Korg NTS-1 MK2 Build n Try

Some clips of building the Korg NTS-1 MK2 and a first try out before trying to develop some custom oscillators.

7/25/20254 min read

Korg NTs-1 MK2 main box
Korg NTs-1 MK2 main box

I recently got a Korg NTS-1 MK2 as a gift (after some hinting)

I liked the look of this synth, especially as it has the option to be used as an effects processor as well. It also gives the user an option to write custom code for oscillators and effects. Hopefully, when I get the time, I will get round to writing some custom code.

I also have a Ksoloti Gills synth as well, that is a similar type of thing (shown on previous blogs and videos), but the NTS-1 MK2 also looked very interesting.

**** For the future.... Some links to the Korg NTS-1 MK2, including the logue-sdk (programming kit) are here.

GitHub - korginc/logue-sdk: This repository contains all the files and tools needed to build custom oscillators and effects for the prologue synthesizer.

A good link about making custom effects for NTS-1 (for MK1 but also applicable to MK2)

https://www.korg.com/uk/products/dj/nts_1/custom_effects.php

How to install the development kit and compiler under windows is below.

https://korgnts1beginnersguide.wordpress.com/setting-up-the-development-environment/

Project Resources – Embedded Music Signal Processing on the Korg NTS-1

****

You have to build it yourself, but no soldering is involved, you just have to assemble the various boards into one unit. The following pictures outline the build process and also link to a video that provides some sound demos as well.

Main components

After unboxing, the main assemblies are as follows.... (from left to right).

Main board - includes the main processor, connectors speakers, etc.

Corner posts, end panels, and screws.

Top, control and display panel, side panels and bottom panel :. NOTE: these are supplied as one unit, with score lines to allow you to carefully bend and separate them. Be very careful when doing this, so as not to damage the components on the top panel.

1 Korg NTS-1 MK2 Main components
1 Korg NTS-1 MK2 Main components

Separating the boards

When separating the boards try to gradually weaken them along the score lines, before finally separating them. Try to work close to the score lines and avoid applying pressure to any of the attached components.

2 Korg NTS-1 MK2 Breaking Boards
2 Korg NTS-1 MK2 Breaking Boards
3 Korg NTS-1 MK2 Breaking boards
3 Korg NTS-1 MK2 Breaking boards

Fixing corner posts and end panels

Fixing the corner posts is pretty fiddly, make sure that you don't cross thread anything. Also, its a good idea not to tighten any of the screws up fully before it is finally assembled. i.e, leave a bit of 'play' to allow for final alignment.

4 Korg NTS-1 MK2 Fixing Corner Posts
4 Korg NTS-1 MK2 Fixing Corner Posts
5 Korg NTS-1 MK2 Fixing end panels
5 Korg NTS-1 MK2 Fixing end panels
6 Korg NTS-1 MK2 fixing end panels
6 Korg NTS-1 MK2 fixing end panels
6 Korg NTS-1 MK2 fixing end panels
6 Korg NTS-1 MK2 fixing end panels

Assembling component boards and fitting into base

Note: there is a cut-out on the boards to indicate correct alignment during assembly.

The top control board and the main board are connected together by pin-headers. Take care to align the pins correctly when assembling the boards.

Also: When placing the assembled boards onto the based board, I found it was best to keep the end panel screws backed-off quite a lot, and the corner post screws loose. You can tighten everything up when it is all assembled.

8 Korg NTS-1 MK2 Alignment cut-out
8 Korg NTS-1 MK2 Alignment cut-out
9 Korg NTS-1 MK2 Connecting boards
9 Korg NTS-1 MK2 Connecting boards
10 Korg NTS-1 MK2 Placing main boards
10 Korg NTS-1 MK2 Placing main boards

Fitting front and back side panels

These panels are relatively easy to fit, but make sure that they align with the connectors, volume control and on-off switch before final tightening of the assembly.

11 Korg NTS-1 MK2 Side panel alignment
11 Korg NTS-1 MK2 Side panel alignment
12 Korg NTS-1 MK2 Side panel alignment
12 Korg NTS-1 MK2 Side panel alignment

Final fixing and final unit

Once everything is assembled, tighten all the screws whilst taking care that all of the parts remain in alignment.

13 Korg NTS-1 MK2 Final fixing
13 Korg NTS-1 MK2 Final fixing
14 Korg NTS-1 MK2 Finally assembled
14 Korg NTS-1 MK2 Finally assembled

Trying it out

The NTS-1 MK2 comes pre-loaded with some synth, oscillator and effects engines. But you can also download other ones to install onto it from the following locations.

https://korginc.github.io/logue-sdk/unit-index/korg_examples/

https://github.com/tweeeeeak/nts

There is a pretty good Korg Volca Bass emulation on the last link.

You also need the Korg control editor software to load the various synth modules onto the NTS-1 MK2

https://www.korg.com/uk/products/synthesizers/nts_1_mk2/editor.php

Videos of the build process and various initial sound try-outs are linked below. I'll try and do something better when I get the chance. Please like, subscribe, comment, support etc etc, if you can.