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Radial Key-Largo

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Radial Key-Largo

Keyboard Mixer with 3 Stereo Inputs, Effects Bus, USB and Balanced XLR Out

Brand New


Regular Price: $379.99

Special Price: $319.99

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Product Description for the Radial Key-Largo

The Key-Largo is a unique and powerful device that combines a multi-channel keyboard mixer with the performance attributes of real-time footswitch control!

Designed for stage use, the compact design features three dual ¼" analog inputs for standard performance keyboards along with a USB interface to connect a laptop for use with soft-synths. Each stereo input is equipped with an individual level control for quick onstage adjustments along with an effects loop to interface an external multi-effects device. The effects loop can then be turned on or off using the built-in footswitch to activate an echo or reverb when desired. The effects bus is stereo but may be summed mono when using guitar-style pedals. To add even more fun to the performance, a built-in sustain footswitch lets you connect the Key-Largo to your master keyboard or digital piano using a standard guitar cable, eliminating the need to bring a separate sustain footswitch to the gig!

As with all Radial products, the Key-Largo is made tough and sounds great! It features solid 14-gauge steel construction with steel-shafted potentiometers and switches to handle the abuse of being on the road. Inside, a switch-mode power supply elevates the rail voltage to 24 volts for extra headroom to handle the most dynamic digital keyboards and fattest analog synths without fear of overload or distortion. Separate monitor outputs allow the artist to adjust the level on-stage while the XLR main outputs provide a balanced connection to the PA system. The main outputs are transformer isolated to eliminate hum and buzz caused by ground loops and all outputs are equipped with ground lift switches to further abate noise.

With both USB and MIDI connectivity, the Key-Largo easily integrates with all types of keyboard setups. High quality 24bit/192kHz converters allow playback of the best sample libraries and soft-synths, and also provide the ability to record over USB with excellent audio quality. This means the Key-Largo can also be used as a robust recording interface, ideal for recording tracks when on the road or capturing your live performance.

Manage a multi-keyboard setup with ease

The Key-Largo effortlessly mixes multiple keyboard outputs down to a stereo feed for the PA system over XLRs. Add more excitement to the performance with a switchable effects loop and master volume pedal.

Integrate a soft-synth on stage

The Key-Largo can take the MIDI output from a controller to play a soft-synth on your laptop. High quality digital-to-analog converters give you great sound quality on local monitors and at the PA system.

Combine analog and digital on stage

Mix three keyboards together with the output of a laptop soft-synth, making the Key-Largo the center of your performance setup. Connect a ¼” cable to the footswitch input on your main keyboard to utilize the Key-Largo as a sustain pedal, fully implementing the many features of this powerful pedal.

Even though the Key-Largo is built into a compact space-saving chassis, it is still a powerful line mixer with tons of headroom. A switch-mode power supply internally elevates the rail voltage to 24 volts which allows it to handle the hottest keyboard and synth outputs without choking. Custom isolation transformers on the XLR outputs prevent buzz and hum when connecting to a pair of powered speakers or the PA system, with additional ground lifts for further noise abatement. A USB connection includes 24bit / 192kHz converters for high quality playback or recording with a laptop; perfect for use with soft-synths on stage or recording an idea when inspiration strikes.


  • 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
  • Noise Floor : -91dBu
  • Clip Level - Input : +12dBu
  • Clip Level - Output : +24dBu
  • Maximum Gain - Input to Output:      +12dBu
  • Total Harmonic Distortion : <0.005% @ 1kHz
  • Input Impedence - Analog Inputs : 20k Ohms
  • Input Impedence - FX Return : 50k Ohms
  • Input Impedence - Volume Return : 485k Ohms
  • Output Impedence - XLR : 300 Ohms
  • Output Impedence - ¼ : 450 Ohms
  • Output Impedence - FX Send : 1k Ohms
  • Output Impedence - Volume Send : 300 Ohms
  • Controls - Boost : Input level Ch 1-3, USB input level, EFX send/receive, Main/monitor output level
  • Switches : Momentary sustain, Effects on/off, Effects mono/stereo, Ground lift, Sustain closed/open, USB assign
  • Effects Loop : ¼ send and return jacks
  • LED Indicators : Large 3mm OD ultra-bright LEDs
  • Power    260mA, 15VDC (center pin positive)
  • Construction : 14-gauge steel
  • Finish : Durable Powder Coat
  • Size (L x W x H) : 8.4" x 5" x 1.9" (21.3cm x 12.7cm x 4.8cm)
  • Shipping Size (L x W x H) : 13.3" x 5.1" x 3" (33.7cm x 13cm x 7.6cm)
  • FCC Approval : Complies with section 15 of the FCC rules
  • Conditions : For indoor use at temperatures between +5°C and +40°C
Brand Radial
Weight 4.3000
Dimensions (WxHxD) No


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