The Drum8 Goes Open Source

September 26, 2016

The dsp-D8 is a great drum chip with its 8 voice polyphonic playing capabilities. But the 28-pin DIP can be quite large for DIY projects.

The Drum8 is much smaller with a 14-pin DIP footprint hosting still the same 8 voice polyphony adding a global pitch CV and a true analog accent input.

The trigger inputs has change to rising edge detection and it now runs on the ATtiny84.

And the best of all,
It goes open source this week with the code posted here in the right side menu.


Drum8 Vintage available

September 12, 2016

The Drum8 Vintage is available from today.

Featuring the new u808 chip it has 8 polyphonic vintage drum sounds.

If you already have a Drum8 module the chip is a drop in replacement.


Order the u808 chip $20 including international shipping


The module is a limited edition run and only available in a series of 10 modules.

Sound inspired by the classic 808 rhythm composer.

Featuring 8 Positive edge trigger inputs it also has a global analog accent CV input with a range of +6db to +48db, a global tune knob and a CV for sample rate modulation of 15% to 400% and a mono Output.

Order the limited edition 808 module $99 including international shipping


Release for the Zero 3HP line

August 31, 2016

First out is the Zero Bassline. A 3HP bassline synth.

Featuring Filter resonance and Filter decay knobs.
1V/oct Pitch CV and Gate CV inputs.

The Zero line is all about filling out holes and odd space in your rack.
In that case you don’t want to spend another power connector.

Zero power, zero problems, fat sound.
Look ma, no power connector!

Order the Zero Bassline $40 including international shipping.




Demo of the Drum8 with the uPops chip

August 23, 2016

The Drum8 4HP euro module is an 8-voice polyphonic sampling drum module in a 4HP eurorack module.

Featuring 8 rising edge triggers, a tune (15 – 400%) knob with CV input and an accent input (48 dB range).

The demo has the uPops chip installed (Micropops7 emulation)

You can  get the module now for $80 including international shipping.

Order the Drum8 $80 including international shipping

Other modules are available at

Release for the 3HP Zero drum module

August 8, 2016


Release for the revolutionary 3HP Zero drum module on the 1st of September. 
Monophonic/Duophonic 44.1KHz drumsound.
Trig and accent inputs, either 1 trig and 1 accent or 2 trig inputs.
Mono jack output.
1 pitch knob.
1 decay knob.

What is so revolutionary about that?
It has no power connector.

Yes, thats right, it’s passive and dont need any power.
The worlds first ghost powered eurorack module.

It gets its power from the triggers.
Put a few of them in a shoebox and run them from a Beatstep Pro.
No power cable needed.


And the best of all is the price.

It will be $40 prebuilt.

The cons: You have to wait until the 1st of September.

Summer sale at DSP Synthesizers

August 6, 2016


The sale  has ended and the modules will be shipped.

Shipping will start on 8/15 according to the list of order.

Those that ordered first will be shipped first.


Demo of the 4HP Nanodrum LM1 Module

August 2, 2016

Some reverb added otherwise straight out from the module.

That great classic 80’s drum sound with a deep kick.

You can order it right here and now:

The LM1 4HP module prebuilt $99 including shipping

DIY PCB/Panel/Chip kit $49 including shipping


New demo of the 4HP Nanodrum R606

August 1, 2016

Some reverb added otherwise straight out from the module.

You can order  it right here and now:

The R606 4HP module prebuilt $99 including shipping

DIY PCB/Panel/Chip kit $49 including shipping


The Nano Drum is now up on Indiegogo

July 6, 2016

The Nano Drums are now up on Indiegogo:

Also available as a DIY kit.

Please support the development of these great modules.


Demos for the R606, R727 & “The Drum” 4HP modules

July 5, 2016

Here are some peeks of the 4HP Nano Drum module series.

You find them at