Sterling Audio

collapse expand iconDescription

For years, if you were looking for accessible studio- and tour-quality microphones, Sterling Audio has been an excellent source for extraordinary value. Continuing in that tradition, the Sterling Audio H224 2x4 USB audio interface provides a solid center to your home or portable recording setup, with metering options you usually don't find at this level. The bundled software, along with your computer, gets you recording right out of the box.

Sterling Audio Harmony H224 Interface Controls

Class-A Mic Preamps

Like many legendary studio consoles, the H224 features Class-A discrete components and studio-quality audio converters. With up to 65dB of available gain, the Sterling Audio H224 provides crystal-clear sound for every mic. Each mic preamp has a dedicated pad and high-pass filter, +48V phantom power and is switchable from mic to line level, making it easy to hook up more of your gear. Metering is simple and easy to read with separate metering for inputs and outputs, so you always know what you’re seeing (and hearing). 

Sterling Audio Harmony H224 Interface Inputs and Outputs

Flexible I/O Design With Zero-Latency Monitoring

The H224 USB audio interface gets its name from its versatile I/O (input/output) configuration. In addition to the pair of balanced combination XLR/1/4" TRS inputs (that’s the first "2"), there are a pair of dedicated 1/4" TS instrument inputs that are optimized to match the output impedance of your favorite guitars and basses (the second "2"). Then, there are four line-level outputs (the final "4") that expand the flexibility of the H224 to accommodate many different production workflows, from re-amping to multiple monitor setups. A direct switch enables recording with zero-latency monitoring. There are also dedicated 5-pin MIDI connections for connections with controllers, synths and any other MIDI-enabled devices. 

Sterling Audio Harmony H224 Interface On Your Desktop

Record at Home or On the Go

Because the Sterling Audio H224 USB audio interface is bus-powered and class-compliant, it does not require an external power supply. This, in conjunction with its compact form factor and light weight, makes it extremely portable, while a robust metal enclosure adds durability. It’s not only compatible with virtually every laptop, but many tablets as well. So, you never need to be at a loss when inspiration strikes. 

Sterling Audio Harmony H224 Interface Recording Setup

Powerful Bundled Software

Sterling Audio knows you want to get started recording as soon as possible, so they’ve included an impressive collection of audio software with the H224 USB interface. This bundle includes Bitwig Studio 8-Track DAW (digital audio workstation), Two notes Engineering’s Wall of Sound guitar and bass amp, cabinet and microphone modeling plug-in, the Steven Slate All-Access plug-in package and more. 


Whether you’re just getting started on your recording journey, have been looking for a system that’s easily portable to augment your existing recording setup, or simply looking for a versatile interface you can use for vlogging and webcasting, the Sterling Audio H224 USB audio interface can slot right into whatever workflow you’ve got in mind. It’s a great combination of performance, ease-of-use and compact portability that belongs in every recordist’s bag of tricks. 

collapse expand iconFeatures

  • Desktop ergonomic design inspired by classic studio consoles
  • Studio-quality audio converters for capturing professional audio and reproduction
  • Two mic/line preamps with Class-A discrete electronics and 60dB of class-leading gain
  • Mic preamps come professionally equipped with PAD and high-pass filters
  • Two dedicated and electronically optimized instruments inputs that keep your guitars and instruments sounding the way they should
  • Dedicated metering on each input and output path for optimal signal monitoring
  • 100% USB-bus powered eliminates the need for separate power supply anywhere
  • Four dedicated professional outputs for maximum flexibility in monitoring, re-amping and workflow
  • High-output headphone amplifier section for demanding tracking environments
  • Direct Monitoring switch allows for monitoring signals pre-DAW
  • Dedicated MIDI I/O for integration with your favorite controllers, synths and electronic instruments
  • An impressive collection of audio software, including Bitwig Studio 8-Track recording software, Steven Slate Access plug-ins, and Two notes Audio: Wall of Sound guitar amp/cab modeling and mic simulators
  • Robust metal enclosure for durability
  • Included Software
    • Bitwig Studio 8-Track (valid 30 days from registration) 
    • Slate Digital All-Access Pass 30-day trial (60+ amazing plug-ins)
    • Two Notes Audio/Torpedo Wall of sound with four Custom Cabinets
    Inside the Box
    • Harmony H224, 24-bit, 192kHz audio interface
    • Harmony H224 product user’s manual
    • 1-meter USB-C to USB-A cable
    • Included free software: Use the included serialized redemption cards online with the respective product websites to acquire the software and activate per the manufacturers guidelines

    WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and Lead, which is known to cause birth defects or other reproductive harm. For more information go to

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