The Compressor Ross - Compressor kit

Item number: 213

Category: Modulation, Dynamic


starting from 24,00 €

Final price incl. VAT, plus shipping (mitttel)


Shipping time: 3-7 Working days


The Compressor is based on a famous Compressor pedal.

This kit contains all parts you need to build a fully functional effect pedal.

Not included in the kit, but also very good to have:

  • Aluminium enclosure: select one above.
  • 9V battery or DC power supply
  • 2 nice knobs for the pots, for 6.3mm shafts
  • Decal, transfer or transparent sheets for labeling

Instrument: Guitar Bass
Effect-Type: Compressor


Here are two superb videos made by Stefan:

Build documents

Installation guide: Installation guide

Schematic and pcb: Schematic

Parts list (BOM): Parts list

BIAS: Bias and values

Ratings (21)

Average product review

4 Stars
3 Stars
2 Stars
1 Star

Share your experience with other customers:

The most useful review

1 from 1 Customers found the following product review helpful
5 from 5 A Fantastic Kit!

I see there are not many reviews on this product, so I though Id share my impressions.

First of all, all the parts came in neat zip-lock bags sorted by type, and resistors even had hand-written values on them! That was a particularly nice addition, and saved some time with google searching resistor value chart.

Second, the PCB was produced in a high quality, and was easy to solder. Maybe I just have a decent soldering iron, and maybe it was because I used solder wire with flux already in it, but it was a pretty pleasant 4-hour solder I had.

Third, I did not encounter any problems with the build, since the manuals provided were clear, and I do not really have anything negative to say. It was just as I expected, and a great overall experience...

... of course, if we exclude the incompetency of DHL shipping... thanks to that it took 9 days (not 5-7 as promised) to deliver. Though, that is no fault of Musikding. At least in my opinion.

P.S. Also the compressor works great with bass, and does not do much, but exactly what I need it to do - increases a bit of highs in the tone (for those sweet Tool riffs and awesome harmonies), cuts a bit of negative hiss, and adds some sustain to the note, while also cutting the extensive bass, when jamming some stoner music on E strings high frets.

Have a nice build!

., 10.06.2015
Total entries: 8
5 from 5 Compressor

Very transparent sound, with a lot of gain. With the same pcb you can leave some component and build the dyna-version.

., 25.03.2015
5 from 5 Good

Good quality, nice sound

., 27.04.2016
5 from 5 Easy, accurate build

This was my first attempt ever at building a stomp box. The parts were easy to fit on the PCB, and soldering went well - despite my old, grumpy soldering pen. Nothing missing in the kit, and the way components were labeled made it simple to lay out where each part should go. The compressor worked well right away.

There will be more builds in the future, without a doubt!

., 02.03.2017
5 from 5 Great Kit - Top quality Boards

This is the second kit I have built from musikding - the first was the Rat. I found both kits exceellent with some nice added extras like labelled resistors and pre stripped connecting wire.
Both builds were straight forward to assemble and worked straight off with no issues.
The Compressor Ross is simple to use and gives a good range of comression as well as adding a pleasant flavour to the guitar tone - I spent a bit of time fiddling with the trim pot, not sure what the optimun setting is but its working for me.
Highly recommended.

., 12.03.2018
5 from 5 Awesome Compressor

This is the second guitar pedal I build. The compressor Ross sounds awesome, it makes your sound fat and compressed but at the same time its transparent and super silent. I built 2 compressor Ross, one for the bass and one for guitar. The footswitch PCB is very useful and it makes the wiring a lot easier. If I can suggest, buying a Helping Hand is a brilliant idea, this little tool is really, really helpful.

., 13.02.2020
5 from 5 Un buen compresor

Muy similar a Ross original. Encantado con este kit, fácil de montar y totalmente recomedable.

., 01.02.2021
5 from 5 A must have!

For me, a compressor is a must-have in your pedalboard, and this kit make it possible bringing to you an easy-to-build pedal that set your sound to an higher level. Not so easy to set up after the building, like every compressor pedal, but very recommended cause when you finally find your ideal setup, it was worth it!

., 30.09.2022
5 from 5 Nice Compressor (english/français)

It was my second pedal and it was quite easy and straightforward to build .
As allways the bags are well organized and the resistors are all labelled .
Its not the most silent compressor but , being of basic use , it does perfectly the job.
I use it mainly for funky rythm guitar and its my most important pedal on the pedalboard ( set aside overdrives).
To try it is to adopt it :-)

P.S. I also built the Engineers Thumb compressor (a much more advanced comp), and I finally kept the Ross for the guitar and the Engineers Thumb for the bass.
Cétait ma seconde pédale . La construction est facile et sans soucis particulier . Comme toujours, les sachets sont bien organisés et les résistances bien étiquetées.
Ce nest pas le compresseur le plus silencieux, mais tout en restant simple ( avec ses 2 uniques boutons) , il fait bien le boulot .
Je lutilise surtout pour les rythmiques funky et cest devenu la pédale la plus importante de mon pédalier (à lexception des overdrives) .
Lessayer cest ladopter !!

P.S. Jai également construit le compresseur Engineers Thumb ( beaucoup plus évolué) et finalement jai gardé le Ross pour la guitare et lEngineers Thumb pour la basse.

., 19.10.2022
Total entries: 8

Other customers have also bought the following items
The Screamer - Overdrive kit

The Screamer - Overdrive kit

starting from 23,50 € *
The Angel - Chorus kit

The Angel - Chorus kit

starting from 24,00 € *
The Phaser - Phaser kit

The Phaser - Phaser kit

starting from 29,00 € *
3PDT footswitch

3PDT footswitch

3,90 € *