Zoom U-24 2-In/4-Out USB Handy Audio Interface with MIDI

Zoom U-24: A Portable 2-In/4-Out Interface for the Studio in Your Bag

The Zoom U-24 is a 2-in/4-out USB audio interface built for the home-studio musician who also needs to record away from a desk. Two XLR/TRS combo inputs with switchable 48V phantom power and independent gain take a pair of mics, a keyboard, or a mixer, while input 1 switches to Hi-Z for a guitar or bass straight in. The preamps are the same low-noise designs found in Zoom's respected H5 and H6 Handy Recorders, so the front end punches above the interface's palm-sized footprint. It records at up to 24-bit/96 kHz to a PC, Mac, or iPad, and it can run on two AA batteries when there is no outlet in reach. It is a full interface that refuses to be chained to a power socket.

Flexible Inputs for a One-Room Setup

The two combo jacks are the heart of the U-24's appeal because they cover almost anything a small studio throws at them. Phantom power feeds studio condensers, the same inputs take dynamics and line sources, and the Hi-Z switch on channel one welcomes a passive instrument with no DI box. Independent gain knobs and multi-color level indicators let you set each channel by eye before the take. That means a singer-guitarist can track a vocal and a guitar at once, or a producer can bring a synth and a mic in together. It is enough I/O to make real records without becoming a rack full of gear.

Four Outputs and MIDI Make It a Hub

Two 1/4-inch TRS outputs and a stereo RCA pair give four line outputs in total, enough to feed studio monitors and a separate mixer or headphone amp at the same time. A dedicated stereo headphone jack keeps monitoring independent, so you can set a cue mix without touching the mains. MIDI in and out connect a controller keyboard, a synth, or a drum machine, turning the U-24 from a simple mic input into the center of a compact production rig. That routing flexibility is unusual at this size. It lets the interface grow with a setup instead of capping it.

Records Where the Wall Outlet Is Not

Battery power is the U-24's signature move: drop in two AA cells and it runs for up to four hours with phantom power off, no adapter required. Connect it to an iPad and a mic and you have a mobile recording rig for a location session, a songwriting trip, or a classroom. When you are back at the desk, USB bus power takes over and nothing changes about the workflow. The same box serves the bedroom studio and the field. For a musician who works in more than one place, that portability is the whole reason to choose it.

Built for the Mobile Home-Studio Musician

The U-24 is aimed squarely at the producer or performer who wants studio-grade recording without a studio-sized commitment. Two flexible inputs, four outputs, MIDI, and battery power add up to a surprisingly complete package in something that fits in one hand. It suits the singer-songwriter tracking demos, the electronic musician wiring in a synth, and the traveling creator who records wherever inspiration lands. There is nothing to rack, nothing to configure beyond levels, and no outlet required. This is the interface for people whose studio moves with them.