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MadBox Splitter/Mixer kit

Item number: 1517

Universal splitter/mixer.

Category: TH Custom Effects


starting from 18,00 €

Final price incl. VAT, plus shipping (mitttel)

Available now!

Shipping time: 3-7 Working days


The MadBox is a Splitter/Mixer combination. It can be used to create different tools:

  • Two parallel effects loops, which can be mixed
  • One effects loop, which can be mixed to the dry signal

This kit is a creation by TH Custom in cooperation with Musikding.de. If you have any problem with the content of the kits like mising or wrong parts, please contact Musikding (Klaus) at kontakt@musikding.de. For any technical problem relating to building this project, please contact Thomas at www.thcustom.com.

Here´s the parts list: Parts List (BOM)

This kit contains all parts you need to build a fully functional effect pedal. Not included in the kit, but also good to have:

  • Aluminium enclosure: select one from top
  • 9V DC power supply
  • 1 nice knob for the potentiometer, up to 30mm diameter and for 6.3mm shafts
  • Decal, transfer or transparent sheets for labeling

MadBox docs.

Instrument: Guitar Bass
Effect-Type: Tool, Add-On Routing EQ/Mix

Ratings (8)

Average product review

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1 Star

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Total entries: 6
5 from 5 fine!


., 28.02.2017
5 from 5 Really improve your sound

Easy mounting, great sound & possibilities.
You need to add a knob and an enclosure. Everything else is in the kit included. If you are a bassist you better add three mkt

., 03.03.2018
5 from 5 Nice Tool

Easy to build, work nice.

., 28.05.2018
5 from 5 Facile et utile (easy and useful)

Montage simple à réaliser et pratique car je cherchais à garder mon octaver clean tout en utilisant une disto. Pour gagner un peu de place, jutilise des jacks stéréos pour les boucles auquelles je branche des cables en Y (stéréo 6,35 vers 2 monos 6,35) et comme ça tout tiens dans un boitier de type 125B, je peux même ajouter une pile 9V.

Easy to do and useful to keep my octaver clean while using a distortion. To save a little space, I used stereo jacks for the loops and I plug a Y cable ans everything fits in 125B enclosure, even with a 9V battery.

., 09.07.2019
5 from 5 perfect parallel mixer

perfect tool to combine two signals. I combined it in one box with a booster and a true bypass.

., 10.06.2020
5 from 5 Its simple and just works

Very simple to put together, excellently packaged and labeled by Musikding, as always. The kit comes with an LED and resistor, which are not on the schematic from TH Custom Effects (easy to improvise though), but I dont need another LED on my pedal board, so I left it out.
There is no explicit information on this in the instructions, but I added ground wiring to all the phone jacks, just to make sure the connection is optimal; I dont want to rely on the enclosure to provide the ground circuit.
The splitter/mixer works fine. I do think that the signal is weakened - both effect loops need to include some kind of boost (I combine a fuzz and a distortion in parallel, and both can provide sufficient boost). Also, I dont get a dry signal, only the signal from either one or two of the effect loops. As far as I understand the schematic, its supposed to be that way. If you want the extended version of a splitter/mixer, get the ParaMix kit from Musikding/Guitar PCB (with T-Diddy boost mod if you want the complete works). Costs a little bit more and is a little bit more complicated, but offers much more functionality.
I put it in a BB enclosure that I had lying around. It is way too big, but on the other hand very easy to get all the phone jacks in place with enough space to prevent short circuits. The circuit board is fixed to the pot-meter, which is mounted in the enclosure, so no need to find a way to fixate the circuit board. Do put some isolating material between the pot and the circuit board, just to be sure!
This is the third kit from Musikding that I built, very likely not the last. Very happy with them, always delivering what they promise.

., 17.09.2020
Total entries: 6

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