E1x2 : Livestream mobile double

Topping E1x2 : Livestream mobile double

It's also possible to connect another smartphone to play an accompaniment or audio file while the first smartphone is live-streaming. What's more, you can even use this function to launch two live streams.

Topping E1x2: Ultra-linear microphone preamp module

The E1x2 OTG features a microphone preamplifier module developed by Topping Professional with a noise figure of just -130.5dBu. Even at maximum volume, the E1x2 OTG can maintain a very low level of background noise, ensuring perfectly detailed recording. This architecture ensures that the audio signal is accurately transmitted for transparent sound.

Topping E1x2: Ultra-linear microphone preamp module
Topping E1x2: Direct connection for condenser microphones

Topping E1x2: Direct connection for condenser microphones

Equipped with 48V phantom power, the E1x2 OTG is perfectly compatible with condenser and dynamic microphones.

Topping E1x2: Low-noise voltage module

Topping's unique LNRD module provides an extremely stable power supply for the AD/DA chip, enabling it to develop its full potential for pure audio transmission.

Topping E1x2: Low-noise voltage module
Topping E1x2: High-performance headphone amplifier

Topping E1x2: High-performance headphone amplifier

With a noise floor of just 1uVrms and an output impedance of 1 Ohm, the NFCA-LE headphone amplifier module lets you use sensitive headphones without suffering from distortion or noise.

Topping E1x2: Adjustable gain

The E1x2 OTG offers two levels of gain, high gain up to +17dBu and high output power with 2x580mW at 32 Ohm. The combination of this high gain and power allows the E1x2 OTG to easily accompany high-impedance headphones, up to 600 Ohm.

Topping E1x2: Adjustable gain
Topping E1x2: Zero-latency hardware monitoring system

Topping E1x2: Zero-latency hardware monitoring system

The zero-latency design lets you monitor your audio effects in real time, while recording or mixing.

Topping E1x2: Analog volume control

The volume control knobs on the line output and headphone amplifier use an analog potentiometer, allowing more precise volume control.

Topping E1x2 : Contrôle de volume analogique

Topping E1x2: Independent mixers

Equipped with four 12-channel input mixers, the E1x2 OTG allows easy adjustment and control of audio effects. What's more, its 8 DAW channels and 46 LoopBack channels are designed to adapt to different recording, mixing and playback needs.

Download Topping Professional Control Center

Topping E1x2: independent mixers

Topping E1x2 : High audio resolution

The Topping Professional E1x2 OTG adopts an excellent USB XMOS interface, compatible with Windows, Mac, iOS and Android operating systems in particular. It supports high-resolution audio streams for recording and playback, up to PCM 24bit 192kHz.

Topping E1x2 : Interface USB XMOS
Topping E1x2: Three USB-C ports

Topping E1x2: Three USB-C ports

The Topping Professional E1x2 OTG uses USB-C connectivity for data transmission and power supply. We recommend connecting the auxiliary power connector if the E1x2 OTG is used in conjunction with a desktop computer, or if 48V phantom power is required, to avoid interference. An external power supply is also recommended when the sound card is used with a smartphone.

Interface & Connectors

xxx
1Activate / Deactivate direct monitoring
2Input gain knob
3Input level vumeter
4Output levels vumeters
5Line out level knob
6Mix monitoring level adjustment
7Headphone output volume control
8instrument / micro / line level device input
9Instrument / line in switch
1048V phantom power supply switch
11Headphone amplifier gain switch
12Headphone output
13Power button
145VDC power connector
15USB-C connector (PC)
16USB-C OTG connector (mobile)
17Line out

Topping E1x2 : Dimensions

Topping E1x2 : Schéma des dimensions

Topping E1x2 : Package

Topping E1x2 : Package

Topping Professional audio interface comparison

E1x2 OTGE2x2E4x4 Pre
OTG interfaceYesNoNo
Power supplyUSB-CUSB-CUSB-C
Interface typeUSB 2.0USB 2.0USB 2.0
MonitoringYes (adjustable mix ratio)Yes (adjustable mix ratio)Yes (adjustable mix ratio)
Input level indicator1 set of LED2 set of LED4 set of LED
Output level indicator2 set of LED2 set of LED4 set of LED
Mic preamp moduleUltra-linearUltra-linearUltra-linear
Headphone ampNFCA-LENFCA-LENFCA-LE
Supported sampling ratesUSB-C : PCM up to 24bit 192kHz
OTG : PCM up to 24bit 48kHz		PCM up to 24bit 192kHzPCM up to 24bit 192kHz
Control softwareYesYesYes
Supported OSMac, Windows, iOS, AndroidMac, Windows, iOS, AndroidMac, Windows, iOS, Android
Power buttonYesYesYes
Weight415g530g830g
Mix channels434
DAW channels868
Loopback channels646

Technical characteristics

Specifications
Product typeUSB audio interface
USB protocolUSB 2.0 (HS)
OTG USB 2.0 (FS)
Mic input1x XLR / Jack 6.35mm combo connector
Instruments input1x XLR / Jack 6.35mm combo connector
Line out2x Jack 6.35mm
Headphone out1x Jack 6.35mm
Direct zero-latency monitoringYes (with mix button)
Input vumeterYes (1x8 LED indicator)
Output vumeterYes (1x8 LED indicator)
Mic preamp moduleUltra-linear
Headphone amp moduleNFCA-LE
Supported sampling ratePCM up to 24bit 192kHz
OTG : PCM up to 24bit 48kHz 
Control softwareYes (Topping Professional Control)
DAW channels8x
Supported OSMac, Windows, iOS, Android
Mic input measurements (@ 24bit 96kHz)
Input noise-130.5dBu @ A-wt, 150Ω
THD+N-110dB (0.0003%) @ A-wt
Dynamic range118dB @ A-wt
SNR118dB
Crosstalk/
Frequency response20Hz - 40kHz (±0.2dB)
Max input level8.6dBu
Input impedance1.5kΩ
Available gain58dB + 20dB (20db digital gain)
Phantom power supply48V
XLR connector
Line input measurements (@ 24bit 96kHz)
THD+N-107dB (0.00045%) @ A-wt
Dynamic range118dB @ A-wt
SNR118dB
Crosstalk/
Frequency response20Hz - 40kHz (±0.1dB)
Max input level23.9dBu
Input impedance9kΩ
Available gain58dB + 20dB (20db digital gain)
ConnectorJack 6.35mm TRS
Mesures entrée instruments (@ 24bit 96kHz)
THD+N-108dB (0.0004%) @ A-wt
Dynamic range118dB @ A-wt
SNR118dB
Crosstalk/
Frequency response20Hz - 40kHz (±0.3dB)
Max input level14.8dBu
Input impedance1MΩ
Available gain58dB + 20dB (20db digital gain)
ConnectorJack 6.35mm TS
Line out measurements (@ 24bit 96kHz)
THD+N-100dB (0.001%) @ A-wt
Dynamic range115dB @ A-wt
Dynamic range analogique127dB @ A-wt, -40dB atténuation
SNR115dB @ A-wt
Crosstalk-128dB @ 1kHz
Frequency response20Hz - 40kHz (±0.3dB)
Max output level14dBu
Bruit1.8uVrms @ A-wt
output impedance100Ω
ConnectorJack 6.35mm TRS balanced
Headphone output measurements (@ 24bit 96kHz)
THD+N-100dB (0.001%) @ A-wt
Dynamic range115dB @ A-wt
Analog dynamic range132dB @ A-wt, -40dB atténuation
SNR115dB @ A-wt
Crosstalk-120dB @ 1kHz
Frequency response20Hz - 40kHz (±0.3dB)
Max output level0dBu @ Gain = L
17dBu @ Gain = H
Noise1uVrms @ A-wt
Output impedance1Ω
ConnectorJack 6.35mm TRS stereo
Headphone output power2x580W @ 32Ω, THD+N < 1%
2x380W @ 64Ω, THD+N < 1%
2x198W @ 150Ω, THD+N < 1%
2x105W @ 300Ω, THD+N < 1%
2x55W @ 600Ω, THD+N < 1%
ConnectiqueOTG (Type-C)
OTG Output measurements (@ OTG 24bit 48kH<-> Type-C 24bit 44.1-192kHz)
THD+N-130dB @ A-wt
Dynamic range138dB @ A-wt
SNR138dB @ A-wt
Crosstalk-154dB @ 1kHz
Frequency response20Hz - 20kHz (±0.1dB)
Max output level-0.5dBFS
General
Power supply5VDC 0.8A via USB-C
Dimensions14.5 x 12.9 x 5cm
Weight415g
ColorWhite
 
Data sheet
InputUSB
InputXLR
InputJack 6.35mm
OutputJack 6.35mm
Max sampling rate192kHz
ColorWhite
Interface chipXMOS XU308
 
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Average votes
5.0 / 5
1 reviews
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 5/5
Date :
Good sound for little money.
Very good sound card, I use it for various purposes. The inputs are quiet, the outputs are strong enough. The headphone output is a special story, I have a Hifiman he400se and I am very satisfied with the output amplification. Clear sound without delay. The software for Windows is simple but with measured information and options.
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This review has been posted for TOPPING PROFESSIONAL E1X2 OTG Audio Interface USB 1 In 2 Out 24bit 192kHz White
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TOPPING PROFESSIONAL E1X2 OTG Audio Interface USB 1 In 2 Out 24bit 192kHz White
TOPPING PROFESSIONAL E1X2 OTG Audio Interface USB 1 In 2 Out 24bit 192kHz White
With the E1x2, Topping offers an excellent audio interface designed for musicians and audio professionals. This great interface offers a very high...

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