Radial Engineering Key-Largo Keyboard Mixer and Performance Pedal

The Radial Engineering Key-Largo Keyboard Mixer and Performance Pedal is a unique and powerful device that combines a multi-channel keyboard mixer with a USB audio interface, while providing the ability to control elements of the performance with footswitch control.

Designed for stage use, the Key-Largo allows you to connect up to three stereo keyboards, effects and volume pedals, and a laptop computer via USB, managing all these signals to send a balanced audio feed to a PA system for a seamless performance on stage. Three stereo analog inputs feature individual volume controls to balance levels, and each can be sent to a shared effects loop to add reverb or delay in an instant using a dedicated footswitch. A USB connection allows laptop computers to be integrated into the setup for control of soft-synths, and a built-in sustain footswitch and connections for a stereo volume pedal provide additional ways to control your performance.

High Headroom, Low Noise

A switch-mode power supply inside the Key-Largo elevates the rail voltage to 24 volts for extra headroom to handle the most dynamic digital keyboards and the hottest analog synths without fear of overload or distortion. This is paired with 24bit/192kHz digital audio converters for high quality audio over USB when playing soft-synths or pre-recorded tracks. To eliminate noise when connecting multiple devices on stage, the main outputs are transformer-isolated to eliminate hum and buzz from ground loops, and all outputs are equipped with ground lift switches to further reduce noise.

Product Specifications:

Audio Circuit Type: Active circuit with audio-grade operational amplifiers

Number of Channels: 3x stereo analog inputs, 1x stereo USB input, 2x stereo analog outputs

Frequency Response: 20Hz - 20kHz ±0.5dB

Gain: +12dBu

Clip Level: +12dBu

Total Harmonic Distortion: <0.005% @ 1kHz

Input Impedance: Analog 20k Ohms

Output Impedance: XLR: 300 Ohms 1/4": 450 Ohms

Noise Floor: -91dBu

Sample Rate: 24bit / 192kHz

Features: 180° polarity reverse, Ground lift, Level Control, Effects Loop

Input Connectors: 3x Stereo Analog Inputs, 1 x Stereo USB Input

Output Connectors: Stereo XLR Balanced Outputs, Stereo 1/4" Monitor Outputs

Extras: Performance or Recording Mode

Construction: 14-gauge steel

Size (L x W x D): 8.4" x 5" x 1.9" (21.3cm x 12.7cm x 4.8cm)

Weight: 3.25lb (1.47kg)

Shipping Size (L x W x D): 13.3" x 5.1" x 3" (33.7cm x 13cm x 7.6cm)

Shipping Weight: 4.3lb (1.95kg)

Conditions: For use in dry locations only between 5°C and 40°C