TOPPINGE2x2 OTG USB Audio Interface - Ultra-Linear Preamp & Powerful Headphone Amp,Optical Output, Dual Mobile Streaming, Zero-Latency, 192kHz/24bit Recording, PC/Mobile Compatible (Black)

This interface is amazing. I was in the market for more i/o, but I didn't want to break the bank. This is less expensive than some really cheesy options from big brands, yet it specs as high as some of the most expensive. I've experienced a noticeable change in audio quality since upgrading to this interface. The loopback function is a great feature as well. The independent headphone control is amazing, and the headphone amps are great! The pots on this thing are very sturdy and not cheap at all. It takes effort to turn the knobs, which I really enjoy.

I've had many audio interface in the past 20 years, all the brands, and this one is in my opinion very good for its price. I wanted something where I could have guitar, bass, microphone, and an extra line for synth, and this one does it. It has a VERY clean sound, absolutely no static, and although it has support for 2 pair of headphones, that's not something I've needed thus far. It was instantly recognized by my new MacMini Pro, and I'm more than happy with my purchase. It comes with its own (downloadable) digital interface, which makes it easy to mute, unmute channels, etc. Some things I've had troubles with prior to this unit, is volume of instruments or microphone in the DAW. No longer so - high volume, still clean sound. If you need a bit more that just a guitar and a microphone input, I'd say give this one a try. I have it set to 48000 Hz, but you can do 192000 Hz if you'd like. It's very solid in its build, made of metal, sturdy, not a toy. Knobs feel soft and easy to manipulate.

This is a really well designed audio interface. It's overall look and feel reminds me of classic 2x2 audio interfaces of the past. The knobs feel really great and it has multiple knobs, which is great. you don't have to click a button to active then turn the one knob that is on the interface like other interfaces do. So you can quickly adjust levels with ease.The overall sound is great and the preamps are nice. I have tested these and should have enough power to drive even something like the sm7b. The headphone output is really great and loud and packs plenty of power.The overall feel of this interface is nice, a flat black matte finish does not pick up finger prints and gives it a professional feel.This does not include any recording software but it makes up for that with its control software of the interface. With that software you get different mixes and virtual playback routing options, loopback and OTG, so you can connect your phone or ipad and stream audio between the 2.The one downfall but seems to be a tread lately is that it is USB-C but if you are using it with a standard usb cable, it will require you to use an additional usb-c cable to provide it power. Not a big deal just be aware.Overall I would recommend this interface for small recording at home or if you travel around and want something to put in your bag to use. It does require some extra power with non usb-c devices but it does offer an on and off switch.

I've tried many interfaces... this one is the best. I was able to pump up the microphone, the previous ones couldn't do what this card does at 50 percent at maximum, and it's impossible to convey how much the headphones pump up... in this price range this is the top... there are no equals...

Not ready for mobile-only use, lots of bugs. It would consistently forget the output mix ("Mix A") and just not have one selected, so it usually made no sound at all - firmware update did not fix it as of July 2025.You could of course change this easily from the desktop software, but if you power-cycle without the desktop driver it forgets again, so it stayed silent unless my PC was connected. ADC sounds lovely, the headphones also when they worked. Two things: they should install the rubber feet so it doesn't tip over when you plug in an XLR cable, and even if you plug in a power cable (I tried several), often it boots up with a blinking power light.

This interface is wonderful. The included software (mixing software) is very sophisticated to my amateur eyes and is fully capable of my mixing needs. Sound is outstanding. I am using this as much a a mixer for public presentations using a microphone and an ipad sending out to powered speakers. I couldn't be happier!

Ottimo

This is a great interface fo beginners as well as some seasoned audio buffs who just need the basics. It works just well as other interfaces that cost much more money and gives you the option of two different color schemes, for the look you need in your home studio.