Line 6 TonePort KB37 review (2024)

MusicRadar Verdict

Despite a few limitations, the KB37 is a very tempting proposition for new-to-computer-recording guitarists to consider.

Pros

  • +

    Decent keyboard. Great sounds. Quality audio interface. Covers all bases. Hands-on control of software amp parameters.

Cons

  • -

    Can’t use software as a plug-in. Only one velocity curve option. Could use a couple more rotary controllers.

MusicRadar's got your back Our team of expert musicians and producers spends hours testing products to help you choose the best music-making gear for you. Find out more about how we test.

For many recording guitarists, the keyboard is a necessary evil. Conscious of this, Line 6 have created the KB37 -- a controller keyboard and audio interface that comes cunningly disguised as a piece of 1960s studio-ware. The flowing retro lines draw your fingers to the control surface and the build quality is very good. The plastic casing offers a resilience that belies its light weight and the rotary controls operate smoothly, while offering the right amount of resistance.

The three octaves of keys have a smooth ‘synth´ action and feature a single, middle-of-the-road velocity curve that gives decent playability of most instruments. It´s a shame that no alternative curves are offered, however. The range is expanded by the Octave Select buttons, offering three octaves up/down.

The audio interface element of the KB37 is similar in functionality to that of the Line 6 UX2. Two microphone inputs are provided (with phantom power) as well as two line inputs, a stereo monitor input, an expression pedal, two footswitch inputs and an instrument input complete with pad.

In the other direction, there are two analogue outs and S/PDIF stereo out. Also onboard are two bona fide VU meters. These indicate input, send, monitor or output levels depending on what you select in the software. Guitar tone generation is handled by Line 6´s GearBox software. This version is standalone, though you can pay to upgrade if you want plug-in functionality.

Breathtaking sounds

Included are 18 guitar amp, five bass amp, six preamp and 30 effect models. Plenty more can be bought as add-ons from the Line 6 website. The models sound sublime -- some truly breathtaking sounds can be found in the presets alone. From a production point of view, all bases are covered, with the mic preamp models being a particularly excellent resource.

The KB37 is a great multitasker, coming in handy for guitar, bass, vocal and keyboard recordings. What´s more, its compact size and light weight make it ideal for carting around with a laptop. If the KB37 came with the plug-in version of GearBox, it would receive very high marks. As it stands, however, there´s no way of altering sounds once they´re recorded -- a major drawback. Redemption, however, comes in the form of incredible ease of use and very high quality sounds, and these features ensure that the KB37 emerges as another fine Line 6 product.

Line 6 TonePort KB37 review (3)

Music Radar Team

MusicRadar is the number 1 website for music makers of all kinds, be they guitarists, drummers, keyboard players, djs or producers...

  • GEAR:We help musicians find the best gear with top-ranking gear round-ups and high- quality, authoritative reviews by a wide team of highly experienced experts.
  • TIPS:We also provide tuition, from bite-sized tips to advanced work-outs and guidance from recognised musicians and stars.
  • STARS:We talk to musicians and stars about their creative processes, and the nuts and bolts of their gear and technique. We give fans an insight into the actual craft of music making that no other music website can.

Latest

“I’m about to pull my catalog from these vultures, enough’s enough”: Is Deadmau5 about to delete Spotify?60 years of the synth: the '80s7 underrated VST synths you might not know about (but really should)
See more latest►

Most Popular
“If you’d always yearned for atmospheric ‘proper’ guitar but lacked the playing skills and banks of effects, this is it”: E-instruments Desolate Guitars review
“There is a weight and depth to the sound, which is sonically a cut above, as well as being incredibly authoritative”: SonicProjects OP-X PRO-3 review
“v3 delivers a well rounded mix of ‘must-haves’ and ‘wants’”: Korg Gadget 3 review
"The full-size 20” cymbal actually flexes and shimmers when struck, which feels fantastic under-stick": EFnote Pro review
“A surprisingly capable and very easy to use EQ that you can go as deep with as you wish”: Wavesfactory Equalizer review
“This is a kit that will literally grow with them for those early years of playing”: Alesis Debut review
“One of the easiest and classiest-sounding drum instruments in its price range”: Modalics MINDst Drums review
"A small guitar – with useful depths": Gretsch Jim Dandy Deltoluxe Parlor acoustic guitar
“With warm mids, compressed and focussed lows and a militant top-end, this guitar makes short work of classic rock riffa*ge”: Gibson Theodore Standard
“One of the best sound design tools around”: Arturia Pigments 5 review
Line 6 TonePort KB37 review (2024)
Top Articles
Latest Posts
Article information

Author: Lilliana Bartoletti

Last Updated:

Views: 6451

Rating: 4.2 / 5 (53 voted)

Reviews: 84% of readers found this page helpful

Author information

Name: Lilliana Bartoletti

Birthday: 1999-11-18

Address: 58866 Tricia Spurs, North Melvinberg, HI 91346-3774

Phone: +50616620367928

Job: Real-Estate Liaison

Hobby: Graffiti, Astronomy, Handball, Magic, Origami, Fashion, Foreign language learning

Introduction: My name is Lilliana Bartoletti, I am a adventurous, pleasant, shiny, beautiful, handsome, zealous, tasty person who loves writing and wants to share my knowledge and understanding with you.