JS electronics
MIDI solutions for musicians
We are closed!
Due to some organizational changes we closed our production and sales.
We hope to come back soon to continue the line of MIDI controllers as well as some new ideas which are waiting to be developed. Stay tuned.
Due to some organizational changes we closed our production and sales.
We hope to come back soon to continue the line of MIDI controllers as well as some new ideas which are waiting to be developed.
Our Products
JS-823II Red
Comming soon!
MIDI foot controller.
- 13 notes in single note mode
- 13 customizable chords in chord mode different in each preset
- Mode switch (Note Mode, Chord Mode, Scale Edit Mode, Chord Edit Mode)
- octave up & down
- preset up & down
- USB-C connection
- 16 OLED screens
- 32 presets
JS-823 Green
MIDI foot controller.
- 13 notes in single note mode
- 13 customizable chords in chord mode
- Mode switch
- octave up & down (MIDI channel up & down)
- USB-C connection
- OLED screen
JS-823 Red
MIDI foot controller.
- 13 notes in single note mode
- 13 customizable chords in chord mode
- Mode switch
- octave up & down (MIDI channel up & down)
- USB-C connection
- OLED screen
JS T-BOX mini and JS T-BOX TT
USB MIDI HUB for connecting any MIDI controller into Tonex One and get access to all 20 presets of Tonex One.
This product is based on software by Greg Smith's Open Source GitHub project (https://github.com/Builty/TonexOneController)
We take no responsibility for the software which is not our own.
T-BOX includes:
- MIDI in and MIDI thru DIN 5-pin connections
- 9V DC connection (Boss polarity)
- USB-C connection for Tonex
T-BOX TT additionally is equipped with Tap Tempo foot switch which changes Global Tempo of Tonex One.
ABOUT PRODUCTS
JS-823 Family






ABOUT PRODUCTS
JS T-BOX
JS T-BOX - USB-MIDI HUB for Tonex One. This small unit allows you to switch through all 20 patches of Tonex One with any MIDI controller.
T-BOX is based on ESP32-S3 ZERO controller and it’s based on GitHub Open Source project made by Greg Smith: https://github.com/Builty/TonexOneController
The software can be used under the Apache 2.0 license and JS-electronics is not the owner of the software.
We are not taking any responsibility about the functioning of the software and any problems in future updates of Tonex OS.
Please check the link for more details about all the functions of the software.
T-BOX includes USB-C connection for Tonex One, MIDI in and MIDI thru to connect any MIDI controller, 9V DC input to power the device which can power the Tonex by USB-C. T-BOX TT additionally includes tap tempo foot switch.
Both versions of T-BOX have mounting wholes for
zip tights
which you can use to mount it to your pedalboard.





Contact:
office@jselectronics.pl
Technical Support:
support@jselectronics.pl
Orders:
orders@jselectronics.pl
JS electronics
Łukasz Gruszewski
NIP / VAT# 6381648007
Poland