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True to the Music

Radial Engineering Ltd.

KL-8™ Owner’s Manual

6

Headphone Safety Warning

Caution: Very Loud Amplifier

See back page for details

HEADPHONES AND CUE SWITCHES

The headphone outputs and the cue select switches on the KL-8 are designed to allow you to silently monitor your 

overall mix, or select individual inputs and listen to them without feeding the outputs on stage. This is helpful when 

testing your connections, checking patch settings on individual keyboards, or adjusting a digital soft synth. 

When the red CUE LED beside the headphone level control is flashing, this means that one of more of the CUE 

switches has been engaged on CH 1-4. Pressing a cue switch on any channel will reroute that input directly to 

the headphones, while also muting the output of that channel so that it will not feed the MAIN, MONITOR, or AUX 

outputs. 

Once all of the cue switches have been disengaged, the red CUE LED will turn off, and the headphone outputs will 

be fed a copy of the overall mix, so you can hear what will feed the Monitor outputs. If you turned up the headphone 

level when testing an input with the CUE switch, ensure that you turn back down before disengaging the CUE to 

protect your hearing.

STEREO INSERT FOR VOLUME PEDALS & EFFECTS

The KL-8 is equipped with a stereo insert point that will allow you to control the overall output of the KL-8 using an 

external volume pedal, bus compressor or effects device. This gives you the ability to control all of your keyboards 

with a single pedal, or feed them all through a particular stereo effects unit. To connect to the INSERT SEND and 

RECEIVE jacks, use 

insert cables

 wired with 1/4” TRS  to 2x TS connectors.  

Any device connected across the insert points will affects the MAIN OUTPUTS, MONITOR OUTPUTS, and the USB 

audio feed to your computer. Note that when the KL-8 is set to RECORDING mode, any audio output from your 

computer over USB will not be affected by these insert points.

TRS

TS

Summary of Contents for KL-8

Page 1: ...pearance are subject to change without notice Copyright 2019 Radial Engineering Ltd Radial Engineering Ltd 1588 Kebet Way Port Coquitlam BC V3C 5M5 tel 604 942 1001 fax 604 942 1010 email info radiale...

Page 2: ...uently asked questions how to videos and updated drivers for use with Windows computers You can also submit your own questions if you are still in need of additional information and we will do our bes...

Page 3: ...sets of outputs can also be summed to mono for use with systems that have limited channel availability Dual 1 4 headphone outputs are also included for local monitoring and testing A cue system allows...

Page 4: ...stem ON activates these outputs MONO sums the left and right channels together PHONES TRS headphone outputs with level control USB SELECT Switches between primary and backup USB connections AUX RETURN...

Page 5: ...king connection for external switching power supply USB ASSIGN Changes the routing of the audio to and from the USB connec tions for use on stage LIVE or in the studio RECORDING MAIN OUTPUTS Balanced...

Page 6: ...d to feed a PA system recording interface or a set of powered speakers via balanced XLR cables Connect the MAIN OUTPUTS to your primary audio system and the MONITOR OUTPUTS to a pair of powered speake...

Page 7: ...hes have been disengaged the red CUE LED will turn off and the headphone outputs will be fed a copy of the overall mix so you can hear what will feed the Monitor outputs If you turned up the headphone...

Page 8: ...the MAIN outputs This allows you to monitor a signal locally through the KL 8 without sending it out to the audience AUX RETURN ASSIGN ALL OUPUTS MONITOR AND HEADPHONES ONLY If the optional JR1 L lat...

Page 9: ...n your connected devices You can also use an external JR1 L footswitch to control this feature remotely when the JR1 L is connected it will disable the USB SELECT switch on the KL 8 but the LEDs on th...

Page 10: ...ty of the time especially when using the mixer during a performance Live Recording When the USB ASSIGN switch is engaged the KL 8 is in RECORDING mode and the USB audio output from the computer is sen...

Page 11: ...rol a soft synth connect the MIDI output of your keyboard to the MIDI IN on the KL 8 using a standard MIDI 5 pin DIN connector Please refer to your DAW s manual for instructions on how to set up a MID...

Page 12: ...odating for larger setups that require more than four keyboards To link two or more KL 8s connect a 1 4 TRS cable from the LINK SEND of the first unit to the LINK RECEIVE of the next KL 8 The last KL...

Page 13: ...referred to 28 dBu 102 dB A Weighted THD N 0 01 100Hz to 20kHz 0 dBu 80 dB HEADPHONE OUTPUTS Maximum Output 0 4 W into 15 8 3 VRMS max Output Impedance 51 Input Gain Range 80 dB to 10 dB USB DIGITAL C...

Page 14: ...True to the Music Radial Engineering Ltd KL 8 Owner s Manual Notes...

Page 15: ...True to the Music Radial Engineering Ltd KL 8 Owner s Manual Notes...

Page 16: ...modification by any other than an authorized Radial repair center THERE ARE NO EXPRESSED WARRANTIES OTHER THAN THOSE ON THE FACE HEREOF AND DE SCRIBED ABOVE NO WARRANTIES WHETHER EXPRESSED OR IMPLIED...

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