US
TOPPING

TOPPING E2x2 OTG USB Audio Interface

  • 192 kHz / 24-bit recording
  • Ultra-linear preamp
  • Headphone amp and optical output
  • Dual mobile streaming, zero-latency monitoring
  • 2 channels, XLR input
  • 1.2 pounds, 5.08 x 7.36 x 1.97 inches

Updated 23 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A white, compact USB interface with a headphone amp, an optical output and phone support through OTG. The listing offers no description and no input or output breakdown.

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ASIN: B0DBPQWPPBModel: E2x2 OTGCategory: Audio Interfaces

Overview

TOPPING builds the E2x2 OTG as a USB interface with an ultra-linear preamp, a headphone amplifier and an optical output. It works with a computer or a smartphone, and the title promises zero-latency monitoring.

Mobile streaming from a phone and recording at the top sample rate cover the main uses, and the supported-software list is wide. The limitation is a listing with no descriptive text and nothing on the layout of inputs and outputs.

Who it's for

Streamers, podcasters and guitarists who switch between a laptop and a smartphone. Anyone who needs full connection details, or who wants a larger channel count, should look elsewhere.

Pros and cons

Pros
  • Works with computers and phones
  • Headphone amp built in
  • Wide software support
Cons
  • No description in the listing
  • Input and output layout not listed

Performance notes

A low-noise preamp is the foundation for microphone recording, and the headphone amp drives monitoring. Direct monitoring avoids delay during tracking. The optical output sends a digital signal onward to other gear.

Specifications

BrandTOPPING
ModelE2x2 OTG
Dimensions & fit
Item weight1.2 poundslower than 89% of 48 audio interfaces
Item Dimensions D x W x H5.08 x 7.36 x 1.97 inches (D x W x H)
Bit depth24-bit
Compatibility & installation
Connectivity TechnologyAUX, USB
Compatible DevicesGuitar, headphone, microphone, personal computer, smartphone
Warranty & support
Supported SoftwareAvid Pro Tools, Ableton Live, Steinberg Cubase, Studio One, Logic Pro, Nuendo, Reaper, Audacity, Adobe Audition and others
Other details
Number of Channels2
Audio InputXLR
Maximum Sample Rate192 kHz
Digital ioOptical

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Frequently asked questions

Does the listing give care or setup guidance for the TOPPING E2x2 OTG?

No. The listing has a title and a spec table but no instructions.

Can the TOPPING E2x2 OTG work with a phone?

Yes. The title lists dual mobile streaming and PC and mobile compatibility, and the spec table names a smartphone.

Does the TOPPING E2x2 OTG have an optical output?

Yes. The title lists an optical output.