Radial Key-Largo: The Gigging Keyboardist's All-in-One Command Center

The Radial Key-Largo is a compact keyboard mixer, USB audio interface, and performance pedal combined in a single stompbox-format chassis, designed to bring an entire keyboard rig -- analog synths, digital keyboards, and a laptop -- together into one clean feed for the PA. Three stereo inputs, a built-in interface, and real-time footswitch control let a single musician run a complex setup without hauling a rack. For the player who just wants to plug in, sound great, and control the show with their feet, it is the box that finally does everything you need and nothing you don't.

Three Stereo Inputs, Mixed for the Stage

The Key-Largo accepts up to three stereo keyboards, each with an individual volume control, and folds them down to a balanced stereo feed for front-of-house. Because levels are set independently, you can balance a bright digital piano against a fat analog synth and a pad in seconds, then leave the mix locked for the night. It is a purpose-built line mixer for keyboard players rather than a repurposed channel strip, so every control is exactly where a performer expects it.

A Studio-Quality USB Interface Built In

A USB connection with 24-bit/192kHz converters folds a laptop directly into the rig, whether you are triggering soft-synths on stage or capturing a performance. The Key-Largo offers both a performance mode and a recording mode, so the same box that mixes your live sound doubles as a clean audio interface for tracking ideas in a hotel room or cutting studio-quality parts at home. One device replaces the separate mixer and interface most keyboardists would otherwise carry.

Footswitch Performance Control

What sets the Key-Largo apart from an ordinary mixer is its performance pedal design. A built-in sustain footswitch controls your main keyboard hands-free, and a switchable effects loop lets you drop reverb, delay, or an outboard pedal into the mix and toggle it on with a stomp -- perfect for adding lush ambience during a solo and pulling it back for the verse. Connections for a stereo volume pedal add master-level control underfoot, so your hands stay on the keys.

High Headroom and Low Noise

Inside, a switch-mode power supply elevates the internal rail voltage to 24 volts, giving the Key-Largo the headroom to handle the hottest analog synths and the most dynamic digital keyboards without choking or distorting. Custom isolation transformers on the XLR outputs block the hum and buzz of ground loops when you connect to powered speakers or the PA, and ground lift switches on the outputs let you chase down any remaining noise. The signal stays quiet and composed even in an electrically hostile stage environment.

Separate Feeds for PA and Monitors

Balanced XLR main outputs send your stereo mix to the house system, while a separate pair of 1/4-inch monitor outputs drives your on-stage speakers independently. That split means the sound engineer gets a clean, isolated feed while you keep local control of what you hear, and a 180-degree polarity reverse is on hand to solve phase issues with the rest of the stage. It is professional signal routing packed into a pedal you can slip into a gig bag.

Who the Key-Largo Is For

The Key-Largo is made for the gigging and session keyboardist who wants a compact, road-ready hub for a multi-instrument rig -- and for the modular synthesist or laptop musician who needs a fast, high-quality way to integrate hardware and software on stage or in the studio. If a full rackmount station is more than your rig requires, the Key-Largo delivers the same Radial reliability in a stompbox you set up in seconds; step up to the rackmount KL-8 when you need four stereo inputs and redundant USB. For most keyboard gigs, this is the one box that goes on the board and never comes back off.