Pricing and availability

We compare 600+ stores and found this item at 9 stores. Prices updated .

Sweetwater
4.5 (8)
$949.99
Amazon
4.4 (9)
$949.99
Reverb
$899.99 New
$518.79 Used
Musician's Friend
3.0 (1)
$949.99
B&H
5.0 (1)
$949.99
Thomann
5.0 (9)
$1,055.00
Vintage King
5.0 (1)
$949.99

Average Price: $912

Standard/Professional

$200

$1001+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 7 merchants for "Radial KL-8 Rackmount Keyboard Mixer". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

The Radial KL-8 Rackmount Keyboard Mixer is the ultimate tool for keyboard maestros seeking seamless integration and control of their multi-keyboard setups. Designed with the needs of modern musicians in mind, this professional mixer offers four stereo analog inputs that allow you to effortlessly manage multiple keyboards. The KL-8 is also equipped with MIDI and USB connections, making it easy to incorporate laptop soft synths into your setup.

What truly sets the KL-8 apart is its redundant USB ports, ensuring that your performance remains uninterrupted even if your main laptop fails. Simply switch to your backup with the flick of a switch and keep the music flowing. This feature is a lifesaver for live performances where reliability is crucial.

The KL-8’s flexible stereo aux send/receive functions let you integrate effects like reverbs and delays, or even add a fifth keyboard. With its high-quality 24-bit/192kHz AD/DA converters and transformer-isolated XLR main outputs, you’re guaranteed pristine sound quality both on stage and in the studio. Dual headphone outputs, powered by a built-in amp, offer silent monitoring and cueing, vital for on-stage adjustments without affecting the main output.

Key Features:

  • Four stereo analog inputs for keyboards
  • MIDI and USB connections for laptop soft synths
  • Redundant USB ports for seamless backup transitions
  • Stereo aux send/receive for effects integration
  • Dual headphone outputs with built-in amplifier
  • Cue switch for silent monitoring and patch adjustments
  • High-quality 24-bit/192kHz AD/DA and transformer-isolated XLR outputs

Whether you're in the studio or on stage, the Radial KL-8 is your trusty sidekick, ensuring your keyboard rig performs flawlessly.

Owner's manual

Radial KL-8 Rackmount Keyboard Mixer User Manual

Product specs

Type Keyboard Mixer
Channels 4 (stereo)
Computer Connectivity USB
Inputs - Line 8 x 1/4" (4 x channels)
Outputs - Main 2 x XLR (main), 2 x XLR (monitor)
Aux Sends 2 x Stereo (send/receive)
Send/Return I/O 2 x 1/4" (send stereo), 2 x 1/4" (return stereo)
Inserts 2 x 1/4" TRS (send/receive)
Headphones 2 x 1/4"
USB 2 x Type B (redundant)
MIDI I/O In/Out
Other I/O 2 x 1/4" (remote USB/Aux switch), 2 x 1/4" TRS (link)
Rackmountable Yes, 1U
Power Source 4-pin AC Adapter (included)
Height 1.62"
Width 19"
Depth 7"
Weight 6.25 lbs.

FAQs

How many keyboards can the Radial KL-8 Rackmount Keyboard Mixer accommodate?

The Radial KL-8 can handle up to four stereo keyboards, providing eight 1/4" line inputs for comprehensive connectivity.

Does the Radial KL-8 support USB connectivity for direct computer integration?

Yes, the Radial KL-8 features dual USB Type B ports, allowing for seamless computer connectivity and redundancy for live performance reliability.

Can the Radial KL-8 be used in a rack setup?

Absolutely, the Radial KL-8 is designed for rackmounting and fits into a standard 1U rack space, making it ideal for studio or live setups.

What type of outputs does the Radial KL-8 offer for live sound integration?

The Radial KL-8 provides two main XLR outputs and two XLR monitor outputs, ensuring versatile connectivity for live sound systems.

Is the Radial KL-8 suitable for live performances?

Yes, the Radial KL-8 is perfect for live performances, offering features like redundant USB ports, MIDI I/O, and multiple stereo aux sends for flexibility and reliability on stage.

fromstudiotostage

fromstudiotostage

KeyLargo and KL-8: Everything the Live Keyboardist needs to manage their rig!

Video thumbnail for KeyLargo and KL-8: Everything the Live Keyboardist needs to manage their rig! by fromstudiotostage

KeyLargo and KL-8: Everything the Live Keyboardist needs to manage their rig!

fromstudiotostage

fromstudiotostage

Video thumbnail for L&M @ NAMM 2019: Radial Engineering by Long & McQuade Musical Instruments

L&M @ NAMM 2019: Radial Engineering

Long & McQuade Musical Instruments

Long & McQuade Musical Instruments

Video thumbnail for Eugene “Man-Man” Roberts by Radial Engineering

Eugene “Man-Man” Roberts

Radial Engineering

Radial Engineering

Reviews

PROS

  • High-quality build and sound, even at high gains

  • Excellent for managing multiple keyboards with easy level setting

  • Bright blue lights improve visibility and control

  • Enhances keyboard sounds accurately

  • Features like aux channel, USB MIDI, and digital audio support versatile setups

  • Separate stereo outputs for monitor and mains, with mono switch option

  • Crystal clear sound for monitors/FOH, improving overall audio quality

  • Allows linking multiple units for extended channel support

  • USB connectivity for seamless integration with Macs

  • Unique feature to mix in vocal monitor inputs without feedback loop

CONS

  • Power supply sensitive to power strips, causing noise issues at higher gains

Critic Reviews

Radial KL-8

soundonsound.com

The Radial KL-8 Rackmount Keyboard Mixer is a robust and versatile tool that caters excellently to gigging keyboardists. Its solid construction and extensive I/O options make it an appealing choice for live performance. The dual USB ports and clever channel routing facilitate seamless integration with computers, allowing for a smooth transition between live play and recording. However, the absence of a power switch and the lack of MIDI control can be drawbacks for some users. While it shines in functionality, its hefty weight might deter those seeking portability. Overall, the KL-8 balances professionalism with practical features, inviting players to embrace its potential while acknowledging a few design oversights.

positive

Radial Engineering KL-8 review | MusicRadar

musicradar.com

The Radial KL-8 is a robust keyboard mixer/interface that packs a punch with its extensive features tailored for gigging musicians. Its sturdy, road-worthy build and flexible I/O options, including MIDI and USB capabilities, make it a valuable addition to any setup. However, accessibility issues, such as the hard-to-reach Aux Return Assign switch and rear control for Live/Record modes, can be frustrating. If you're willing to invest in quality and versatility, the KL-8 stands out as a powerful centerpiece for your keyboard rig, despite its high price tag.

positive

Based on 0 Reviews and 0 Ratings

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Artist usage

Add artist
See how Jordan Rudess uses Radial KL-8 Rackmount Keyboard Mixer

Jordan Rudess

Keyboardist, Composer

Dream Theater

...
Source: YouTube

At 12:18 on this rig rundown video, Jordan explains the way he uses the Radial KL-8 mixer. This video shows his keyboard rig for Dream Theater's tour 2019.

See how Keith Urban uses Radial KL-8 Rackmount Keyboard Mixer

Keith Urban

Guitarist, Bassist

Artists of Then, Now & Forever

...
Source: YouTube

At 46:37 in the "Keith Urban Rig Rundown for High and Alive Tour 2025" video by Premier Guitar, Keith Urban is shown using a Radial KL-8 Rackmount Keyboard Mixer as part of his amp rack during a live performance.

See how Eric Cannata uses Radial KL-8 Rackmount Keyboard Mixer

Eric Cannata

Guitarist

Young the Giant

...
Source: reverb.com

An unused KL-8 was listed by Cannata on Young the Giant's Reverb.com shop in 2022.

Mint condition Radial KL-8 rack-mount keyboard mixer for sale. Opened this up and realized it wasn't exactly what I was looking for for my set up so it's been sitting in the box un-used.

Hope it finds a home where it will be used !

E

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Radial KL-8 Rackmount Keyboard Mixer, it is most commonly used with the following gear.

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Community setups

Show yours
M

mandatorygnome

GearIQ 210

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