TOPPING E2X2 USB Audio Interface User Manual

TOPPING E2X2 USB Audio Interface

Contents list

• E2x2: x 1
• Type A to Type C cable: x 1
• Type C to Type C cable: x 1
• 6.35 mm to 3.5 mm adaptor: x 1
• Quick Start Guide: x 1
• Product Information Card: x 1

Attribute

• Measured: 18.7cm x 12.9cm x 5.0cm (Include protruding parts)
• Weight: 530g
• Power input: USB TypeC port (DC5V/0.8A)
• USB protocol: USB 2.0
• Microphone inputs: 2x Combo connector (Equipped with 48V phantom power switches)
• Instrument inputs: 2x Combo connector
• Line inputs; 2x Combo connector
• Line outputs: 2x
• Headphone output: 1x
• Zero-latency direct monitoring: Yes (Equipped with monitor mix knob)
• Input meter: Yes (2×8 LED indicators)
• Output meter: Yes (2×8 LED indicators)
• Mic pre modules: Ultra-linear
• Headphone amp modules: NFCA-LE
• Supported sampling rates: 24bits/44.1 kHz-24bits/192kHz
• Software Control: Yes (TOPPING Professional Control Center)
• DAW channels: 6x
• Loop back channels: 4x
• OS support: Mac/Win/iOS/Android
• Power switch: Yes

Parts and names

Front panel

1. IN1 &IN2
   For connecting microphones, instruments (e.g., guitar) or line-level devices. These can be used with both XLR and 6.35mm (balanced or unbalanced) phone plugs. Microphones will normally be connected using XLR plugs. Instruments should be connected via 6.35mm TS plugs, and line-level devices should be connected via 6.35mm TRS plugs.

2. INST
   Instrument/Line input switches for each input which alter gain and input impedance to suit either instrument or line level signals. Line in when the button light is off; instrument in when the button light is on.

3. 48V
   48V phantom power switches for mic inputs. When light is on, E2x2 enables 48V phantom power at corresponding XLR socket.
   Caution

   • Phantom power is only required for condenser microphones and may damage the connected equipment that does not require it. Therefore, turn phantom power off when it is not required. Make sure if your microphone needs the 48V phantom power before turning it on.
   • Set all volume levels to minimum before turning phantom power on or off.

4. Input gain knobs
   Adjust the gain level of microphone, instrument or line input. Rotate counterclockwise to reduce the gain level and clockwise to increase the gain level. Watch the input meter while adjusting gain and reduce the gain level when red light is on (clipping).

5. MON
   Press and light up the MON button to enable direct monitoring, which routes the channel’s input signal directly to the left and right channels of the headphone output, so that you can monitor your input signals without any latency.

6. LED Meters
   IN1&2 are the input meters and OUT1 &2 side are the output meters.
   If your signal is hitting CLIP (top red LED), which means it is clipping, reduce the signal level.

7. Power indicator
   Solid light: Working state
   Light off: Power off status
   Breathing light: Standby state
   When the automatic standby function is on, if power signal is detected while no USB signal, IN1 and IN2 signals are present, the power indicator will flash and E2x2 will enter standby state after one minute. Once having detected valid USB signal, it will automatically return to working state.
   *Automatic standby setting is in the of TOPPING Professional Control Center.

8. MONITOR
   This knob affects the level sent out of LINE OUT to your monitors. Rotate counterclockwise to decrease the volume and clockwise to increase the volume.

9. Input monitor mix
   After pressing and lighting up the MON button, use this to adjust the balance between the live input signals and playback streams from your computer. Rotating counterclockwise will increase the level of the input signal relative to the playback stream; Rotating clockwise will increase the level of playback stream relative to the input signal.
   This knob does not affect the recording level of input signals.

10. Headphone volume control
    For adjusting headphone volume level. Rotate counterclockwise to decrease the volume and clockwise to increase the volume.

11. 6.35mm headphone output jack
    Connect your headphone here.

12. GAIN
    Headphone amp gain setting. Low gain when the button light is off; high gain when the button light is on.

Rearpanel

13. LINE OUT
    6.35mm TRS balanced jacks. For connecting to active speakers or amplifier.

14. USB·C
    Connect the E2x2 to a computer/tablet/mobile phone via the provided USB cable. This connection also powers the E2x2 depending on the power supply of your USB port.

15. POWER
    Connect to a DC5V power supply if your USB port can’t provide enough power, especially when you connect a mobile phone/a tablet. Then, the USB-C port beside it is no longer used for power input, only for data transmission.

16. **Power switch

**

Press and hold the button at the top left corner while powering on the device until all meter indicators light up, and the factory settings can be restored.

Connection

Make sure to set all volume levels to minimum before connecting or disconnecting the external device. Otherwise, high-volume output may damage your hearing or equipment.

PC mode/Mobile mode

Press and hold the 48V button of IN1 while powering on the device to enter the setup.
Press the same 48V button again to switch modes. 8 lights on is PC mode; 4 lights on is mobile mode. Power off and reboot to save setting.

TOPPING Professional Control Center

Please download the reference guide a/ TOPPING Professional Control from https://www.topping.pro/downloads/TOPPING Professional Control Reference Guide.pd/.

Audio Set-up in your DAW

E2x2 is compatible with any DAWs that supports Core Audio on Mac or ASIO on Windows.
You need to ensure that E2x2 is selected as theASIO driver (Windows) or Core Audio driver (Mac) in the DAW’s preferences/playback settings. If you are not sure where these options can be found, please refer lo your DAW’s user guide.

Troubleshooting

No power

1. Check if the rear panel power switch is in the ON position.
2. It may be caused by insufficient power supply, please try to connect DC5V power supply to the power input.
3. Confirm if the USB cable is broken or damaged, replace the USB cable with a new one. Use a USB cable no longer than 2 meters.
4. Try with other USB ports of your computer.
5. Check if the problem is on the computer. Try with another one.

Playback sound cannot be heard

1. Check the speaker connections and the volume settings on the speakers.
2. Adjust the E2x2 Line output and headphone amp output volume.
3. Check the settings on the ToppingPro.
4. Connect E2x2 and your computer directly without using a USB hub.
5. Remove the USB devices which are connected with your computer and not in use, and then confirm the sound.
6. Quit all applications you are not using then confirm the sound.

Recorded audio is too loud, too quiet or silent

1. Adjust the E2x2 input gain level.
2. When using the condenser mic which needs 48V phantom power, turn phantom power on.
3. Check the settings on the ToppingPro.

Sound breaks up
Set the buffer size (latency) in the audio application that you are using or in TOPPING Professional driver to a larger value (Windows only) .

The sound of the device connected to the input jack is distorted
Watch the input meter and reduce the input gain level if clipping indicator is on.

Cannot play or record

1. Confirm that E2x2 is set for input and output in the software that you are using.
2. Confirm that the E2x2 is connected to the computer correctly.
3. Quit all the software that is using the E2x2, and unplug and re-plug the USB cable connected to the E2x2.

Precautions

1. Do not keep the unit in a hot, humid environment or hit the unit strongly.
2. Opening the case instantly voids the warranty!
3. Indoor use only.
4. Topping accepts no liability for any loss or damage arising directly or indirectly from the failure of E2x2.
5. For improvement purpose, specifications subject to changes without prior notice.

Specifications (@24bits/96kHz)

Microphone Inputs

• Equivalent Input Noise @A-wt, 150 Ohm: -130.SdBu
• THD+N @A-wt: -110d8 (0.0003%)
• Dynamic Range @A-wt: 115dB
• SNR@A-wt: 115d8
• Crosstalk @1 kHz: -140d8
• Frequency Response: 20Hz-40kHz (±0.2d8)
• Maximum Input Level: 8.6dBu
• Input Impedance: 1.5K Ohms
• Available Gain: 58d8 + 20d8 (20d8 digital gain)
• Phantom Power: 48V
• Connector Type: XLR connector of the combo socket

Line Inputs

• THD+N @A-wt: -107dB (0.00045%)
• Dynamic Range @A-wt: 115d8
• SNR@A-wt: 115d8-140d8
• Crosstalk @1 kHz:
• Frequency Response: 20Hz-40kHz (±0. 1 dB)
• Maximum Input Level: 23.9d8u
• Input Impedance: 9K0hms
• Available Gain: 58dB + 20d8 (20d8 digital gain)
• Connector Type: TRS connector of the combo socket

Instrument Inputs

• THD+N @A-wt: -108d8 (0.0004%)
• Dynamic Range @A-wt: 115d8
• SNR@A-wt: 115dB
• Crosstalk @1 kHz: -140d8
• Frequency Response: 20Hz-40kHz (±0.3dB)
• Maximum Input Level: 14.8d8u
• Input Impedance: 1M Ohms
• Available Gain: 58dB + 20dB (20dB digital gain)
• Connector Type: TS connector of the combo socket

Line Outputs

• THD+N @A-wt: -100d8 (0.001 %)
• Dynamic Range @A-wt: 115d8
• Analogue Dynamic Range@A-wt, -40d8 attenuation: 127dB
• SNR@A-wt: 115d8
• Crosstalk@1 kHz: -128dB
• Frequency Response: 20Hz-40kHz (±0.3d8)
• Maximum Input Level: 14d8u
• Noise@A-wt: 1.8uVrms
• Output Impedance: 100 Ohms
• Connector Type: 6.35mm TRS balanced jack

Headphone Outputs

• THD+N @A-wt: -100dB (0.001%)
• Dynamic Range @A-wt: 115d8
• Analogue Dynamic Range@A-wt, -40dB attenuation: 1328
• SNR@A-wt: 115dB
• Crosstalk @1 kHz: -120d8
• Frequency Response: 20Hz-40kHz (±0.3dB)
• Maximum Output Level: 0dBu@ Gain= L, 17d8u @Gain=H
• Noise@A-wt: 1 uVrms
• Output Impedance: 1 Ohms
• Connector Type: 6.35mm stereo headphone jack
• Output Power:
  • 580mW x 2 @320 THD+N<1 %
  • 380mWx2@64O THD+N<1%
  • 198mWx2@150O THD+N<1%
  • 105mWx 2@300O THD+N<1%
  • 55mW x 2 @6000 THD+N<1 %

*Note: The above data is the result of the test in TOPPING laboratory.

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