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Key-Largo™

Radial Engineering Ltd.

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Overview

The Key-Largo is a compact keyboard mixer that also includes the real-

time performance attributes of a footswitch controller, allowing you to 

easily create an exciting and professional performance on stage. The 

best way to approach the various features of this powerful device is to 

break each section down into modules before addressing the Key-Largo 

as a whole.

SUSTAIN

EFFECTS

GROUND

LIFT

GND

USB

EFX SEND

KEY  LARGO

KEY  LARGO

INPUT-1

VOL  PEDAL

INPUT-2

INPUT-3

EFFECTS

MONITOR

15VDC

USB

RIGHT

LEFT

MAIN

RECV

LEVEL

EFX

ON

OUT - MIDI - IN

SUSTAIN

OPEN

CLOSED

4 CHANNEL

KEYBOARD

MIXER

Made  in  Canada

CH-1

CH-2

CH-3

MONO

STEREO

EFFECTS

TM

LEVEL

LEVEL

LEVEL

EFX SEND

EFX SEND

EFX SEND

MON

MAIN

GROUND

LIFT

GND

LEVEL

LEVEL

USB ASSIGN

LIVE

RECORDING

CH-1, 2, 3

The design begins with ¼” TS (tip-sleeve) inputs that allow you to 

connect up to three stereo keyboards at once. The Key-Largo has 

tons of headroom so it can handle your hottest keyboard outputs, 

and it features individual level controls to balance the signal levels 

of each instrument. For mono keyboards, simply connect to the left 

input only – the Key-Largo will automatically route the signal to both 

the left and right outputs.

USB

In addition to functioning as a mixer, the Key-Largo is also a high-

quality USB audio interface. This means you can connect to your 

laptop to play back soft synths or other backing tracks. This connec-

tion can also be used to record your performance using your digital 

audio workstation of choice.

eFFeCTS

The Key-Largo effects loop lets you share your favorite pedal or 

rackmount effects unit across all of your keyboards. This can be used 

with mono or stereo effects, and is easily activated/deactivated with 

a built-in footswitch. EFX SEND/RECV knobs provide precise control 

over which channels feed the effects loop, as well as how much of 

the effects return is blended with the dry signal from your keyboards.   

MONiTOrS

Balanced ¼” TRS monitor outputs provide the option to connect to 

a pair of powered speakers for easy on-stage monitoring. A level 

control lets you adjust the volume to suit, and a ground lift switch is 

provided to help reduce noise from ground loops.

MAiN OUT

The main outputs of the Key-Largo are balanced XLRs for connec-

tion to a console or PA system. They feature transformer isolation to 

eliminate buzz and hum, as well as a ground lift switch for additional 

noise abatement.

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Summary of Contents for Key Largo

Page 1: ...USER GUIDE KEY LARGO Radial Engineering Ltd 1588 Kebet Way Port Coquitlam BC V3C 5M5 Tel 604 942 1001 Fax 604 942 1010 email info radialeng com www radialeng com...

Page 2: ...all in a compact pedal that can be easily controlled during a live performance The Key Largo is packed with features and offers a number of ways in which it can be used To fully utilize all the possib...

Page 3: ...left input only the Key Largo will automatically route the signal to both the left and right outputs USB In addition to functioning as a mixer the Key Largo is also a high quality USB audio interface...

Page 4: ...5 USB LEVEL CONTROL Used to adjust the USB audio return from your laptop 6 EFX RETURN Master effects return control used to optimise the effects loop signal path 7 MONITOR OUT Used to adjust the stage...

Page 5: ...d to feed a pair of powered speakers for on stage monitoring 16 MAIN OUT Stereo XLR balanced outputs are used to feed the PA system transformer isolated to eliminate ground loops 17 VOLUME PEDAL SEND...

Page 6: ...The Key Largo is powered via a 15VDC center pin positive supply A power supply cable lock is located just above this connection allowing you to secure the cable and prevent accidental disconnection U...

Page 7: ...N OUT to the PA or a set of powered speakers via XLR cables Start with the CH 1 level control at around 12 o clock and slowly turn up the MAIN level until you can hear your first keyboard Repeat the p...

Page 8: ...com radial drivers php to download the latest drivers for the Key Largo Install these drivers before connecting the Key Largo to your computer via USB Once connected to your computer via USB the Key L...

Page 9: ...make sure that the recessed Effects switch is disengaged Use insert cables wired with TRS to 2x TS connectors to connect the SEND jack to the left and right inputs of the effects unit and use a second...

Page 10: ...then engage the recessed sustain switch on the side of the Key Largo to change the connection from normally open to normally closed Adding a Volume Pedal You can use an external stereo volume pedal to...

Page 11: ...I output of your keyboard to the MIDI IN on the Key Largo using a standard MIDI 5 pin DIN connector Please refer to your DAW s manual for instructions on how to set up a MIDI record playback track or...

Page 12: ...is in RECORDING mode and the USB audio from the computer is sent directly to the MAIN and MONITOR outputs This configures the Key Largo for use as a USB recording interface for tracking and overdubbi...

Page 13: ...20k Ohms Input Impedance FX Return 50k Ohms Input Impedance Volume Return 485k Ohms Output Impedance XLR 300 Ohms Output Impedance 1 4 450 Ohms Output Impedance FX Send 1k Ohms Output Impedance Volume...

Page 14: ...OUT MAIN OUT FX RETURN FX RECV MON LEVEL MAIN LEVEL FX FOOTSWTICH VOL SEND VOL RETURN MAIN FX MIX INPUT 1 INPUT 2 INPUT 3 USB INPUT LEVEL FX SEND LEVEL FX SEND LEVEL FX SEND FX SEND LEVEL Block Diagr...

Page 15: ...IN OUT FX RETURN FX RECV MON LEVEL MAIN LEVEL LIFT FX FOOTSWTICH LIFT VOL SEND VOL RETURN MAIN FX MIX INPUT 1 INPUT 2 INPUT 3 USB INPUT LEVEL FX SEND LEVEL FX SEND LEVEL FX SEND LEVEL Block Diagram re...

Page 16: ...showing date of purchase and the dealer name must accompany any request for work to be performed under this limited and transferable warranty This warranty shall not apply if the product has been dama...

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